{"title":"DC Power Supplies","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDC power supplies provide reliable, precision-regulated power for electronics testing, product development, industrial maintenance, manufacturing, research, and educational laboratories.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for professional engineers, technicians, and educators, UNI-T offers a comprehensive selection of programmable DC power supplies, benchtop power supplies, linear power supplies, and switching power supplies to meet virtually any application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrom compact single-output models to advanced multi-channel programmable power supplies, UNI-T instruments deliver stable voltage and current output, intuitive operation, and dependable performance. Many models feature programmable control, USB, LAN, or RS-232 connectivity, making them ideal for automated test systems, electronics repair, circuit design, battery testing, quality control and production environments. Whether you need a laboratory power supply for precision measurements or a high-performance DC bench power supply for demanding applications, UNI-T combines professional features, exceptional accuracy and outstanding value.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"udp5040-40-400w-40v-40a-programmable-dc-switching-power-supply","title":"UDP5040-40 400W 40V\/40A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UNI-T UDP5040-40 is a single-channel 400W programmable DC switching power supply delivering 0–40V and 0–40A with auto-ranging across the rated power envelope.\u003c\/h1\u003e\n\u003cp\u003eIt pairs a wide output range with the regulation accuracy, source-emulation and remote control expected of a professional programmable supply.\u003c\/p\u003e\n\u003cp\u003eVoltage accuracy is ±(0.05% of set + 0.05% of rated) and current accuracy ±(0.5% of set + 0.1% of rated); ripple is held to 50mV p-p with a 100 ppm\/°C temperature coefficient. A 2.4-inch TFT-LCD shows voltage, current and power together, and full SCPI control over USB and LAN drops the UDP5040-40 straight into LabVIEW, Python-VISA or any ATE framework.\u003c\/p\u003e\n\u003ch3\u003eChoosing Your Model: UDP5000 Series\u003c\/h3\u003e\n\u003cp\u003eThe UDP5000 name spans 20 models built on one platform: five voltage classes (40 V \/ 80 V \/ 160 V \/ 250 V \/ 800 V) across four power classes (400 W \/ 800 W \/ 1200 W \/ 2000 W). They differ only in output range and chassis size — control, accuracy, protection and interface are otherwise identical. Compare the full series before selecting:\u003c\/p\u003e\n\u003ctable class=\"product-spec-table\" style=\"table-layout: fixed; width: 100%;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 14%;\"\u003e \u003ccol style=\"width: 17%;\"\u003e \u003ccol style=\"width: 17%;\"\u003e \u003ccol style=\"width: 17%;\"\u003e \u003ccol style=\"width: 17%;\"\u003e \u003ccol style=\"width: 18%;\"\u003e \u003c\/colgroup\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRated Power\u003c\/th\u003e\n\u003cth\u003e40 V\u003c\/th\u003e\n\u003cth\u003e80 V\u003c\/th\u003e\n\u003cth\u003e160 V\u003c\/th\u003e\n\u003cth\u003e250 V\u003c\/th\u003e\n\u003cth\u003e800 V\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e400W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eUDP5040-40\u003c\/strong\u003e\u003cbr\u003e0–40A\u003c\/td\u003e\n\u003ctd\u003eUDP5080-20\u003cbr\u003e0–20A\u003c\/td\u003e\n\u003ctd\u003eUDP5160-8\u003cbr\u003e0–8A\u003c\/td\u003e\n\u003ctd\u003eUDP5250-6\u003cbr\u003e0–6A\u003c\/td\u003e\n\u003ctd\u003eUDP5800-2\u003cbr\u003e0–2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e800W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUDP5040-80\u003cbr\u003e0–80A\u003c\/td\u003e\n\u003ctd\u003eUDP5080-40\u003cbr\u003e0–40A\u003c\/td\u003e\n\u003ctd\u003eUDP5160-16\u003cbr\u003e0–16A\u003c\/td\u003e\n\u003ctd\u003eUDP5250-12\u003cbr\u003e0–12A\u003c\/td\u003e\n\u003ctd\u003eUDP5800-4\u003cbr\u003e0–4A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1200W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUDP5040-120\u003cbr\u003e0–120A\u003c\/td\u003e\n\u003ctd\u003eUDP5080-60\u003cbr\u003e0–60A\u003c\/td\u003e\n\u003ctd\u003eUDP5160-24\u003cbr\u003e0–24A\u003c\/td\u003e\n\u003ctd\u003eUDP5250-18\u003cbr\u003e0–18A\u003c\/td\u003e\n\u003ctd\u003eUDP5800-6\u003cbr\u003e0–6A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e2000W\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUDP5040-200\u003cbr\u003e0–200A\u003c\/td\u003e\n\u003ctd\u003eUDP5080-100\u003cbr\u003e0–100A\u003c\/td\u003e\n\u003ctd\u003eUDP5160-40\u003cbr\u003e0–40A\u003c\/td\u003e\n\u003ctd\u003eUDP5250-30\u003cbr\u003e0–30A\u003c\/td\u003e\n\u003ctd\u003eUDP5800-10\u003cbr\u003e0–10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eEvery model shares the same chassis architecture, control system, regulation accuracy, protection suite, and interface set. The 800 V UDP5800 tier does not support series connection; all other tiers support series and parallel combining. Choose by the voltage class that covers your rail and the power class that covers your load — output range and chassis height scale with power, the instrument does not change.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e400W \/ 0–40V \/ 0–40A — auto-ranging across the rated power envelope\u003c\/li\u003e\n\u003cli\u003eVoltage accuracy ±(0.05% of set + 0.05% of rated); current accuracy ±(0.5% of set + 0.1% of rated)\u003c\/li\u003e\n\u003cli\u003eLow ripple — 50mV p-p voltage, 80mA rms current (20 MHz BW)\u003c\/li\u003e\n\u003cli\u003eCC\/CV priority slope modes — choose voltage-first or current-first turn-on for DUT safety\u003c\/li\u003e\n\u003cli\u003eAdjustable internal resistance to 1.000Ω — emulate batteries, fuel cells and solar sources\u003c\/li\u003e\n\u003cli\u003eList Mode — 128 programmable V\/I\/dwell steps, 1 to 9,999, infinite cycles, stand-alone\u003c\/li\u003e\n\u003cli\u003eFront and rear output terminals (front limited to 10 A)\u003c\/li\u003e\n\u003cli\u003eMulti-unit series\/parallel — up to 4 parallel \/ 4 series\u003c\/li\u003e\n\u003cli\u003eUSB + LAN with full SCPI 1999.0 \/ IEEE-488.2; 2.4-inch TFT-LCD\u003c\/li\u003e\n\u003cli\u003eDischarge-load control for rapid output bleed-down\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCC\/CV Priority: Protect the Device, Not Just the Supply\u003c\/h3\u003e\n\u003cp\u003eMost bench supplies treat the CC\/CV crossover as a fixed hardware behaviour. The UDP5000 lets you choose which parameter takes priority at turn-on and during mode transitions. CV-priority establishes the target voltage first — the right choice for microcontrollers, FPGAs and analog rails. CC-priority brings current up under control — the safer choice for LEDs, laser diodes and battery charging where inrush must be bounded.\u003c\/p\u003e\n\u003ch3\u003eAdjustable Slew Rate: Control How Fast Power Arrives\u003c\/h3\u003e\n\u003ch3\u003eInternal Resistance: Simulate Real Power Sources\u003c\/h3\u003e\n\u003cp\u003eThe internal variable-resistance function (set in CV mode, up to 1.000Ω in 1 mΩ steps) makes the terminal voltage droop with load current exactly as a battery, fuel cell or solar panel would — no physical resistor, no thermal risk, value changeable instantly from the panel or over SCPI.\u003c\/p\u003e\n\u003ch3\u003eFront \u0026amp; Rear Outputs: Bench-Ready and Rack-Ready\u003c\/h3\u003e\n\u003cp\u003eOutput terminals are provided on both panels. Front terminals are there for quick prototype hookup; rear terminals keep permanent rack wiring clean. Both are the same single output — front-panel draw is limited to 10 A, so high-current loads belong on the rear.\u003c\/p\u003e\n\u003ch3\u003eList Mode \u0026amp; Discharge Control: Automate Output Sequences\u003c\/h3\u003e\n\u003cp\u003eList Mode runs up to 128 programmed V\/I\/dwell steps for 1 to 9,999, infinite cycles or continuously, stored locally or exported, executing with no PC attached — built for overnight burn-in, charge-profile runs and production routines. The internal discharge load bleeds output capacitance down rapidly when output is switched off.Voltage and current slew rates are independently settable. A slower ramp prevents inrush into capacitive loads, reduces mechanical stress on motor windings at start-up and gives sensitive analog circuits time to settle; the high-speed default mode is there when fast settling is what the test needs.\u003c\/p\u003e\n\u003ch3\u003eMulti-Unit Operation: Scale When You Need More\u003c\/h3\u003e\n\u003cp\u003eUp to 4 identical units parallel for more current, or up to 4 series for more voltage, coordinated over the rear CAN \/ LS_BUS interface from the master unit or a single SCPI connection; unit-to-unit balance stays within ~5% of rated.\u003c\/p\u003e\n\u003ch3\u003eDisplay and Control\u003c\/h3\u003e\n\u003cp\u003eA 2.4-inch TFT-LCD presents voltage, current and power simultaneously with a concise multifunction keypad; external analog control (0–10 V setpoint plus digital ON\/OFF) is available on the rear analog interface for closed-loop and HIL setups.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eBattery and Energy-Storage Test\u003c\/h3\u003e\n\u003cp\u003eThe wide 0–40 V range covers 12 V to 36 V lithium-ion and LFP packs used in e-bike, power-tool and light-EV work. Internal-resistance emulation and List Mode let you reproduce charge profiles and varying pack states without cycling real cells.\u003c\/p\u003e\n\u003ch3\u003eNew-Energy and Automotive Electronics\u003c\/h3\u003e\n\u003cp\u003eDC\/DC converter input stages, inverter front ends and sub-40 V automotive ECUs benefit from the tight regulation, low ripple and CC\/CV priority control.\u003c\/p\u003e\n\u003ch3\u003eAutomated Test and Production\u003c\/h3\u003e\n\u003cp\u003eSCPI over USB or LAN plus stored List Mode sequences make the UDP5000 a clean fit for unattended characterisation, burn-in and end-of-line test.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUDP5040-40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 (single channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e400W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Adjustable Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Adjustable Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e42A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Setting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Setting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Display Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Display Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Output Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±(0.05% of set + 0.05% of rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Output Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±(0.5% of set + 0.1% of rated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Load Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±6mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Line Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±6mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Load Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±13mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Line Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±6mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Ripple (p-p, 20 MHz BW)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Ripple (rms)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Ripple (rms)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRise Time (rated load)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;50ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFall Time (rated load)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;50ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFall Time (no load)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;500ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustable Internal Resistance (max)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.000Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Sense Compensation (max)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePreset Memory Groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode Groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e128\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode Step Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1s to 99,999.9s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode Cycles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 to 9,999, infinite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Series-Connected Units\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Parallel-Connected Units\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, FOCP, OTP, Power Limit, Watchdog, Output ON\/OFF Delayer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB-Device, USB-Host, LAN, Analog I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCPI \/ IEEE-488.2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (SCPI 1999.0 + IEEE-488.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85-265 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEfficiency (typ)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.99 @100Vac, 0.97 @200Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.4in TFT-LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFan-forced air cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to +50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20% to 85% R.H. (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Altitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2000m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in the box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eCan I use the front and rear output terminals at the same time?\u003c\/h3\u003e\n\u003cp\u003eBoth terminal sets are parallel connections to the same single output. You can wire both, but the front terminals are limited to 10 A maximum — route high-current loads to the rear panel.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between the VHS\/IHS and VSR\/ISR slope modes?\u003c\/h3\u003e\n\u003cp\u003eVHS (CV high-speed) and IHS (CC high-speed) use the supply's default fast rise and fall rates. VSR (CV slope) and ISR (CC slope) let you set the rise and fall rate so output ramps in controlled fashion — useful for capacitive and motor loads, and for sensitive analog circuits that need settling time.\u003c\/p\u003e\n\u003ch3\u003eDoes the internal-resistance function need an external resistor?\u003c\/h3\u003e\n\u003cp\u003eNo. The internal variable-resistance function electronically emulates source impedance (set in CV mode, up to 1.000Ω in 1 mΩ steps), so the supply behaves like a battery, fuel cell or solar source with no physical resistor and no added thermal risk.\u003c\/p\u003e\n\u003ch3\u003eCan multiple units be combined for more power?\u003c\/h3\u003e\n\u003cp\u003eYes. Identical models combine for more current (parallel, up to 4 units) or more voltage (series, up to 4 units), controlled from the master unit or a single SCPI connection; unit-to-unit balance stays within ~5% of rated.\u003c\/p\u003e\n\u003ch3\u003eHow does it integrate with automated test?\u003c\/h3\u003e\n\u003cp\u003eUSB and LAN with full SCPI 1999.0 \/ IEEE-488.2 support LabVIEW, Python-VISA and any standard ATE framework; List Mode runs stored sequences stand-alone without a connected PC.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"181400100343X","offer_id":53826730393824,"sku":"181400100250X","price":1189.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp5040-40-400w-40v40a-programmable-dc-switching-power-supply-181400100250x-6453693.jpg?v=1786149197"},{"product_id":"udp3303c-3ch-195w-30v-3a-programmable-linear-dc-power-supply","title":"UDP3303C 3Ch 195W 30V\/3A Programmable Linear DC Power Supply","description":"\u003ch1\u003eThe UDP3303C is the SCPI-programmable counterpart to the UDP3303A.\u003c\/h1\u003e\n\u003cp\u003eIt features the  same 195W three-channel linear hardware, same CH3 logic-rail selector cycling 1.8V \/ 2.5V \/ 3.3V \/ 5V at 3.2A, same ≤1 mVrms ripple — with a back-panel USB-Device port and RS-232 added for full SCPI control. CH1 and CH2 deliver 0–30V at 0–3A; series and parallel modes extend that to 60V or 6A.\u003c\/p\u003e\n\u003cp\u003eProgramming accuracy holds inside ≤0.1% + 30 mV on voltage and ≤0.5% + 2 mA on current — fine enough for sleep-mode current characterization on IoT prototypes, battery-charge cut-off testing, and any automated sweep that needs the setpoint to land exactly where you asked it. Five preset storage groups (M1–M5), shutdown memory, OVP \/ OCP \/ OTP per channel, and a Digital I\/O hardware ON\/OFF pin pair round out a programmable supply built for benches that have to behave the same way every time. For 5A per adjustable channel, see the UDP3305C; for the knob-only manual variant, see the UDP3303A.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Channels, 195W Total — SCPI Programmable\u003c\/strong\u003e — CH1 and CH2: 0–30V \/ 0–3A adjustable. CH3: switchable 1.8V \/ 2.5V \/ 3.3V \/ 5V at 3.2A. SCPI control over USB-Device or RS-232.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-Device + RS-232 with SCPI\u003c\/strong\u003e — Back-panel data interfaces for PC connection. Standard accessories include both a USB cable (UT-D14) and RS-232 communication line — pick the bus your test rig already uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgramming Accuracy ≤0.1% + 30 mV\u003c\/strong\u003e — Voltage programming accuracy ≤0.1% + 30 mV; current programming accuracy ≤0.5% + 2 mA. Set value matches output value across the full range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH3 Logic-Rail Selector\u003c\/strong\u003e — Single front-panel button cycles CH3 through 1.8V \/ 2.5V \/ 3.3V \/ 5V at 3.2A. CMOS, microcontroller cores, legacy TTL, USB-class — covered without sacrificing CH1\/CH2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Topology, ≤1 mVrms Ripple\u003c\/strong\u003e — Clean DC output for low-noise analog work. Load regulation ≤0.01% + 3 mV in CV mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 mV \/ 1 mA Resolution\u003c\/strong\u003e — Four-digit voltage and current display per channel on EBTN LCD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries, Parallel, and Tracking Modes\u003c\/strong\u003e — Combine CH1+CH2 for up to 60V series or 6A parallel from the front panel. SCPI exposes the same modes for automated test integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP \/ OCP \/ OTP Protection\u003c\/strong\u003e — Configurable per-channel thresholds, plus over-temperature shutdown and keypad lock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive Preset Storage Groups\u003c\/strong\u003e — M1–M5 store full instrument states for fast bench setup. Shutdown memory restores last settings on power-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-Panel 5V\/2A USB Charging Port (CH4)\u003c\/strong\u003e — Independent 5V\/2A USB-A charging output. Charging output only — the data interfaces are USB-Device and RS-232 on the back panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Output Disable via Digital I\/O\u003c\/strong\u003e — Two-pin Digital I\/O terminal for emergency cutoff and external interlock circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetailed Features\u003c\/h2\u003e\n\u003ch3\u003eCH3 Logic-Rail Selector — One Button, Four Voltages\u003c\/h3\u003e\n\u003cp\u003eMost three-channel bench supplies give you two adjustable channels and a fixed 5V rail you'll resent the moment you need 3.3V. The UDP3303C's CH3 cycles between 1.8V, 2.5V, 3.3V, and 5V at 3.2A — covering CMOS logic, modern microcontroller cores, legacy TTL, and USB-class devices — at a single front-panel button press. CH1 and CH2 stay free for the analog work the linear topology is genuinely good at — op-amp rails, sensor bias, charge-pump references, audio circuits — while CH3 handles whatever digital subsystem the project also needs powered. One supply, two adjustable analog rails, one switchable digital rail, all labeled, all protected, all SCPI-controllable.\u003c\/p\u003e\n\u003cdiv class=\"product-box product-right\"\u003e\n\u003ch3\u003eSCPI Programmable for Repeatable Bench Work\u003c\/h3\u003e\n\u003cp\u003eThe UDP3303C is the programmable counterpart to the UDP3303A — same hardware, same protection, same CH3 logic-rail selector — with a back-panel USB-Device port and RS-232 added for SCPI control. Script the rails over USB or RS-232, capture readbacks, document the run, and repeat it tomorrow morning the same way. Programming accuracy holds inside ≤0.1% + 30 mV on voltage and ≤0.5% + 2 mA on current — fine enough for IoT sleep-mode current characterization, battery-charge cut-off testing, and any sweep that needs the setpoint to land where you asked it to. Five preset storage groups (M1–M5) and a Digital I\/O hardware ON\/OFF pin pair round out a programmable supply built for benches that have to behave the same way every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cdiv class=\"product-app-grid\"\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eR\u0026amp;D Bench \u0026amp; Prototyping\u003c\/h3\u003e\n\u003cp\u003eThree rails (two adjustable, one switchable digital) with SCPI control script the bench setup directly from your test framework. Linear topology and ≤1 mVrms ripple keep supply noise out of measurement on op-amp characterization, ADC reference rails, and sensor-bridge excitation work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eAutomated Test Lab Integration\u003c\/h3\u003e\n\u003cp\u003eSCPI over USB-Device or RS-232 integrates with LabVIEW, Python-VISA, and shell-driven test frameworks. Five preset storage groups keep frequently used test setups one command away. Programming accuracy ≤0.1% + 30 mV keeps automated sweeps repeatable across runs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eTeaching Labs \u0026amp; Automated Lab Exercises\u003c\/h3\u003e\n\u003cp\u003eFor curricula that introduce instrument automation alongside instrument operation, the UDP3303C lets a class go from manual front-panel work to scripted SCPI control without changing the instrument.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-app-card\"\u003e\n\u003ch3\u003eMixed-Signal Development\u003c\/h3\u003e\n\u003cp\u003eCH1 and CH2 power analog rails at low ripple; CH3 cycles through digital-side voltages without retuning. SCPI lets the test script raise or lower the digital rail while CH1\/CH2 hold the analog supplies steady — useful for power-sequencing and sleep-mode characterization on mixed-signal prototypes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUDP3303C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 programmable (CH1, CH2 adjustable; CH3 selectable) + CH4 USB charging output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH1, CH2 Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH1, CH2 Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH3 Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8V \/ 2.5V \/ 3.3V \/ 5V (±3%, fine-tunable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH3 Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e195W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH4 USB Charging Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V \/ 2A (front-panel USB charging output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (CV)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.01% + 3 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (CC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.2% + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.1% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.5% + 2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤1 mVrms (20Hz–20MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤3 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤300 ppm\/°C (V\/I)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries Mode (CH1+CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 60V (CH1+CH2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParallel Mode (CH1+CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 6A (CH1+CH2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEBTN LCD, 4-digit voltage + current per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgrammable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — SCPI over USB-Device or RS-232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB-Device, RS-232, Digital I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 preset storage groups (M1–M5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP (per-channel, configurable), OTP, keypad lock, shutdown memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 \/ 120 \/ 220 \/ 230V ±10%, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240 × 168 × 347 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in the box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat's the difference between the UDP3303A and the UDP3303C?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3303C adds SCPI programmability over USB-Device and RS-232. Hardware (channels, voltage, current, power, CH3 logic-rail selector, protection, display, dimensions) is otherwise identical. Choose the UDP3303A if your bench is knob-only; choose the UDP3303C if you need automated test integration. For 5A per adjustable channel instead of 3A, step up to the UDP3305C.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eDoes the UDP3303C have LAN?\u003c\/h3\u003e\n\u003cp\u003eNo. The UDP3303C's data interfaces are USB-Device (back-panel SCPI port for PC connection) and RS-232. If your workflow needs LAN with LXI\/web interface, the UDP3000S series adds it on the same linear-PSU platform. The Digital I\/O pin pair on the back panel handles hardware ON\/OFF — useful for external interlocks but not for data communication.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat is the front-panel USB port for?\u003c\/h3\u003e\n\u003cp\u003eIt's a 5V\/2A USB-A charging output (CH4) — for charging a phone or powering a USB-powered demo board. It is explicitly not a data interface. The SCPI data ports are on the back panel: USB-Device and RS-232.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eCan the UDP3303C run automated voltage\/current sweeps?\u003c\/h3\u003e\n\u003cp\u003eYes — SCPI control over USB-Device or RS-232 supports remote voltage and current setpoint commands plus readbacks, and the five preset storage groups (M1–M5) keep frequently used configurations available for fast recall. For complex programmable waveform output (list\/delayer functions), the UDP3000S series adds those capabilities on the same linear platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhy a linear supply instead of switching for SCPI work?\u003c\/h3\u003e\n\u003cp\u003eLinear topology produces fundamentally cleaner output — no switching frequency, no harmonic spurs, ripple under 1 mVrms. SCPI control gives you automation; linear regulation keeps the output clean enough for the precision measurements that automated test usually exists to take in the first place. The trade-off is lower efficiency and more heat, which at 195W bench-supply scale is not a meaningful constraint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat's included with the UDP3303C?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3303C ships with the instrument, power cord, USB communication cable (UT-D14), RS-232 communication line, alligator clip test leads, English user manual Ships from authorized US dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849347296,"sku":"181730080304X","price":365.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp3303c-3ch-195w-30v3a-programmable-linear-dc-power-supply-181730080304x-4787769.jpg?v=1786149197"},{"product_id":"udp6720-100w-60v-5a-programmable-dc-switching-power-supply","title":"UDP6720 100W 60V\/5A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6720 is a 100 W programmable DC switching power supply with a 60 V × 5 A wide-range output, RS-232 with full SCPI control, 600-group memory, list mode and OVP\/OCP\/OTP protection.\u003c\/h1\u003e\n\u003cp\u003eEntry-tier 100W class. The 60V × 5A envelope plus power ratio 3.0 makes one supply cover most 5V\/12V\/24V\/48V bench work without changing instruments.\u003c\/p\u003e\n\u003cp\u003eIt's built for a workbench that runs the same supply across product design, board debug, and deployed test fixtures — affordability where the spec sheet doesn't punish it, precision where the load demands it, and an interface direct enough that the next person sitting down doesn't need a manual.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eThe UDP6700 series fits the workflow we call \u003cstrong\u003eDesign. Debug. Deploy.\u003c\/strong\u003e The three-act cycle most engineering teams actually run a power supply through.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDesign\u003c\/strong\u003e, list mode and 600 memory groups let a planned voltage profile execute repeatably while the rest of the bench attends to capture and analysis.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDebug\u003c\/strong\u003e, OVP\/OCP\/OTP protections, remote sense compensation, and a 4-digit dual LED display make it safe to push a marginal load and see exactly what's happening at the terminals.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDeploy\u003c\/strong\u003e, RS-232 with full SCPI command coverage means the same supply that ran on the design bench can drop into a production rack and be controlled by the same scripts. One instrument, three phases, no relearning.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 W rated power, 60 V × 5 A wide envelope\u003c\/strong\u003e — Up to 60 V at 1.67 A or 20 V at 5 A — same 100 W envelope, no second instrument\u003c\/li\u003e\n\u003cli\u003eWide-range output with power ratio 3.0 — one supply covers V\/I combinations that would otherwise require two\u003c\/li\u003e\n\u003cli\u003eProgrammable list mode: 9 steps per list, 1 ms to 9999 s per step, repeat 1–9999 cycles\u003c\/li\u003e\n\u003cli\u003eTrigger delayer: 9 trigger groups, 1 ms to 9999 s per trigger\u003c\/li\u003e\n\u003cli\u003e600 memory groups (M1: 100 \/ M2: 100 \/ M3: 400) for stored output configurations\u003c\/li\u003e\n\u003cli\u003eOver-voltage, over-current, and over-temperature protection with set ranges 0–110% of rated\u003c\/li\u003e\n\u003cli\u003eRemote sense compensation for accurate output at the load terminals over long leads\u003c\/li\u003e\n\u003cli\u003eRS-232 with full SCPI command coverage; a software-only PC controller is included\u003c\/li\u003e\n\u003cli\u003eSmart fan: load- and temperature-controlled for low audible noise at light load\u003c\/li\u003e\n\u003cli\u003e4-digit dual LED display with simultaneous V and I readout\u003c\/li\u003e\n\u003cli\u003eOVP\/OCP thresholds set with a long-press on the V or I key — no menu dive\u003c\/li\u003e\n\u003cli\u003eKnob and direct numeric entry on the front panel; both work the same way\u003c\/li\u003e\n\u003cli\u003eSoftware calibration retains traceability without an internal trim-pot pass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWide-Range Output (Power Ratio 3.0)\u003c\/h2\u003e\n\u003cp\u003ePower ratio 3.0 means the rated output envelope can be redistributed between voltage and current as the load demands. Where a fixed-rectangle supply would force a tradeoff — buy enough volts \u003cem\u003eor\u003c\/em\u003e enough amps — the UDP6700 lets you trade one for the other along a constant-power curve. Most general-purpose bench work sits inside that envelope, so one supply does the work of two.\u003c\/p\u003e\n\u003cp\u003eThe exact V × I corners depend on rated power; the spec table below shows the maximum voltage at rated current and the maximum current at rated voltage for this SKU.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense Compensation\u003c\/h2\u003e\n\u003cp\u003eLong leads drop volts. At 5 A through 1 m of 18-AWG wire, the lead drop is around 100 mV — enough to sour a 3.3 V regulator test or starve a battery cycler. Remote sense routes the regulation feedback past the leads to the load terminals themselves, holding the programmed voltage where it actually matters.\u003c\/p\u003e\n\u003cp\u003eThe remote sense terminals are wired separately from the output terminals on the rear panel; the supply auto-detects sense connection and falls back to local sensing if the wires are removed.\u003c\/p\u003e\n\u003ch2\u003eOVP \/ OCP \/ OTP Protection\u003c\/h2\u003e\n\u003cp\u003eThree independent protections cover the most common ways a load fails: a short or low-impedance fault drives current up (OCP), a misconfigured DUT pulls voltage out of spec (OVP), or a sustained over-load heats the supply itself (OTP). All three trip the output off and display a fault state on the front panel.\u003c\/p\u003e\n\u003cp\u003eOVP and OCP thresholds are set with a long-press on the V or I key — set the threshold once, run the load. No menu dive, no nested submenu. OTP is internal and not user-configurable.\u003c\/p\u003e\n\u003ch2\u003eList Mode and Trigger Delayer\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eList mode\u003c\/strong\u003e runs a 9-step voltage and current sequence with each step held from 1 ms to 9999 s and the whole list repeated 1 to 9999 cycles. Useful for battery cycling, automotive cold-crank profiles, and any scripted sequence that needs to run unattended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrigger delayer\u003c\/strong\u003e fires 9 trigger groups with delays between 1 ms and 9999 s. Useful when an output transition needs to wait for an external event — DUT settling, fixture motion, an oven step — before moving to the next setting.\u003c\/p\u003e\n\u003ch2\u003e600 Memory Groups (M1 \/ M2 \/ M3)\u003c\/h2\u003e\n\u003cp\u003eThree memory banks store 100, 100, and 400 output configurations. M1 and M2 are typically used for active recipes (the configuration in the front-panel knob workflow); M3 holds 400 long-term recall configurations for products and DUTs the bench works on regularly. Each memory entry stores voltage setting, current setting, OVP and OCP thresholds, and the slope\/list state. Recall is a single front-panel keypress.\u003c\/p\u003e\n\u003ch2\u003eRS-232 with Full SCPI Command Coverage\u003c\/h2\u003e\n\u003cp\u003eRS-232 with full SCPI command set. Voltage and current setpoint, OVP\/OCP threshold, list configuration, memory recall, output enable, and readback all accessible from a host script. The included Windows PC software exposes the same commands through a GUI for users who don't want to write code.\u003c\/p\u003e\n\u003cp\u003eRS-232 is honest about what it is: one supply per host port, no LAN, no USBTMC. For multi-instrument benches with more than one programmable supply or for remote\/automated environments, the \u003cstrong\u003eUDP6900B series\u003c\/strong\u003e adds USB, LAN with web control, RS-485 with Modbus, and multi-machine daisy-chain.\u003c\/p\u003e\n\u003ch2\u003eThermal Derating\u003c\/h2\u003e\n\u003cp\u003eThe UDP6720 delivers full 100 W rated output at ambient temperatures up to about 30 °C. Above that, output power derates linearly to maintain internal junction temperatures inside the safe envelope. The derating curve below shows the exact relationship between ambient temperature and rated power for this SKU. Operating temperature range is 0–40 °C.\u003c\/p\u003e\n\u003cp\u003eThe smart fan adjusts speed automatically based on load and internal temperature; light-load operation is quiet, and the supply only ramps fan speed when thermal headroom requires it.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eIndustrial Maintenance Bench\u003c\/h3\u003e\n\u003cp\u003eReplaces the aging 30 V \/ 3 A bench supply with one that covers the same work plus 5 V to 60 V for everything an industrial control bench actually sees: 24 V relays, 12 V automotive subassemblies, 5 V logic. Memory recall stores per-DUT setups; OCP catches the shorted harness before the harness wins.\u003c\/p\u003e\n\u003ch3\u003eEmbedded R\u0026amp;D\u003c\/h3\u003e\n\u003cp\u003eProgrammable supply for board bring-up. Ramp slowly through a brown-out window with list mode; protect a marginal regulator with OVP set 5% above target; readback voltage and current to the host script over RS-232. The 100 W envelope is enough for most prototype boards short of motor or RF PA work.\u003c\/p\u003e\n\u003ch3\u003eProduction Test Station\u003c\/h3\u003e\n\u003cp\u003eFixture supply for end-of-line test on small assemblies. The 600 memory groups absorb the per-product configuration table; the front-panel UI keeps the operator interface simple; RS-232 exposes the same supply to the test executive. One supply, one configuration database, both UIs.\u003c\/p\u003e\n\u003ch3\u003eEducation and Lab Bench\u003c\/h3\u003e\n\u003cp\u003eTeaching lab supply with real protections, real list mode, real readback. Students see the same instrument architecture they'll see in industry — programmable, scripted, protected — without the price of a research-grade unit.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOutput Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax V at Rated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax I at Rated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.67 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProgramming Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.2% + 2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.2% + 2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.01% + 3 mV \/ I: ≤0.01% + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.01% + 3 mV \/ I: ≤0.01% + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: \u0026lt;2 mVrms \/ \u0026lt;20 mVpp \/ I: \u0026lt;5 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤100 ppm\/°C \/ I: ≤300 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDisplay \u0026amp; Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit, 4-digit dual LED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 (M1: 100, M2: 100, M3: 400)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9-step list with 1 ms–9999 s per step, repeat 1–9999 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Delayer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 trigger groups, 1 ms–9999 s per trigger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP \/ OCP \/ OTP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, OTP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOCP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eInterface \u0026amp; Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-232 + remote sense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eAC Input \u0026amp; Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240 VAC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤80% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−10 to 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePollution Degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePollution Degree 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmart fan (load- and temperature-controlled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical \u0026amp; Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87 × 174 × 255 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (in)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.43 × 6.85 × 10.04 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 kg (9.3 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECCN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A992.a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003cp\u003eEvery UDP6700 ships with a power cord, a quick-start guide, the Windows PC software (download), an RS-232 cable, and a calibration certificate. Test leads with alligator clips are an optional accessory and not included in the base configuration.\\\u003c\/p\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord (region-specific)\u003c\/li\u003e\n\u003cli\u003eRS-232 communication cable\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003cli\u003ePC software (free download)\u003c\/li\u003e\n\u003cli\u003eFactory calibration certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eOptional accessory:\u003c\/em\u003e Alligator-clip test lead set (sold separately).\u003c\/p\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eHow does the UDP6720 compare to the rest of the UDP6700 series?\u003c\/h3\u003e\n\u003cp\u003eFour SKUs cover four envelopes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUDP6720 — 100 W, 60 V × 5 A\u003c\/strong\u003e (this product). Entry-tier; general bench, R\u0026amp;D, low-current loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUDP6721 — 180 W, 60 V × 8 A.\u003c\/strong\u003e Same 60 V ceiling, more current. For higher-inrush loads or 24 V\/48 V work that needs 6–8 A continuous.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUDP6730 — 360 W, 40 V × 30 A.\u003c\/strong\u003e High-current. Motor drive, automotive 12 V\/24 V, large solenoid work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUDP6731 — 360 W, 80 V × 15 A.\u003c\/strong\u003e High-voltage. 48 V telecom, 60 V\/72 V battery, GaN\/SiC pre-driver.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll four share the same UI, the same SCPI command set, the same memory model, and the same RS-232 host interface; the only differences are the V × I envelope and the regulation\/ripple specs that follow from it.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6900B series is the next step up. Same form factor, same wide-range output philosophy, but adds USB and LAN with web control, RS-485 with Modbus, multi-machine daisy-chain, slope-mode output, auto-range mode, and a built-in DVM. If a single supply on a single host port satisfies the bench, the UDP6700 is the right choice; if the bench has multiple programmable supplies, needs LAN access, or runs scripted multi-instrument tests, UDP6900B is the right step up.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP3000C series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3000C series is multi-channel linear, not single-channel switching. If the bench needs two or three independent isolated outputs in one chassis (rail + bias + reference, for example), UDP3000C is the right tool. UDP6700 is the right tool when a single high-power output beats three medium-power outputs.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box?\u003c\/h3\u003e\n\u003cp\u003ePower cord, RS-232 cable, quick-start guide, factory calibration certificate. Windows PC software is a free download. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003ch3\u003eIs the chassis 1U rack-mountable?\u003c\/h3\u003e\n\u003cp\u003eNo. The chassis is 174 mm tall (about 6.85 inches), which is a desktop form factor — not 1U (44.45 mm). It will fit on a shelf in a standard 19-inch rack but will not mount in a 1U slot. UNI-T does not currently offer a rack-mount kit for the UDP6700 series.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePart of the UDP6700 programmable DC switching power supply series. See also UDP6721, UDP6730, UDP6731.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849314528,"sku":"181400100065X","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6720-100w-60v5a-programmable-dc-switching-power-supply-181400100065x-3072514.jpg?v=1786149196"},{"product_id":"udp4303s-4ch-297w-32v-3a-programmable-linear-dc-power-supply","title":"UDP4303S 4Ch 297W 32V\/3A Programmable Linear DC Power Supply","description":"\u003ch1\u003eThe UNI-T UDP4303S is a 4-channel, 297W precision programmable linear DC power supply with fully isolated outputs: two 0–32V\/3A channels, one 0–15V\/3A channel, and one 0–6V\/10A channel.\u003c\/h1\u003e\n\u003cp\u003eThe linear topology delivers exceptionally clean output with ripple under 350 µVrms — critical for sensitive analog circuits, precision sensor development, and any application where switching noise is unacceptable.\u003c\/p\u003e\n\u003cp\u003eWith 8 kSa\/s output sampling across all four channels, 1 µA current resolution, 1 ms programming time resolution, and a built-in waveform display, the UDP4303S provides real-time visibility into transient load behavior that competing supplies simply cannot match. Series\/parallel\/tracking modes, a controllable bleeder circuit, and comprehensive OVP\/OCP\/OTP protection round out a professional-grade instrument (3 years standard + 2 with free registration = 5 years total).\u003c\/p\u003e\n\u003ch3\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h3\u003e\n\u003cp\u003eAcross the design-debug-deploy lifecycle, the UDP4303S earns its bench position: \u003cstrong\u003eDesign.\u003c\/strong\u003e Four isolated channels source the rails and biases that an analog or precision-sensor design needs from first prototype, with linear topology that doesn’t inject switching noise into the measurement. \u003cstrong\u003eDebug.\u003c\/strong\u003e 8 kSa\/s output sampling and 1 µA current resolution expose transients and sleep-mode draws that lower-bandwidth supplies average away. \u003cstrong\u003eDeploy.\u003c\/strong\u003e List-mode profiles and SCPI\/LXI automation drive production characterization runs from the same instrument. Affordability meets precision — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Channel Fully Isolated Linear Output (297W)\u003c\/strong\u003e — CH1 \u0026amp; CH2: 0–32V\/3A, CH3: 0–15V\/3A, CH4: 0–6V\/10A. Complete electrical isolation between all channels eliminates crosstalk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Ripple \u0026amp; Noise\u003c\/strong\u003e — \u0026lt;350 µVrms\/2 mVpp output ripple (20 Hz–20 MHz). Linear topology means zero switching artifacts in the output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 µA Current Resolution\u003c\/strong\u003e — Low-current measurement mode across all four channels resolves down to 1 µA for precision IoT, sensor, and battery drain testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 kSa\/s Output Sampling\u003c\/strong\u003e — Real-time voltage\/current\/power waveform display on all channels captures transient load behavior and power-up sequences.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 ms Programming Time Resolution\u003c\/strong\u003e — Generate precise arbitrary waveforms with 512-group list output. Built-in waveform templates (sine, ramp, pulse) for fast setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\/Parallel\/Tracking Modes\u003c\/strong\u003e — One-touch CH1+CH2 combination: up to 64V in series or 6A in parallel with no external wiring. Tracking mode synchronizes channels automatically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControllable Bleeder Circuit\u003c\/strong\u003e — Active discharge pulls output to zero rapidly when disabled. Turn off for battery testing to prevent unintended discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigurable OCP Response (\u0026lt;3 ms)\u003c\/strong\u003e — Adjustable over-current protection delay from 0–10 seconds with fastest response under 3 ms. \"Setting Change\" mode prevents false triggers at power-on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Wire Remote Sense (All Channels)\u003c\/strong\u003e — Compensates for voltage drop in test leads on all four channels, with built-in sense protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB, LAN, RS-232, Digital I\/O\u003c\/strong\u003e — SCPI remote control, web browser interface, and digital trigger I\/O for automated test integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePrecision That Sets It Apart\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour Independent Channels (CH1 \u0026amp; CH2: 32V\/3A, CH3: 15V\/3A, CH4: 6V\/10A)\u003c\/strong\u003e\u003cbr\u003ePower multi-rail embedded designs from a single instrument — digital core, analog front-end, I\/O, and sensor power simultaneously. No external wiring needed for series\/parallel combinations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 µA Resolution Across All Channels\u003c\/strong\u003e\u003cbr\u003eThe low-current measurement mode samples down to 20 mA with 1 µA resolution on all four channels — measure sleep-mode current draw, standby leakage, and IoT sensor consumption directly from the power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 kSa\/s Waveform Capture\u003c\/strong\u003e\u003cbr\u003eSee exactly what your load is doing in real time. The built-in waveform display captures voltage, current, and power transients across all channels simultaneously — no external oscilloscope needed for power behavior analysis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReal-Time Output Waveform Display\u003c\/h3\u003e\n\u003cp\u003eThe UDP4303S puts a built-in waveform analyzer on every channel. At 8 kSa\/s across all four channels, you can observe voltage, current, and power behavior in real time — capturing inrush currents, transient load steps, and power-up sequences without connecting a separate oscilloscope. The waveform view displays min\/max\/offset values and supports adjustable time\/div and amplitude\/div scaling for detailed analysis.\u003c\/p\u003e\n\u003ch3\u003e1 ms Arbitrary Waveform Programming\u003c\/h3\u003e\n\u003cp\u003eProgram up to 512 voltage\/current\/time groups with 1 ms dwell time resolution — 100× finer than previous-generation supplies. Built-in waveform templates (sine, ramp, triangle, pulse, and more) let you create complex output profiles in seconds. Every channel, including series and parallel modes, supports list output for automated test sequences, battery charge simulation, and device stress testing.\u003c\/p\u003e\n\u003ch3\u003eProtect Your DUT with Configurable OCP\u003c\/h3\u003e\n\u003cp\u003eThe UDP4303S provides adjustable over-current protection with the fastest response time under 3 ms — fast enough to protect sensitive components from damage. The configurable OCP delay (0–10 seconds) prevents false triggers during power-on inrush. \"Setting Change\" mode detects overcurrent events only after the programmed delay, while \"Anyway\" mode monitors continuously. Combined with OVP and OTP, every channel is fully protected.\u003c\/p\u003e\n\u003ch2\u003eSix Display Styles\u003c\/h2\u003e\n\u003cp\u003eThe 4.3-inch color LCD offers six distinct display layouts — from a four-channel overview showing voltage, current, and power simultaneously, to a single-channel focused view with large digits for across-the-room readability. Choose the view that matches your workflow and switch between them instantly.\u003c\/p\u003e\n\u003ch3\u003eSeries \u0026amp; Parallel in One Touch\u003c\/h3\u003e\n\u003cp\u003eCombine CH1 and CH2 through the front-panel menu — no external wiring needed. Series mode delivers up to 64V, parallel mode provides up to 6A, all with the same regulation performance and protection features as independent operation. Channel tracking keeps CH1 and CH2 synchronized automatically when you need matched outputs.\u003c\/p\u003e\n\u003ch3\u003eControllable Bleeder Circuit\u003c\/h3\u003e\n\u003cp\u003eWhen you turn off a channel output, the controllable bleeder circuit rapidly discharges the output to zero — preventing residual voltage from reaching sensitive DUTs. For battery testing, turn the bleeder off to prevent the supply from draining the battery when the output is disabled. This flexibility makes the UDP4303S equally suited for both powered-circuit development and battery characterization.\u003c\/p\u003e\n\u003ch3\u003eFull-Channel Remote Sense with Protection\u003c\/h3\u003e\n\u003cp\u003eAll four channels support 4-wire remote sensing through rear-panel terminals, compensating for voltage drop in test leads to ensure the DUT sees exactly the programmed voltage. Unlike competing supplies, the UDP4303S includes sense line protection on all channels — guarding against reverse connection and overvoltage on the sense terminal.\u003c\/p\u003e\n\u003ch3\u003eComplete Data Management\u003c\/h3\u003e\n\u003cp\u003eThe built-in recorder captures voltage, current, and power data from all channels (including series and parallel modes) to a USB flash drive. Store up to 10 status files, 10 list files, and 10 delayer files locally, plus 5 quick-access presets for your most common configurations. Export everything via USB for analysis on your PC\u003c\/p\u003e\n\u003ch3\u003eFull Channel Isolation\u003c\/h3\u003e\n\u003cdiv\u003eAll four channels are fully electrically isolated from each other and from the communication interfaces. This means zero crosstalk between channels, freedom to connect outputs in any ground configuration, and safe series\/parallel combinations without worrying about ground loops or interference.\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eRear Panel Connectivity\u003c\/h3\u003e\n\u003cp\u003eThe rear panel provides output terminals and remote sense connections for all four channels, plus RS-232, USB Device, LAN, and a 4-line Digital I\/O port for trigger input\/output. The built-in web server lets you monitor and control the UDP4303S from any browser on your network — no dedicated software required. SCPI command support ensures compatibility with existing automated test frameworks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eAnalog \u0026amp; Mixed-Signal Development\u003c\/h3\u003e\n\u003cp\u003eLinear output with sub-350 µVrms ripple for op-amp circuits, precision ADC\/DAC testing, and low-noise signal chain development. Four isolated channels power multi-rail designs from one instrument — digital core, analog front-end, I\/O, and sensor rails simultaneously.\u003c\/p\u003e\n\u003ch3\u003eIoT \u0026amp; Battery Drain Analysis\u003c\/h3\u003e\n\u003cp\u003e1 µA current resolution on all channels measures sleep-mode consumption, standby leakage, and active-mode transitions. 8 kSa\/s sampling captures fast wake-up current spikes. The controllable bleeder circuit prevents unintended battery discharge during characterization.\u003c\/p\u003e\n\u003ch3\u003eEmbedded System Prototyping\u003c\/h3\u003e\n\u003cp\u003eIndependent isolated channels provide separate power rails with 1 ms programming resolution for power-up sequencing tests. 8 kSa\/s waveform monitoring shows real-time transient current demands during boot and operational state changes.\u003c\/p\u003e\n\u003ch3\u003eAutomated Production Test\u003c\/h3\u003e\n\u003cp\u003eSCPI over USB\/LAN\/RS-232 integrates into automated test systems. 512-group list output with 1 ms timing runs complex test profiles. Digital I\/O trigger input\/output coordinates with external equipment. Web server enables remote monitoring.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUDP4303S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4, fully electrically isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1 \u0026amp; CH2: 0–32V, CH3: 0–15V, CH4: 0–6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1 \u0026amp; CH2: 0–3A, CH3: 0–3A, CH4: 0–10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e297W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.01% + 2 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.01% + 250 µA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.01% + 2 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Ripple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;350 µVrms \/ 2 mVpp (20 Hz–20 MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;2 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransient Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;50 µs to ±15 mV settling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommand Processing Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: 1 mV, Current: 0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: 1 mV, Current: 0.1 mA (low current: 1 µA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSampling Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 kSa\/s (all channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Time Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 ms (512 groups max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy (1 yr)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: CH1–3 ±(0.03%+8 mV), CH4 ±(0.04%+4 mV)\u003cbr\u003eCurrent: CH1–3 ±(0.15%+5 mA), CH4 ±(0.15%+10 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (1 yr)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: CH1–3 ±(0.03%+8 mV), CH4 ±(0.08%+3 mV)\u003cbr\u003eCurrent: CH1–3 ±(0.15%+5 mA), CH4 ±(0.15%+10 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries Mode (CH1+CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 64V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParallel Mode (CH1+CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 6A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP (0–10s configurable, \u0026lt;3 ms fastest), OTP, Sense protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.3-inch TFT LCD (480×272), 6 display styles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB Host, USB Device, LAN, RS-232, Digital I\/O (4-line trigger), Sense terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeb Server\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in browser-based control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 status + 10 list + 10 delayer files (local), 5 presets, USB export\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100V\/120V\/220V\/230V ±10%, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W×H×D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e225 × 159.6 × 445 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to +40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eWhy choose a linear power supply over switching?\u003c\/h3\u003e\n\u003cp\u003eLinear supplies produce fundamentally cleaner output — no switching frequency harmonics, no EMI, and significantly lower ripple. For precision analog circuits, sensitive sensors, audio applications, and any measurement where µV-level noise matters, the difference is measurable. The tradeoff is lower efficiency and more heat, but for bench power at these power levels, that's typically acceptable.\u003c\/p\u003e\n\u003ch3\u003eHow does the 8 kSa\/s sampling compare to other bench supplies?\u003c\/h3\u003e\n\u003cp\u003eMost bench power supplies sample at 4 Sa\/s or less — you see averaged readings with no visibility into transients. At 8 kSa\/s across all four channels, the UDP4303S captures fast current spikes, inrush events, and load transients in real time on the built-in display. This is 2,000× faster than previous-generation supplies and eliminates the need for an external oscilloscope in many power characterization tasks.\u003c\/p\u003e\n\u003ch3\u003eCan I use the UDP4303S for battery drain testing?\u003c\/h3\u003e\n\u003cp\u003eYes — this is one of its strongest applications. The 1 µA current resolution on all channels captures sleep-mode consumption accurately. The controllable bleeder circuit is key: turn it off during battery testing so the supply doesn't drain the battery when the output is disabled. The 8 kSa\/s sampling captures fast wake-up transients that lower-speed supplies miss entirely.\u003c\/p\u003e\n\u003ch3\u003eWhat interfaces does the UDP4303S support for remote control?\u003c\/h3\u003e\n\u003cp\u003eUSB Device, LAN (with built-in web server), RS-232, and a 4-line Digital I\/O port for trigger input\/output. All interfaces support SCPI commands. The web server provides browser-based control from any device on your network without installing dedicated software.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UDP4303S?\u003c\/h3\u003e\n\u003cp\u003eThe UDP4303S ships with the instrument, power cord, USB data cable, 5-pin plug (3.81mm), two 8-pin plugs (5.08mm), factory calibration report Ships from authorized US dealer.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849380064,"sku":"181400100195X","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp4303s-4ch-297w-32v3a-programmable-linear-dc-power-supply-181400100195x-6215814.jpg?v=1786149197"},{"product_id":"udp6942b-360w-60v-15a-programmable-dc-switching-power-supply","title":"UDP6942B 360W 60V\/15A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6942B is a 360W programmable DC switching supply at 60V\/15A, sized for low-voltage motor drive testing, inverter input-stage qualification and DC-DC converter development where the 5A and 10A models in the family run short.\u003c\/h1\u003e\n\u003cp\u003eAuto-range gives flexible V\/I combinations within the rated 360W envelope. Full programmable interface set: USB Device, USB Host, RS-232, RS-485, LAN with web control, and external analog I\/O — with SCPI, Multi-SCPI, and Modbus RTU command support. Built-in 4½-digit DVM monitors a second voltage point on the DUT without an external instrument. Slope control configures rise\/fall rates independently in voltage-slope (VSR) and current-slope (ISR) modes for soft start\/stop. Remote sense (S+\/S−) compensates for IR drop on the test leads. List mode and delayer functions program up to 512 voltage\/current\/time groups, stored to internal Flash or USB.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDesign.\u003c\/strong\u003e Sourcing the bench supply for higher-current 60V power-electronics work is the first commit. 360 W at 60 V \/ 15 A with 1 mV \/ 0.1 mA resolution covers the envelope this work needs, with the four-wire sense and slope-controlled startup that DUT-protective work requires from the first turn-on. Programmable from the front panel or remotely — list mode, slope control, OVP\/OCP, and DVM are first-class controls, not buried menu options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDebug.\u003c\/strong\u003e At validation, the 4½-digit DVM and 512-group list mode replace a second DMM and an external sequencer. Capture power-up profiles, automate sweeps, and record DUT-side voltage drift while sourcing — without leaving the supply's front panel or rebuilding the test harness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDeploy.\u003c\/strong\u003e Production go\/no-go testing runs over LAN with SCPI, Multi-SCPI, or Modbus RTU. The web server gives a shared bench remote access without a host-software install. RS-485 multi-machine networking scales the station as the throughput requirement does. From first prototype to production verification — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e360W Auto-Range Output (0–60V, 0–15A)\u003c\/strong\u003e — Flexible V\/I combinations within rated power. One supply handles multiple test configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy \u0026amp; Low Ripple\u003c\/strong\u003e — 1 mV\/0.1 mA resolution with low ripple and noise for sensitive DUT testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP\/OCP Protection\u003c\/strong\u003e — Independent over-voltage and over-current protection with configurable thresholds protects devices under test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Mode \u0026amp; Delay Function\u003c\/strong\u003e — Program voltage\/current sequences with configurable timing for automated test profiles and battery charge simulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlope Control\u003c\/strong\u003e — Configurable rise\/fall rates for soft start\/stop, preventing inrush damage to sensitive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Sense\u003c\/strong\u003e — Four-wire sensing compensates for voltage drop in test leads, ensuring accurate voltage at the load terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In DVM\u003c\/strong\u003e — Independent digital voltmeter for monitoring a second voltage point without additional equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Remote Control \u0026amp; Multi-Machine\u003c\/strong\u003e — Browser-based control via LAN. Master\/slave communication for series\/parallel multi-unit configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFront-Panel Interface\u003c\/h2\u003e\n\u003cp\u003eA 4.3-inch true color LCD shows set voltage and current alongside actual output values, with output power computed and displayed in real time. The numeric keypad sets values directly without menu diving; the rotary encoder fine-tunes when a small adjustment is faster than typing. Soft-keys map to the function actually in use — list mode, slope, OVP\/OCP, or DVM — instead of burying them in nested menus. Output enable is a dedicated hardware button, always visible, never one click away from a keystroke mistake.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense\u003c\/h2\u003e\n\u003cp\u003eLong test leads drop voltage. At higher currents, the drop is no longer a rounding error — a 10 A draw across a meter of 16 AWG returns roughly 50 mV less to the load than the supply set. The UDP6900 series corrects for this with four-wire remote sense: connect the output's \u003cstrong\u003e+\u003c\/strong\u003e and \u003cstrong\u003e−\u003c\/strong\u003e terminals to the load through the current-carrying leads, then run a separate pair from \u003cstrong\u003eS+\u003c\/strong\u003e and \u003cstrong\u003eS−\u003c\/strong\u003e directly to the device under test. The supply servo's regulation point shifts from its own terminals to the load's terminals — and the 1 V SENSE compensation headroom keeps the rail accurate where it actually matters.\u003c\/p\u003e\n\u003ch2\u003eOver-Voltage\/Over-Current Protection (OVP\/OCP)\u003c\/h2\u003e\n\u003cp\u003eIndependent over-voltage and over-current thresholds, both set from the front panel. When either limit trips, the supply latches output off and posts the trigger on the LCD — the kind of unambiguous fault state that matters when a DUT failure during overnight characterization could otherwise damage hardware or lose a test run. Thresholds persist across power cycles and survive front-panel lock for unattended operation.\u003c\/p\u003e\n\u003ch2\u003eList Output and Delay Function\u003c\/h2\u003e\n\u003cp\u003eList mode programs up to 512 voltage\/current\/time groups, executed in sequence — useful for motor-drive bench setups where the supply walks through 12 V, 24 V, and 48 V system levels with controlled timing, for inductive load characterization with current-step profiles, or for solenoid-pulse reliability testing. The delay function programs output on\/off sequencing for cycling tests. Files save to Flash or USB in \u003ccode\u003e.lst.csv\u003c\/code\u003e and \u003ccode\u003e.dly.csv\u003c\/code\u003e formats — Excel-editable.\u003c\/p\u003e\n\u003ch2\u003eSlope Mode Options\u003c\/h2\u003e\n\u003cp\u003eThree configurable slope modes — Normal, Voltage Slope (VSR), and Current Slope (ISR). At 15 A continuous into inductive loads (motor windings, solenoid coils, transformer primaries), current-step transients can damage the DUT or trip the supply's OCP unnecessarily. ISR mode prevents both — ramping current at a configurable rate per second. VSR ramps voltage the same way for capacitive load startup.\u003c\/p\u003e\n\u003ch2\u003eAuto Range Functionality\u003c\/h2\u003e\n\u003cp\u003eWithin the 360 W envelope, the UDP6942B delivers 60 V at 6 A for high-side load testing, 15 A at 24 V for low-voltage motor drive prototyping, or any combination in between. The output reconfigures across the V\/I plane through the rated power, not a hardware range switch — making a single supply cover what would otherwise need a two-supply bench for inductive load development.\u003c\/p\u003e\n\u003ch2\u003eBuilt-in Digital Voltmeter (DVM)\u003c\/h2\u003e\n\u003cp\u003eA built-in 4½-digit voltmeter measures DC voltage on a separate rear-panel pair, displayed alongside the supply's own readbacks on the LCD. For a two-rail bench scenario — measuring the load's regulated DC at the same time the supply is sourcing it — the DVM eliminates a second instrument. Range is 0.001–65.000 V on the 60 V models, up to 160 V on the UDP6933B and UDP6953B.\u003c\/p\u003e\n\u003ch2\u003eMultiple Main Menu Options\u003c\/h2\u003e\n\u003cp\u003eThe main menu structure is shallow by design. Five top-level sections — Monitor, System Settings, User Group, Output Settings, Language — each one or two presses from the front panel. Monitor displays live V\/I\/P\/DVM with per-channel alarms when set conditions deviate. Output Settings configure operating mode, power-up output, and slope. System Settings hold backlight, sound, RS-232\/network, and a factory-default restore. The menu hierarchy never exceeds two levels — depth defeats front-panel work, and the UDP6900 doesn't ask the operator to memorize trees.\u003c\/p\u003e\n\u003ch2\u003eComputer Software and Remote Control\u003c\/h2\u003e\n\u003cp\u003eThe UDP6900 series ships with free PC control software — UNI-T's UDP9000 host application, common across the programmable PSU line. Set voltage and current remotely, log readbacks to disk, sequence list and delay programs, and automate complete characterization runs without writing a SCPI parser. For scripted environments, the supply speaks SCPI, Multi-SCPI, and Modbus RTU natively over USB-Device, RS-232, RS-485, or LAN — pick the bus that fits the test station.\u003c\/p\u003e\n\u003ch2\u003eMulti-Machine Communication\u003c\/h2\u003e\n\u003cp\u003eRS-485 networking links multiple UDP6900 supplies to a single host. Master\/slave configurations enable series-stack for higher voltage or parallel-stack for higher current — useful for multi-rail bench setups or when a single test station needs more total power than one chassis provides. One SCPI session, many supplies, synchronized output.\u003c\/p\u003e\n\u003ch2\u003eWeb Control\u003c\/h2\u003e\n\u003cp\u003eLAN connection brings up an embedded web server — open the supply's IP in any browser to set parameters, run list and delay programs, and configure system settings. No vendor application install on the host machine, no driver headache when the bench runs Linux or a tablet workstation. For shared lab benches and remote-monitored automation, the browser interface is often the cleanest path.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eMotor Drive Bench (15A Class)\u003c\/h3\u003e\n\u003cp\u003e15 A at 60 V handles 12V\/24V\/48V brushless motor controller testing, low-voltage inverter input-stage characterization, and DC-DC converter dev where 5A and 10A models run short. Slope control prevents inrush damage to motor drivers during start-up testing.\u003c\/p\u003e\n\u003ch3\u003eBattery Charging \u0026amp; Test\u003c\/h3\u003e\n\u003cp\u003eProgrammable CC\/CV profiles simulate charging curves; list mode runs multi-step charge\/discharge sequences for battery characterization. 15A current capability matches the charge rates of e-bike and small-EV battery packs.\u003c\/p\u003e\n\u003ch3\u003ePower Electronics Test Bench\u003c\/h3\u003e\n\u003cp\u003e15A at 60V suits gate-driver supplies, low-voltage point-of-load testing, and the bench currents that smaller models can't deliver. Auto-range gives flexible V\/I combinations within the 360W envelope.\u003c\/p\u003e\n\u003ch3\u003eSmall-Team Test Lab\u003c\/h3\u003e\n\u003cp\u003eFull SCPI over USB, RS-232, RS-485, and LAN integrates into VISA-based test frameworks. Multi-machine RS-485 supports synchronized series\/parallel multi-unit configurations. Web control via browser for remote monitoring.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–60 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.05% + 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.05% + 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mV (\u0026lt; 10 V), 1 mV (\u0026gt; 10 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA (\u0026lt; 10 A), 1 mA (\u0026gt; 10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.03% + 5 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.03% + 5 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 15 mVp-p\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 8 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Sense Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e215 × 88 × 373.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eWhat does auto-range mean?\u003c\/h3\u003e\n\u003cp\u003eAuto-range means the supply delivers any voltage\/current combination within the rated 360W envelope. The UDP6942B can output 60V at reduced current or 15A at reduced voltage — the power limit is the constraint, not fixed V\/I maximums independently.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the UDP6700 and UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThis family (UDP6900B) sits above the UDP6700, adding auto-range output, slope control, built-in DVM, web control over LAN, RS-485 for multi-machine networking, USB Device, Modbus RTU, and external analog control. UDP6700 provides the core CV\/CC + list-mode + remote-compensation feature set with RS-232 SCPI at a lower price.\u003c\/p\u003e\n\u003ch3\u003eCan I connect multiple UDP6900B units for higher power?\u003c\/h3\u003e\n\u003cp\u003eYes. Multi-machine communication via RS-485 enables master\/slave configurations — connect units in series for higher voltage or parallel for higher current, controlled from a single master or via SCPI commands.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UDP6942B?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6942B ships with the instrument, power cable Test leads and sense leads available separately.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849412832,"sku":"181400100158X","price":899.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6942b-360w-60v15a-programmable-dc-switching-power-supply-181400100158x-8921801.jpg?v=1786149197"},{"product_id":"utp3305-ii-3ch-335w-32v-5a-linear-dc-power-supply","title":"UTP3305-II 3Ch 335W 32V\/5A Linear DC Power Supply","description":"\u003ch1\u003eThe UTP3305-II is the precision-grade refresh of UNI-T's UTP3305 platform — the same 335W three-channel linear topology, with a four-digit LED display reading 10 mV \/ 1 mA, tighter regulation specs and a temperature-controlled cooling fan.\u003c\/h1\u003e\n\u003cp\u003eTwo adjustable channels deliver 0–32V at 0–5A; a third channel provides a fixed 5V at 3A for logic-level power. Knobs, banana jacks, OVP\/OCP via current-limit protection, and a front panel that doesn't require a manual to operate.\u003c\/p\u003e\n\u003cp\u003eLinear regulation keeps output ripple under 1mVrms with no switching artifacts, no EMI signature competing with the circuit you're actually trying to characterize. CH1 and CH2 combine in series (up to 64V) or parallel (up to 10A). Load regulation tightens to CV \u0026lt;0.01% + 3 mV — visible improvement when the load steps and the rail has to hold steady.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Channels, 335W Total\u003c\/strong\u003e — CH1 and CH2: 0–32V \/ 0–5A adjustable. CH3: fixed 5V \/ 3A for logic-level power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Digit LED Display, 10 mV \/ 1 mA Resolution\u003c\/strong\u003e — Per-channel voltage and current readouts that read down to 10 mV and 1 mA — fine enough to actually see what the load is doing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTighter Regulation\u003c\/strong\u003e — Load regulation CV \u0026lt;0.01% + 3 mV \/ CC \u0026lt;0.2% + 3 mA. Tracking accuracy ±(0.1% of reading + 30 mV).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Topology, ≤1 mVrms Ripple\u003c\/strong\u003e — Clean DC output with no switching frequency, no harmonic spurs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto CV\/CC Crossover\u003c\/strong\u003e — Automatic transition between constant-voltage and constant-current operation when the load steps, with current limit protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries and Parallel Modes\u003c\/strong\u003e — Combine CH1+CH2 for up to 64V series or 10A parallel — front-panel selectable, no external wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature-Controlled Cooling Fan\u003c\/strong\u003e — Fan speed scales with internal temperature. Quiet at light loads, full airflow when the supply is working hard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput ON\/OFF Control\u003c\/strong\u003e — Front-panel master output button keeps you in command of when current actually leaves the supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnob-and-Button Operation\u003c\/strong\u003e — No firmware to update, no PC software to install, no LAN port to configure. Front-panel only — designed to behave the same way on day one and year five.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe UTP3305-II keeps the operational simplicity of the UTP3305 — knobs, banana jacks, output ON\/OFF — and tightens the parts that matter when your circuit actually responds to the supply. Resolution improves from 100 mV to 10 mV; current resolution drops from 10 mA to 1 mA. Load regulation moves from CV ≤1×10⁻⁴ + 3 mV to CV \u0026lt;0.01% + 3 mV (functionally identical) but with the added programming-accuracy spec ±(0.1% of reading + 30 mV) that the original UTP3305 doesn't publish.\u003c\/p\u003e\n\u003cp\u003eThe temperature-controlled cooling fan is a quality-of-life upgrade that matters in classrooms and small-team R\u0026amp;D rooms: the supply is genuinely quiet at moderate loads, and only spins up when you're actually running it hard. The four-digit LED display replaces the original three-digit dual display — same operational language, finer readout.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eTeaching Labs \u0026amp; Trade Schools\u003c\/h3\u003e\n\u003cp\u003ePer-station cost that lets a 20-bench classroom stay inside budget, with the precision display students actually need to see what's happening on the rail. Quiet fan operation makes a 30-station lab livable.\u003c\/p\u003e\n\u003ch3\u003eAnalog Bench Development\u003c\/h3\u003e\n\u003cp\u003e10 mV \/ 1 mA resolution shows the small effects that 100 mV \/ 10 mA hides — supply load lines, sensor bias drift, op-amp quiescent current. Dual 0–32V \/ 5A adjustable channels with tight load regulation power op-amp ±supplies, audio amplifiers, and balanced analog stages.\u003c\/p\u003e\n\u003ch3\u003eService \u0026amp; Repair\u003c\/h3\u003e\n\u003cp\u003eReliable bench supply for board-level service work with the resolution to set rails accurately and the current capability to drive higher-power loads. CV\/CC auto crossover handles unknown loads safely.\u003c\/p\u003e\n\u003ch3\u003eMixed-Signal Prototyping\u003c\/h3\u003e\n\u003cp\u003eTwo adjustable rails with master-slave-style behavior in tracking, plus a fixed 5V CH3 for logic, covers most prototyping needs in a single instrument. Linear output stays clean across the full range.\u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUTP3305-II\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 (CH1, CH2 adjustable; CH3 fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1, CH2: 0–32V\u003cbr\u003eCH3: 5V (fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1, CH2: 0–5A\u003cbr\u003eCH3: 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e335W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCV \u0026lt;0.01% + 3 mV\u003cbr\u003eCC \u0026lt;0.2% + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: ≤1 mVrms\u003cbr\u003eCurrent: ≤3 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTracking Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±(0.1% of reading + 30 mV)\u003cbr\u003eCC ±(0.3% of reading + 5 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit LED, voltage and current per channel (4 windows)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndependent, Series, Parallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTemperature-controlled fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent limit protection with auto CV\/CC crossover, output ON\/OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReliability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMTBF ≥ 2,000 hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115V \/ 230V AC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W×D×H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e319 × 146 × 226 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eDoes the UTP3305-II have USB or SCPI?\u003c\/h3\u003e\n\u003cp\u003eNo. UNI-T's HQ ordering description literally lists this model as \"Non-Programmable Linear DC Power Supply\" — there is no USB data interface, no LAN, no SCPI command set, no PC software. If your workflow needs SCPI control, the programmable counterparts in the UNI-T linear PSU family are the UDP3303C and UDP3305C (USB + RS-232) and the UDP3000S series (USB + LAN + LXI with web interface).\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the UTP3305 and UTP3305-II?\u003c\/h3\u003e\n\u003cp\u003eThe \"-II\" is the precision-grade refresh of the same 335W \/ 3-channel linear platform: voltage and current resolution improve from 100 mV \/ 10 mA to 10 mV \/ 1 mA, the display moves from 3-digit to 4-digit per channel, and the supply gains a temperature-controlled cooling fan and a published programming-accuracy spec. Output ratings, ripple, and feature set are otherwise comparable. Choose -II for finer readout and quieter operation; choose the original UTP3305 if pricing is the dominant factor.\u003c\/p\u003e\n\u003ch3\u003eWhy a linear supply instead of switching?\u003c\/h3\u003e\n\u003cp\u003eLinear topology produces fundamentally cleaner output — no switching frequency, no harmonic spurs, ripple under 1 mVrms. For analog bench work, audio circuits, low-noise sensor development, and any precision measurement where supply noise shows up in the result, the difference is measurable. The trade-off is lower efficiency and more heat, which at this power level on a bench is not a meaningful constraint.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UTP3305-II?\u003c\/h3\u003e\n\u003cp\u003eThe UTP3305-II ships with the instrument, a power cord conforming to the destination country, test output line, English user manual Ships from authorized US dealer.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849445600,"sku":"181730080312X","price":262.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/utp3305-ii-3ch-335w-32v5a-linear-dc-power-supply-181730080312x-9265156.png?v=1786149196"},{"product_id":"udp6730-360w-40v-30a-programmable-dc-switching-power-supply","title":"UDP6730 360W 40V\/30A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6730 is a 360 W programmable DC switching power supply with a 40 V × 30 A wide-range output, RS-232 with full SCPI control, 600-group memory, list mode, and OVP\/OCP\/OTP protection.\u003c\/h1\u003e\n\u003cp\u003eHigh-current 360W class. The 40V × 30A envelope is sized for motor drives, automotive 12V\/24V systems, battery and EV-component bench work, and any load where the bottleneck is amps not volts.\u003c\/p\u003e\n\u003cp\u003eIt's built for a workbench that runs the same supply across product design, board debug, and deployed test fixtures — affordability where the spec sheet doesn't punish it, precision where the load demands it, and an interface direct enough that the next person sitting down doesn't need a manual.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eThe UDP6700 series fits the workflow we call \u003cstrong\u003eDesign. Debug. Deploy.\u003c\/strong\u003e — the three-act cycle most engineering teams actually run a power supply through.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDesign\u003c\/strong\u003e, list mode and 600 memory groups let a planned voltage profile execute repeatably while the rest of the bench attends to capture and analysis.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDebug\u003c\/strong\u003e, OVP\/OCP\/OTP protections, remote sense compensation, and a 4-digit dual LED display make it safe to push a marginal load and see exactly what's happening at the terminals.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDeploy\u003c\/strong\u003e, RS-232 with full SCPI command coverage means the same supply that ran on the design bench can drop into a production rack and be controlled by the same scripts. One instrument, three phases, no relearning.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e360 W rated power, 40 V × 30 A wide envelope\u003c\/strong\u003e — Up to 40 V at 9 A or 12 V at 30 A — same 360 W envelope, no second instrument\u003c\/li\u003e\n\u003cli\u003eWide-range output with power ratio 3.0 — one supply covers V\/I combinations that would otherwise require two\u003c\/li\u003e\n\u003cli\u003eProgrammable list mode: 9 steps per list, 1 ms to 9999 s per step, repeat 1–9999 cycles\u003c\/li\u003e\n\u003cli\u003eTrigger delayer: 9 trigger groups, 1 ms to 9999 s per trigger\u003c\/li\u003e\n\u003cli\u003e600 memory groups (M1: 100 \/ M2: 100 \/ M3: 400) for stored output configurations\u003c\/li\u003e\n\u003cli\u003eOver-voltage, over-current, and over-temperature protection with set ranges 0–110% of rated\u003c\/li\u003e\n\u003cli\u003eRemote sense compensation for accurate output at the load terminals over long leads\u003c\/li\u003e\n\u003cli\u003eRS-232 with full SCPI command coverage; a software-only PC controller is included\u003c\/li\u003e\n\u003cli\u003eSmart fan: load- and temperature-controlled for low audible noise at light load\u003c\/li\u003e\n\u003cli\u003e4-digit dual LED display with simultaneous V and I readout\u003c\/li\u003e\n\u003cli\u003eOVP\/OCP thresholds set with a long-press on the V or I key — no menu dive\u003c\/li\u003e\n\u003cli\u003eKnob and direct numeric entry on the front panel; both work the same way\u003c\/li\u003e\n\u003cli\u003eSoftware calibration retains traceability without an internal trim-pot pass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWide-Range Output (Power Ratio 3.0)\u003c\/h2\u003e\n\u003cp\u003ePower ratio 3.0 means the rated output envelope can be redistributed between voltage and current as the load demands. Where a fixed-rectangle supply would force a tradeoff — buy enough volts \u003cem\u003eor\u003c\/em\u003e enough amps — the UDP6700 lets you trade one for the other along a constant-power curve. Most general-purpose bench work sits inside that envelope, so one supply does the work of two.\u003c\/p\u003e\n\u003cp\u003eThe exact V × I corners depend on rated power; the spec table below shows the maximum voltage at rated current and the maximum current at rated voltage for this SKU.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense Compensation\u003c\/h2\u003e\n\u003cp\u003eLong leads drop volts. At 5 A through 1 m of 18-AWG wire, the lead drop is around 100 mV — enough to sour a 3.3 V regulator test or starve a battery cycler. Remote sense routes the regulation feedback past the leads to the load terminals themselves, holding the programmed voltage where it actually matters.\u003c\/p\u003e\n\u003cp\u003eThe remote sense terminals are wired separately from the output terminals on the rear panel; the supply auto-detects sense connection and falls back to local sensing if the wires are removed.\u003c\/p\u003e\n\u003ch2\u003eOVP \/ OCP \/ OTP Protection\u003c\/h2\u003e\n\u003cp\u003eThree independent protections cover the most common ways a load fails: a short or low-impedance fault drives current up (OCP), a misconfigured DUT pulls voltage out of spec (OVP), or a sustained over-load heats the supply itself (OTP). All three trip the output off and display a fault state on the front panel.\u003c\/p\u003e\n\u003cp\u003eOVP and OCP thresholds are set with a long-press on the V or I key — set the threshold once, run the load. No menu dive, no nested submenu. OTP is internal and not user-configurable.\u003c\/p\u003e\n\u003ch2\u003eList Mode and Trigger Delayer\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eList mode\u003c\/strong\u003e runs a 9-step voltage and current sequence with each step held from 1 ms to 9999 s and the whole list repeated 1 to 9999 cycles. Useful for battery cycling, automotive cold-crank profiles, and any scripted sequence that needs to run unattended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrigger delayer\u003c\/strong\u003e fires 9 trigger groups with delays between 1 ms and 9999 s. Useful when an output transition needs to wait for an external event — DUT settling, fixture motion, an oven step — before moving to the next setting.\u003c\/p\u003e\n\u003ch2\u003e600 Memory Groups (M1 \/ M2 \/ M3)\u003c\/h2\u003e\n\u003cp\u003eThree memory banks store 100, 100, and 400 output configurations. M1 and M2 are typically used for active recipes (the configuration in the front-panel knob workflow); M3 holds 400 long-term recall configurations for products and DUTs the bench works on regularly.\u003c\/p\u003e\n\u003cp\u003eEach memory entry stores voltage setting, current setting, OVP and OCP thresholds, and the slope\/list state. Recall is a single front-panel keypress.\u003c\/p\u003e\n\u003ch2\u003eRS-232 with Full SCPI Command Coverage\u003c\/h2\u003e\n\u003cp\u003eRS-232 with full SCPI command set. Voltage and current setpoint, OVP\/OCP threshold, list configuration, memory recall, output enable, and readback all accessible from a host script. The included Windows PC software exposes the same commands through a GUI for users who don't want to write code.\u003c\/p\u003e\n\u003cp\u003eRS-232 is honest about what it is: one supply per host port, no LAN, no USBTMC. For multi-instrument benches with more than one programmable supply or for remote\/automated environments, the \u003cstrong\u003eUDP6900B series\u003c\/strong\u003e adds USB, LAN with web control, RS-485 with Modbus, and multi-machine daisy-chain.\u003c\/p\u003e\n\u003ch2\u003eThermal Derating\u003c\/h2\u003e\n\u003cp\u003eThe UDP6730 delivers full 360 W rated output at ambient temperatures up to about 30 °C. Above that, output power derates linearly to maintain internal junction temperatures inside the safe envelope. The derating curve below shows the exact relationship between ambient temperature and rated power for this SKU. Operating temperature range is 0–40 °C.\u003c\/p\u003e\n\u003cp\u003eThe smart fan adjusts speed automatically based on load and internal temperature; light-load operation is quiet, and the supply only ramps fan speed when thermal headroom requires it.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eMotor Drive and Power Electronics Bench\u003c\/h3\u003e\n\u003cp\u003eThe 30 A current rating is sized for motor drive R\u0026amp;D. Brushless DC motors in the 100–300 W class draw real current at 12–24 V; 30 A is enough to push them under load while leaving headroom for inrush. List mode runs a startup profile; OCP catches the locked-rotor case before the controller does.\u003c\/p\u003e\n\u003ch3\u003eAutomotive 12V\/24V System Test\u003c\/h3\u003e\n\u003cp\u003eCold-crank, voltage-dip, and reverse-battery profiles need both volts and amps. The 40 V × 30 A envelope covers automotive subsystem test where the DUT is a vehicle module pulling double-digit amps from a stable but configurable rail.\u003c\/p\u003e\n\u003ch3\u003eBattery and EV Component Bench\u003c\/h3\u003e\n\u003cp\u003eSource side of battery cycling for single-cell and small-pack work in the 12 V \/ 24 V \/ 36 V class. Pair with a programmable load on the sink side. List mode runs the charge profile; OVP enforces the per-chemistry voltage ceiling.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Maintenance, High-Current\u003c\/h3\u003e\n\u003cp\u003eFor maintenance benches that inherited high-current loads — solenoid arrays, magnetic clutches, large industrial relays. 30 A is enough for most of them; one supply replaces the dual-supply parallel rig.\u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOutput Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax V at Rated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax I at Rated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.00 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProgramming Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.03% + 30 mV \/ I: ≤0.03% + 30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.03% + 30 mV \/ I: ≤0.03% + 30 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: \u0026lt;12 mVrms \/ \u0026lt;120 mVpp \/ I: \u0026lt;72 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤100 ppm\/°C \/ I: ≤300 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDisplay \u0026amp; Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit, 4-digit dual LED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 (M1: 100, M2: 100, M3: 400)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9-step list with 1 ms–9999 s per step, repeat 1–9999 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Delayer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 trigger groups, 1 ms–9999 s per trigger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP \/ OCP \/ OTP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, OTP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOCP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eInterface \u0026amp; Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-232 + remote sense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eAC Input \u0026amp; Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240 VAC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤80% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−10 to 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePollution Degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePollution Degree 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmart fan (load- and temperature-controlled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical \u0026amp; Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87 × 174 × 255 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (in)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.43 × 6.85 × 10.04 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.4 kg (11.9 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECCN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A992.a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cp\u003eEvery UDP6700 ships with a power cord, a quick-start guide, the Windows PC software (download), an RS-232 cable, and a calibration certificate. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord (region-specific)\u003c\/li\u003e\n\u003cli\u003eRS-232 communication cable\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003cli\u003ePC software (free download)\u003c\/li\u003e\n\u003cli\u003eFactory calibration certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eUDP6730 vs UDP6731: High-current vs. High-voltage\u003c\/h3\u003e\n\u003cp\u003eBoth are 360 W. UDP6730 is 40 V × 30 A — the high-current side. UDP6731 is 80 V × 15 A — the high-voltage side. Choose UDP6730 when the load is 12 V or 24 V and the bottleneck is amps (motor drive, automotive accessory, large solenoid). Choose UDP6731 when the load is 48 V or 60 V or 72 V and the bottleneck is volts (telecom, battery pack, GaN\/SiC bus). At the boundary (24–40 V loads under 15 A), either works; UDP6730 has lower per-amp ripple specs at that operating point.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6900B series is the next step up. Same form factor, same wide-range output philosophy, but adds USB and LAN with web control, RS-485 with Modbus, multi-machine daisy-chain, slope-mode output, auto-range mode, and a built-in DVM. If a single supply on a single host port satisfies the bench, the UDP6700 is the right choice; if the bench has multiple programmable supplies, needs LAN access, or runs scripted multi-instrument tests, UDP6900B is the right step up.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP3000C series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3000C series is multi-channel linear, not single-channel switching. If the bench needs two or three independent isolated outputs in one chassis (rail + bias + reference, for example), UDP3000C is the right tool. UDP6700 is the right tool when a single high-power output beats three medium-power outputs.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box?\u003c\/h3\u003e\n\u003cp\u003ePower cord, RS-232 cable, quick-start guide, factory calibration certificate. Windows PC software is a free download. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003ch3\u003eIs the chassis 1U rack-mountable?\u003c\/h3\u003e\n\u003cp\u003eNo. The chassis is 174 mm tall (about 6.85 inches), which is a desktop form factor — not 1U (44.45 mm). It will fit on a shelf in a standard 19-inch rack but will not mount in a 1U slot. UNI-T does not currently offer a rack-mount kit for the UDP6700 series.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePart of the UDP6700 programmable DC switching power supply series. See also UDP6721, UDP6730, UDP6731.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849478368,"sku":"181400100112X","price":419.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6730-360w-40v30a-programmable-dc-switching-power-supply-181400100112x-4035465.jpg?v=1786149195"},{"product_id":"utp3303-3ch-207w-32v-3a-linear-dc-power-supply","title":"UTP3303 3Ch 207W 32V\/3A Linear DC Power Supply","description":"\u003ch1\u003eThe UTP3303 is a 207W three-channel linear bench supply for the kind of bench work where the supply itself shouldn't need its own learning curve.\u003c\/h1\u003e\n\u003cp\u003eTwo adjustable channels deliver 0–32V at 0–3A; a third channel provides a fixed 5V at 3A for logic-level power. Knobs, banana jacks, OVP\/OCP via current-limit protection, and the kind of front panel a first-year student gets back to default settings in under 30 seconds.\u003c\/p\u003e\n\u003cp\u003eLinear regulation keeps output ripple under 1mVrms — no switching artifacts, no EMI signature competing with the circuit you're actually trying to characterize. CH1 and CH2 combine in series (up to 64V) or parallel (up to 6A), and a master-slave tracking mode keeps CH1 and CH2 synchronized when matched rails are needed for dual-supply analog work.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Channels, 207W Total\u003c\/strong\u003e — CH1 and CH2: 0–32V \/ 0–3A adjustable. CH3: fixed 5V \/ 3A for logic-level power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Topology, ≤1 mVrms Ripple\u003c\/strong\u003e — Clean DC output with no switching frequency, no harmonic spurs, and load regulation of CV ≤1×10⁻⁴ + 3 mV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto CV\/CC Crossover with Current Limit Protection\u003c\/strong\u003e — The supply transitions automatically between constant-voltage and constant-current operation when the load steps, protecting both the DUT and the supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries and Parallel Modes\u003c\/strong\u003e — Combine CH1+CH2 for up to 64V series or 6A parallel — front-panel selectable, no external wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH1\/CH2 Master-Slave Tracking\u003c\/strong\u003e — Tracking mode synchronizes CH1 and CH2 for matched-rail testing (op-amp ±supplies, balanced analog stages, dual-supply mixed-signal designs).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Bit Voltage and Current Dual Display\u003c\/strong\u003e — Independent voltage and current readouts per channel. No menus, no hidden settings — what you see is what the channel is doing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput ON\/OFF Control\u003c\/strong\u003e — Front-panel master output button keeps you in command of when current actually leaves the supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnob-and-Button Operation\u003c\/strong\u003e — No firmware to update, no PC software to install, no LAN port to configure. Front-panel only — designed to behave the same way on day one and year five.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBench Power That Stays Out of the Way\u003c\/h2\u003e\n\u003cp\u003eThe UTP3303 is the supply you put on a bench when the day's work is upstream of the power supply — circuit prototyping, board-level service, instructional labs where the lesson is signals or amplifiers, not procurement of a programmable instrument. There's no SCPI command set to learn, no firmware path to get wrong before a class starts, and no LAN configuration page to ask IT about. There's a knob, a display, and CV\/CC auto-crossover protection that doesn't need a settings menu.\u003c\/p\u003e\n\u003cp\u003eFor teaching labs and trade-school programs running 10–30 stations, this is the operational pitch: every student gets the same instrument with the same workflow, every shift. For service shops and small-team R\u0026amp;D benches, it's the supply you reach for when you don't want to think about the supply.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eTeaching Labs \u0026amp; Trade Schools\u003c\/h3\u003e\n\u003cp\u003ePer-station cost that lets a 20-bench classroom stay inside budget. Knob-and-button operation matches the curriculum-relevant skill: students learn measurement, not menu navigation.\u003c\/p\u003e\n\u003ch3\u003eAnalog Bench Development\u003c\/h3\u003e\n\u003cp\u003eDual 0–32V adjustable channels with master-slave tracking power op-amp ±supplies, audio circuits, and balanced analog front-ends from one instrument. Ripple under 1 mVrms keeps supply noise out of the measurement.\u003c\/p\u003e\n\u003ch3\u003eService \u0026amp; Repair\u003c\/h3\u003e\n\u003cp\u003eReliable everyday bench supply for board-level service work. CV\/CC auto crossover handles unknown loads safely, and the fixed 5V CH3 covers logic-level powering on legacy boards.\u003c\/p\u003e\n\u003ch3\u003eMaker \u0026amp; Hobbyist Workshops\u003c\/h3\u003e\n\u003cp\u003eThree-channel linear bench supply at a price that makes sense for a workshop that isn't doing automated production test. Clean output, predictable behavior, no software stack to maintain.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUTP3303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 (CH1, CH2 adjustable; CH3 fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1, CH2: 0–32V\u003cbr\u003eCH3: 5V (fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1, CH2: 0–3A\u003cbr\u003eCH3: 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e207W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCV ≤1×10⁻⁴ + 3 mV\u003cbr\u003eCC ≤2×10⁻⁴ + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: ≤1 mVrms\u003cbr\u003eCurrent: ≤3 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Regulation Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCV: 100 mV (typical)\u003cbr\u003eCC: 10 mA (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTracking Bias (CH1\/CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5×10⁻³ + 10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-bit voltage and current dual display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndependent, Series, Parallel, CH1\/CH2 Master-Slave Tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent limit protection with auto CV\/CC crossover, output ON\/OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReliability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMTBF ≥ 2,000 hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115V \/ 230V AC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W×D×H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e260 × 170 × 315 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.7 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eCE\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eDoes the UTP3303 have USB or SCPI?\u003c\/h3\u003e\n\u003cp\u003eNo. The UTP3303 is a fully analog, knob-and-button bench supply — no USB data interface, no LAN, no SCPI command set, no PC software. If your workflow needs SCPI control, the programmable counterparts in the UNI-T linear PSU family are the UDP3303C and UDP3305C (USB + RS-232) and the UDP3000S series (USB + LAN + LXI with web interface).\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the UTP3303 and the UTP3305?\u003c\/h3\u003e\n\u003cp\u003eOutput current. UTP3303 delivers 0–3A on CH1 and CH2 (207W total). UTP3305 delivers 0–5A on CH1 and CH2 (335W total). Voltage range, ripple, regulation, display, and feature set are otherwise identical between the two. Choose UTP3305 if you need to source above 3A on a single rail.\u003c\/p\u003e\n\u003ch3\u003eWhy a linear supply instead of switching?\u003c\/h3\u003e\n\u003cp\u003eLinear topology produces fundamentally cleaner output — no switching frequency, no harmonic spurs, ripple under 1 mVrms. For analog bench work, audio circuits, low-noise sensor development, and any precision measurement where supply noise shows up in the result, the difference is measurable. The trade-off is lower efficiency and more heat, which at this power level on a bench is not a meaningful constraint.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UTP3303?\u003c\/h3\u003e\n\u003cp\u003eThe UTP3303 ships with the instrument, power cord, output cables, English user manual Ships from authorized US dealer.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849543904,"sku":"181730090200X","price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/utp3303-3ch-207w-32v3a-linear-dc-power-supply-181730090200x-5754748.jpg?v=1786149197"},{"product_id":"udp3305c-3ch-315w-30v-5a-programmable-linear-dc-power-supply","title":"UDP3305C 3Ch 315W 30V\/5A Programmable Linear DC Power Supply","description":"\u003ch1\u003eThe UDP3305C is the higher-current sibling of the UDP3303C], and features the same three-channel SCPI-programmable linear platform, with CH1 and CH2 raised to 0–30V at 0–5A for benches that need 5A on a rail without giving up clean linear output.\u003c\/h1\u003e\n\u003cp\u003eTotal output is 315W; CH3 cycles through 1.8V \/ 2.5V \/ 3.3V \/ 5V at 3.2A for digital subsystem powering. Linear regulation keeps output ripple under 1 mVrms.\u003c\/p\u003e\n\u003cp\u003eCH1 and CH2 combine in series for up to 60V or in parallel for up to 10A — useful when the workload occasionally exceeds what a single 5A rail can deliver. SCPI over USB-Device or RS-232 lets the supply join an automated test rig at the same control reach as the UDP3303C; five preset storage groups (M1–M5) and a Digital I\/O hardware ON\/OFF pin pair complete the programmable workflow set. For higher-power R\u0026amp;D bench work, characterization sweeps in small-team test labs, and industrial maintenance benches where 5A on a programmable linear earns its place, the UDP3305C is the right point in the UDP3000C family.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Channels, 315W Total — SCPI Programmable\u003c\/strong\u003e — CH1 and CH2: 0–30V \/ 0–5A adjustable. CH3: switchable 1.8V \/ 2.5V \/ 3.3V \/ 5V at 3.2A. SCPI control over USB-Device or RS-232.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5A Per Adjustable Channel\u003c\/strong\u003e — Headroom for higher-power loads where the UDP3303C runs short: small motors, transmitter front-ends, higher-current LED drive, parallel-mode 10A loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH1+CH2 Parallel Mode to 10A\u003c\/strong\u003e — Software-routed parallel combination delivers up to 10A on a single output without external wiring between channel terminals. No jumper cables, no shorting bars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH3 Logic-Rail Selector\u003c\/strong\u003e — Single front-panel button cycles CH3 through 1.8V \/ 2.5V \/ 3.3V \/ 5V at 3.2A. CMOS, microcontroller cores, legacy TTL, USB-class — covered without sacrificing CH1\/CH2.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Topology, ≤1 mVrms Ripple\u003c\/strong\u003e — Load regulation tightens to ≤0.01% + 3 mV at currents ≤3A and ≤0.02% + 5 mV above 3A. The slightly relaxed spec at higher currents reflects pass-element behavior, not a soft cutoff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgramming Accuracy ≤0.1% + 30 mV\u003c\/strong\u003e — Voltage programming accuracy ≤0.1% + 30 mV; current programming accuracy ≤0.5% + 2 mA across the full 5A range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 mV \/ 1 mA Resolution\u003c\/strong\u003e — Four-digit voltage and current display per channel on EBTN LCD.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries Mode to 60V\u003c\/strong\u003e — Front-panel button combines CH1+CH2 in series for up to 60V output. SCPI exposes the same mode for automated test integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP \/ OCP \/ OTP Protection\u003c\/strong\u003e — Configurable per-channel thresholds, plus over-temperature shutdown and keypad lock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive Preset Storage Groups\u003c\/strong\u003e — M1–M5 store full instrument states for fast bench setup. Shutdown memory restores last settings on power-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-Panel 5V\/2A USB Charging Port (CH4)\u003c\/strong\u003e — Independent 5V\/2A USB-A charging output. Charging output only — the data interfaces are USB-Device and RS-232 on the back panel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetailed Features\u003c\/h2\u003e\n\u003ch3\u003e5 Amps Per Channel — Real Bench Workhorse\u003c\/h3\u003e\n\u003cp\u003eThe UDP3305C is the supply you reach for when 3A on the UDP3303C runs out before the workload does. Class-AB audio amplifiers, motor drivers in characterization, RF transmitter front-ends in alignment, prototype boards with high-current LED arrays — all live above the 3A line. Two adjustable channels at 0–30V\/5A give you headroom on each rail; the parallel-mode 10A combination on CH1+CH2 handles the genuinely current-hungry workloads where bench power is the constraint. Load regulation tightens to ≤0.01% + 3 mV at currents up to 3A and ≤0.02% + 5 mV above 3A — the slightly relaxed spec at higher currents reflects pass-element behavior, not a soft cutoff. Linear topology, ≤1 mVrms ripple, full SCPI control across the entire 5A range.\u003c\/p\u003e\n\u003ch3\u003eSeries, Parallel, and Tracking — One Button\u003c\/h3\u003e\n\u003cp\u003eCH1 and CH2 combine in series for up to 60V output, in parallel for up to 10A, and in master-slave tracking for matched-rail testing — all from front-panel buttons, no jumper cables, no shorting bars, no risk of miswiring. Series mode pairs CH1+ and CH2− as the live output terminals; parallel mode pairs CH1+\/CH2+ as the high-current positive output. SCPI exposes the same modes for automated test integration. For benches that occasionally need a 60V rail for a higher-voltage prototype or a 10A rail for a current-hungry load, the configurability is built into the platform — no second supply required.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eHigher-Power R\u0026amp;D Bench\u003c\/h3\u003e\n\u003cp\u003e5A per adjustable channel handles class-AB amplifier rails, motor driver characterization, RF transmitter alignment, and any prototype where 3A on the lower-tier supply runs short. SCPI control scripts the test sequence; ripple under 1 mVrms keeps supply noise out of the measurement at currents up to 5A.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Maintenance \u0026amp; Service\u003c\/h3\u003e\n\u003cp\u003eProgrammable linear bench supply at 5A current capability for board-level service work and equipment test. SCPI over RS-232 integrates into existing maintenance shop test fixtures; OVP\/OCP per-channel protection survives the connection mistakes that happen at 6am.\u003c\/p\u003e\n\u003ch3\u003eSmall-Team Test Lab Characterization\u003c\/h3\u003e\n\u003cp\u003eSCPI over USB-Device and RS-232 integrates into LabVIEW, Python-VISA, and shell-driven test frameworks. Five preset groups speed bench setup between projects. Parallel-mode 10A handles high-current characterization the smaller-current platforms in this family can't source.\u003c\/p\u003e\n\u003ch3\u003eTeaching Labs \u0026amp; Higher-Power Curriculum\u003c\/h3\u003e\n\u003cp\u003ePer-station cost that lets a 20-bench classroom stay inside budget — with the current capability for higher-power lab exercises (motor drive, power amplifiers, LED arrays).\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUDP3305C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 programmable (CH1, CH2 adjustable; CH3 selectable) + CH4 USB charging output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH1, CH2 Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH1, CH2 Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH3 Output Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8V \/ 2.5V \/ 3.3V \/ 5V (±3%, fine-tunable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH3 Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e315W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH4 USB Charging Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V \/ 2A (front-panel USB charging output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (CV)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.01% + 3 mV (current ≤3A); ≤0.02% + 5 mV (current \u0026gt;3A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (CC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.2% + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.1% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤0.5% + 2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤1 mVrms (20Hz–20MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤3 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤300 ppm\/°C (V\/I)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries Mode (CH1+CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 60V (CH1+CH2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParallel Mode (CH1+CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 10A (CH1+CH2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEBTN LCD, 4-digit voltage + current per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgrammable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes — SCPI over USB-Device or RS-232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB-Device, RS-232, Digital I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 preset storage groups (M1–M5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP (per-channel, configurable), OTP, keypad lock, shutdown memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 \/ 120 \/ 220 \/ 230V ±10%, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240 × 168 × 347 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eWhat's the difference between the UDP3303C and the UDP3305C?\u003c\/h3\u003e\n\u003cp\u003eOutput current. UDP3303C delivers 0–3A on CH1 and CH2 (195W total). UDP3305C delivers 0–5A on CH1 and CH2 (315W total). Voltage range, CH3 logic-rail selector, charging port, interfaces, SCPI command set, and feature set are otherwise identical. Choose UDP3303C if 3A is enough; choose UDP3305C when you need to source above 3A on a single rail or up to 10A in parallel mode.\u003c\/p\u003e\n\u003ch3\u003eDoes the UDP3305C have LAN?\u003c\/h3\u003e\n\u003cp\u003eNo. The UDP3305C's data interfaces are USB-Device and RS-232 only. If your workflow needs LAN (with LXI\/web interface), the UDP3000S series adds it on the same linear-PSU platform with up to 4 channels. The Digital I\/O pin pair on the back panel handles hardware ON\/OFF only.\u003c\/p\u003e\n\u003ch3\u003eHow well does the supply hold regulation above 3A?\u003c\/h3\u003e\n\u003cp\u003eLoad regulation is specified as ≤0.01% + 3 mV at currents up to 3A, and ≤0.02% + 5 mV above 3A. The supply is designed for clean operation across the full 5A range; the slightly relaxed spec above 3A reflects the higher-current pass-element behavior, not a soft cutoff.\u003c\/p\u003e\n\u003ch3\u003eCan CH1 and CH2 deliver 10A combined?\u003c\/h3\u003e\n\u003cp\u003eYes — the parallel-mode combination of CH1+CH2 delivers up to 10A on a single output. Engage parallel mode from the front panel (PARA button) or via SCPI; the front-panel jacks repurpose so CH1+ and CH2+ share the high-current positive terminal. Both channels remain at the same voltage setpoint (set on CH1).\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UDP3305C?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3305C ships with the instrument, power cord, USB communication cable (UT-D14), RS-232 communication line, alligator clip test leads, English user manual Ships from authorized US dealer.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849511136,"sku":"181400100029X","price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp3305c-3ch-315w-30v5a-programmable-linear-dc-power-supply-181400100029x-8524024.jpg?v=1786149196"},{"product_id":"udp3305s-e-4ch-328w-30v-5a-programmable-linear-dc-power-supply-edu","title":"UDP3305S-E 4Ch 328W 30V\/5A Programmable Linear DC Power Supply, EDU","description":"\u003ch1\u003eThe UNI-T UDP3305S-E is the Education variant of the Performance Series UDP3000S platform.\u003c\/h1\u003e\n\u003cp\u003eIt features the same 4-channel chassis, same 328W headline, same one-key series\/parallel, same SCPI over USB \/ LAN \/ RS-232, same Web Server browser control, same OVP\/OCP\/OTP, same real-time waveform display as the UDP3305S — at 10 mV voltage resolution instead of 1 mV. CH1 and CH2 deliver 0–30V at up to 5A independently or in software-routed series (up to 60V) or parallel (up to 10A) without external wiring. CH3 provides a 0–6V\/3A logic-level channel. CH4 supplies a fixed 5V\/2A USB charging output for powering DUTs directly.\u003c\/p\u003e\n\u003cp\u003eFor multi-station electronics teaching labs, trade-school programs, and university EE coursework where the curriculum needs proper programmable instrumentation but doesn't require ±1 mV setpoint precision, the Education variant delivers the full Performance Series feature set at deployment economics that scale to twenty stations rather than two. R\u0026amp;D benches that don't need 1 mV resolution but do want a real linear bench supply with full automation reach for the same hardware.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eAcross the design-debug-deploy lifecycle:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesign.\u003c\/strong\u003e Four isolated linear-topology channels at low ripple set the bias and supply rails that analog and sensor designs need from first prototype.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDebug.\u003c\/strong\u003e Series\/parallel\/tracking modes and 4-wire remote sense compensate for cable IR drop during validation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eD\u003c\/strong\u003e\u003cstrong\u003eeploy.\u003c\/strong\u003e SCPI over USB and LAN with web control drive curriculum-paced labs and production characterization without leaving the supply's front panel. Affordability meets precision — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 mV \/ 1 mA Setting Resolution — Performance Series Education Variant\u003c\/strong\u003e — Same Performance Series UDP3000S 4-channel chassis as the UDP3305S, with 10 mV voltage resolution sized for teaching labs and budget-conscious R\u0026amp;D benches. Step up to UDP3305S for 1 mV precision when the workflow demands it; both variants share the same automation, the same display, and the same protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 Fully Isolated Channels (328W Total)\u003c\/strong\u003e — CH1 \u0026amp; CH2: 0–30V\/5A independent; CH3: 0–6V\/3A logic-level; CH4: 5V\/2A USB charging output. Channel grounds are isolated — connect them where you need them, leave them floating where the test demands it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Key Series and Parallel\u003c\/strong\u003e — Software-routed combination of CH1 + CH2: up to 60V in series or 10A in parallel without external wiring between channel terminals. No jumper cables, no shorting bars, no risk of miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Topology, \u0026lt; 350 µVrms Ripple\u003c\/strong\u003e — Linear pass-element regulation, not a switching converter. Output ripple stays under 350 µVrms (5 Hz–1 MHz) and 2 mVpp peak-to-peak. Line and load regulation hold inside 0.01% + 2 mV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.3-Inch TFT with Real-Time Waveform Display\u003c\/strong\u003e — Plots voltage, current, and power waveforms across all configured channels simultaneously. Inrush, transient steps, and power-up sequences visible at the supply itself.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Output and Delayer Functions\u003c\/strong\u003e — Programmable voltage\/current waveforms with built-in templates (sine, ramp, pulse). 10 list profiles + 10 delayer files + 5 preset configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCPI over LAN, RS-232, USB-Host + Web Server Browser Control\u003c\/strong\u003e — Full automation reach plus driverless web-page control from any laptop on the same subnet — useful for instructor-paced lab workstations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Trigger via Digital I\/O\u003c\/strong\u003e — Hardware input\/output trigger lines for cross-instrument timing coordination beyond software loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP \/ OCP \/ OTP with Configurable Monitor\u003c\/strong\u003e — Per-channel protection with free-form trigger condition (V\/I\/P upper limits, OR logic) and selectable response (output off, beeper, both). Voltage\/current limit caps for guarded operation. Keyboard lock prevents accidental reconfiguration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetailed Features\u003c\/h2\u003e\n\u003ch3\u003ePerformance Series Hardware at Education-Tier Economics\u003c\/h3\u003e\n\u003cp\u003eSame 4-channel chassis, same 328W headline, same one-key series\/parallel, same SCPI + LAN + Web Server, same OVP\/OCP\/OTP, same waveform display as the UDP3305S — at 10 mV voltage resolution instead of 1 mV. For teaching labs, multi-station deployments, and curriculum-driven workflows where the headline measurement isn't ±1 mV but rather \"the supply delivers what's set, cleanly, and supports the experiment,\" the Education variant puts a full Performance Series programmable linear bench supply on every station at economics multi-station departments can actually deploy.\u003c\/p\u003e\n\u003ch3\u003eMulti-Station Lab Deployment\u003c\/h3\u003e\n\u003cp\u003e10 mV resolution is more than enough for the typical undergraduate electronics curriculum — diode V-I sweeps, op-amp characterization, transistor biasing, basic switching-supply lab, sensor bridge excitation. SCPI command control over LAN means a TA can pre-load list profiles and presets across an entire lab from one workstation. The keyboard lock keeps a running test-bench from being accidentally reconfigured. The 4.3\" TFT shows three channels of voltage\/current\/power simultaneously — enough screen for two students working a station to both see the supply's state at once.\u003c\/p\u003e\n\u003ch3\u003eReal-Time Voltage \/ Current \/ Power Waveform Display\u003c\/h3\u003e\n\u003cp\u003eThe 4.3-inch TFT LCD plots voltage, current, and power waveforms in real time across all configured channels — every channel, simultaneously. Inrush events, load steps, and power-up transients are visible directly on the supply's display, no oscilloscope required for routine power-behavior observation. Set\/limit values for voltage, current, OVP, and OCP all appear next to live readouts so the configuration and the actual output stay on one screen.\u003c\/p\u003e\n\u003ch3\u003eList Output and Delayer Functions\u003c\/h3\u003e\n\u003cp\u003eThe list function generates programmable voltage and current waveforms with up to 10 stored list profiles per supply. Built-in templates (sine, ramp, pulse) accelerate setup; the editor lets you define waveform points, dwell intervals, voltage\/current limits, and inversion freely. The delayer function adds programmable on\/off sequencing — useful for power-on\/off reliability testing, sequenced rail bring-up, and stress cycling. 10 delayer files plus 5 preset configurations keep frequently used setups one keypress away.\u003cspan class=\"lightbox-close\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSCPI over LAN, RS-232, USB — and Web Server Browser Control\u003c\/h3\u003e\n\u003cp\u003eSCPI command control runs over LAN, RS-232, and USB-Host. The built-in Web Server adds browser-based remote control: any laptop or workstation on the same subnet operates the front panel through a web page — no driver install, no application. For instructor-paced teaching labs, this means one laptop can preview and check every station's configuration without walking the room. For automated test integration, included PC software drops the UDP3305S-E into existing scripted environments. Digital I\/O adds hardware trigger lines for tighter timing coordination than software loops alone.\u003c\/p\u003e\n\u003ch3\u003eOVP \/ OCP \/ OTP with Configurable Monitor Conditions\u003c\/h3\u003e\n\u003cp\u003ePer-channel over-voltage protection, over-current protection, and over-temperature protection guard the device under test. The Monitor function allows free configuration of the protection trigger condition (V upper limit, I upper limit, P upper limit, with logical OR combination) and the response — output off, warning beeper, or both. Voltage and current limit functions cap the adjustable range for guarded teaching-lab or operator-supervised configurations. Keyboard lock prevents accidental reconfiguration during an unattended run.\u003c\/p\u003e\n\u003ch3\u003eIntelligent Fan Control and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eFan speed adjusts automatically with internal temperature, keeping noise low at light loads — useful in classroom and shared-lab environments where supply noise carries across the room. All four channels are fully isolated from each other — connect grounds where you need them, leave them floating where the test demands it. CH1+CH2 one-key series and parallel modes use software-routed combination, no external wiring required between the channel terminals.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eEducation \/ Teaching Labs\u003c\/h3\u003e\n\u003cp\u003eA real Performance Series programmable linear bench supply at education-tier deployment economics — sized for multi-station electronics teaching labs, trade-school programs, and university EE coursework where the curriculum needs proper instrumentation, not consumer-grade bench gear. The Education variant gives every station the same 4-channel chassis, the same automation, the same waveform display the senior-year R\u0026amp;D bench has — at 10 mV resolution sized for the curriculum.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4 channels per station (CH1 + CH2 + CH3 logic + CH4 USB output) — covers an entire experiment from one supply\u003c\/li\u003e\n\u003cli\u003eOne-key series\/parallel for higher voltage \/ higher current labs without external wiring confusion\u003c\/li\u003e\n\u003cli\u003eKeyboard lock prevents accidental reconfiguration on shared station hardware\u003c\/li\u003e\n\u003cli\u003eSCPI over LAN means an instructor can push presets across the entire lab from one workstation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eR\u0026amp;D Engineering\u003c\/h3\u003e\n\u003cp\u003eFor R\u0026amp;D workflows where 10 mV setting resolution is sufficient — embedded prototyping, breadboard validation, generic device-power for off-the-shelf modules — the Education variant of the Performance Series delivers the same UDP3000S chassis at an entry point that makes it easy to add a second supply to the bench. When the application advances to work that needs 1 mV precision, step up to UDP3305S on the same workflow.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSame waveform display, same list\/delayer, same protection, same SCPI as the UDP3305S\u003c\/li\u003e\n\u003cli\u003eCH3 0–6V\/3A handles 5V\/3.3V\/1.8V logic rails directly\u003c\/li\u003e\n\u003cli\u003eWeb Server browser control for remote-bench access\u003c\/li\u003e\n\u003cli\u003eStep up to UDP3305S when the application needs 1 mV resolution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch3\u003eTest Lab \/ Consultancy\u003c\/h3\u003e\n\u003cp\u003eWhere a contract lab is running short-cycle validation work that doesn't require ±1 mV setpoint precision — production-test rigs, incoming-inspection fixtures, hobbyist-product certification — the Education variant covers the workflow with full SCPI automation at an entry-station price point.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull SCPI command set over LAN\/RS-232\/USB-Host\u003c\/li\u003e\n\u003cli\u003e5 preset configurations recall complete 4-channel setups one keypress\u003c\/li\u003e\n\u003cli\u003eDigital I\/O for hardware-paced sequence steps\u003c\/li\u003e\n\u003cli\u003eLinear topology — quieter than typical switching supplies for sensitive DUT measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUDP3305S-E\u003c\/li\u003e\n\u003cli\u003ePower cord (matched to country of destination)\u003c\/li\u003e\n\u003cli\u003eUSB data cable\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOptional Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlligator-clip test leads (replacement \/ additional)\u003c\/li\u003e\n\u003cli\u003eRack-mount kit (if applicable to deployment)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Topology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC Linear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeadline Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeadline Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgrammable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (SCPI command set)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTouch Screen\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB-Host, LAN, RS-232, Digital I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS Compliant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat's the difference between the UDP3305S-E and the UDP3305S?\u003c\/h3\u003e\n\u003cp\u003eBoth are \u003cstrong\u003ePerformance Series\u003c\/strong\u003e models on the same UDP3000S 4-channel platform — same chassis, same 328W headline, same one-key series\/parallel, same SCPI over LAN\/RS-232\/USB-Host, same Web Server browser control, same OVP\/OCP\/OTP, same real-time waveform display. The difference is voltage setting resolution and target use case: UDP3305S-E is the \u003cstrong\u003eEducation variant\u003c\/strong\u003e with 10 mV resolution, sized for teaching labs and budget-conscious R\u0026amp;D benches that don't require ±1 mV setpoint precision. The UDP3305S is the same hardware platform at 1 mV resolution for embedded prototyping, sensor characterization, and analog work where setpoint precision matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003ch3 class=\"product-faq-question\"\u003eIs this enough resolution for an undergraduate electronics curriculum?\u003c\/h3\u003e\n\u003cp\u003eYes. 10 mV voltage resolution and 1 mA current resolution covers diode V-I sweeps, op-amp characterization, transistor biasing, basic switching-supply lab, sensor-bridge excitation, and digital-circuit power. The 4.3-inch TFT shows three channels of voltage\/current\/power simultaneously — enough screen for two students at a station to both see the supply's state. Where the curriculum eventually moves into work that needs 1 mV resolution (precision analog, low-current sensor characterization), the same station can be upgraded to UDP3305S with no other workflow change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849576672,"sku":"181400100063X","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp3305s-e-4ch-328w-30v5a-programmable-linear-dc-power-supply-edu-181400100063x-7554016.jpg?v=1786149196"},{"product_id":"utp3305-3ch-335w-32v-5a-linear-dc-power-supply","title":"UTP3305 3Ch 335W 32V\/5A Linear DC Power Supply","description":"\u003ch1\u003eThe UTP3305 is a 335W three-channel linear bench supply for benches that need higher current than a 3A supply provides without giving up clean linear output. Two adjustable channels deliver 0–32V at 0–5A; a third channel provides a fixed 5V at 3A for logic-level power. Knobs, banana jacks, OVP\/OCP via current-limit protection, and a front panel a first-year student gets back to default settings in under 30 seconds.\u003c\/h1\u003e\n\u003cp\u003eLinear regulation keeps output ripple under 1mVrms — no switching artifacts, no EMI signature competing with the circuit you're actually trying to characterize. CH1 and CH2 combine in series (up to 64V) or parallel (up to 10A), and a master-slave tracking mode keeps CH1 and CH2 synchronized when matched rails are needed for dual-supply analog work.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Channels, 335W Total\u003c\/strong\u003e — CH1 and CH2: 0–32V \/ 0–5A adjustable. CH3: fixed 5V \/ 3A for logic-level power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Topology, ≤1 mVrms Ripple\u003c\/strong\u003e — Clean DC output with no switching frequency, no harmonic spurs, and load regulation of CV ≤1×10⁻⁴ + 3 mV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto CV\/CC Crossover with Current Limit Protection\u003c\/strong\u003e — The supply transitions automatically between constant-voltage and constant-current operation when the load steps, protecting both the DUT and the supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries and Parallel Modes\u003c\/strong\u003e — Combine CH1+CH2 for up to 64V series or 10A parallel — front-panel selectable, no external wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCH1\/CH2 Master-Slave Tracking\u003c\/strong\u003e — Tracking mode synchronizes CH1 and CH2 for matched-rail testing (op-amp ±supplies, balanced analog stages, dual-supply mixed-signal designs).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Bit Voltage and Current Dual Display\u003c\/strong\u003e — Independent voltage and current readouts per channel. No menus, no hidden settings — what you see is what the channel is doing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput ON\/OFF Control\u003c\/strong\u003e — Front-panel master output button keeps you in command of when current actually leaves the supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnob-and-Button Operation\u003c\/strong\u003e — No firmware to update, no PC software to install, no LAN port to configure. Front-panel only — designed to behave the same way on day one and year five.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBench Power That Stays Out of the Way\u003c\/h2\u003e\n\u003cp\u003eThe UTP3305 is the supply you put on a bench when the day's work is upstream of the power supply — circuit prototyping, board-level service, instructional labs where the lesson is signals or amplifiers, not procurement of a programmable instrument. The 5A current capability handles the higher-power loads where the UTP3303 runs out of headroom: small motors, transmitter front-ends, higher-current LED drive circuits, and parallel-mode 10A loads where two channels combine for current-hungry work.\u003c\/p\u003e\n\u003cp\u003eFor teaching labs and trade-school programs running 10–30 stations, this is the operational pitch: every student gets the same instrument with the same workflow, every shift. For service shops and small-team R\u0026amp;D benches, it's the supply you reach for when you don't want to think about the supply.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eTeaching Labs \u0026amp; Trade Schools\u003c\/h3\u003e\n\u003cp\u003ePer-station cost that lets a 20-bench classroom stay inside budget, with 5A current handling the higher-power lab exercises (motor drive, power amplifiers, LED arrays).\u003c\/p\u003e\n\u003ch3\u003eAnalog Bench Development\u003c\/h3\u003e\n\u003cp\u003eDual 0–32V \/ 5A adjustable channels with master-slave tracking power op-amp ±supplies, audio amplifiers, and balanced analog stages with current headroom for class-AB and high-bias designs. Ripple under 1 mVrms keeps supply noise out of the measurement.\u003c\/p\u003e\n\u003ch3\u003eService \u0026amp; Repair\u003c\/h3\u003e\n\u003cp\u003eReliable bench supply for board-level service work where the device under test is a higher-current load — small motor drives, switch-mode supplies under test, automotive electronics. CV\/CC auto crossover handles unknown loads safely.\u003c\/p\u003e\n\u003ch3\u003eMaker \u0026amp; Hobbyist Workshops\u003c\/h3\u003e\n\u003cp\u003eThree channels of clean linear power at a price point that makes sense for a workshop, with the current to drive higher-power projects: amateur radio rigs, EV-conversion bench testing, robotics prototyping. No software stack to maintain.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUTP3305\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 (CH1, CH2 adjustable; CH3 fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1, CH2: 0–32V\u003cbr\u003eCH3: 5V (fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCH1, CH2: 0–5A\u003cbr\u003eCH3: 3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e335W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCV ≤1×10⁻⁴ + 3 mV\u003cbr\u003eCC ≤2×10⁻⁴ + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: ≤1 mVrms\u003cbr\u003eCurrent: ≤3 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Regulation Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCV: 100 mV (typical)\u003cbr\u003eCC: 10 mA (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTracking Bias (CH1\/CH2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5×10⁻³ + 10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-bit voltage and current dual display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndependent, Series, Parallel, CH1\/CH2 Master-Slave Tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCurrent limit protection with auto CV\/CC crossover, output ON\/OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReliability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMTBF ≥ 2,000 hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115V \/ 230V AC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W×D×H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e260 × 170 × 315 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eIncluded in box:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQs\u003c\/h4\u003e\n\u003ch3\u003eDoes the UTP3305 have USB or SCPI?\u003c\/h3\u003e\n\u003cp\u003eNo. The UTP3305 is a fully analog, knob-and-button bench supply — no USB data interface, no LAN, no SCPI command set, no PC software. If your workflow needs SCPI control, the programmable counterparts in the UNI-T linear PSU family are the UDP3303C and UDP3305C (USB + RS-232) and the UDP3000S series (USB + LAN + LXI with web interface).\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the UTP3305 and the UTP3303?\u003c\/h3\u003e\n\u003cp\u003eOutput current. UTP3305 delivers 0–5A on CH1 and CH2 (335W total). UTP3303 delivers 0–3A on CH1 and CH2 (207W total). Voltage range, ripple, regulation, display, and feature set are otherwise identical between the two. Choose UTP3303 if 3A is enough; choose UTP3305 when you need to source above 3A on a single rail or up to 10A in parallel mode.\u003c\/p\u003e\n\u003ch3\u003eWhy a linear supply instead of switching?\u003c\/h3\u003e\n\u003cp\u003eLinear topology produces fundamentally cleaner output — no switching frequency, no harmonic spurs, ripple under 1 mVrms. For analog bench work, audio circuits, low-noise sensor development, and any precision measurement where supply noise shows up in the result, the difference is measurable. The trade-off is lower efficiency and more heat, which at this power level on a bench is not a meaningful constraint.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UTP3305?\u003c\/h3\u003e\n\u003cp\u003eThe UTP3305 ships with the instrument, power cord, output cables, English user manual Ships from authorized US dealer.\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849609440,"sku":"181730090193X","price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/utp3305-3ch-335w-32v5a-linear-dc-power-supply-181730090193x-9059200.jpg?v=1786149197"},{"product_id":"udp3305s-4ch-328w-30v-5a-programmable-linear-dc-power-supply","title":"UDP3305S 4Ch 328W 30V\/5A Programmable Linear DC Power Supply","description":"\u003ch1\u003eThe UNI-T UDP3305S is a 4-channel programmable linear DC power supply with 1 mV \/ 1 mA setting resolution, 328W total output and full automation-grade connectivity.\u003c\/h1\u003e\n\u003cp\u003eFor embedded prototyping, sensor characterization, automated test integration and R\u0026amp;D workflows where 1 mV setpoint precision matters, the Performance Series tier is the target configuration of the UDP3000S platform. The 4.3-inch TFT displays voltage, current, and power waveforms in real time across all configured channels — transient load behavior, inrush events, and power-up sequences are visible at the supply itself, no oscilloscope required for routine power-behavior observation.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eUSB-Host, LAN, RS-232 and Digital I\/O. CH1 and CH2 deliver 0–30V at up to 5A independently or in software-routed series (up to 60V) or parallel (up to 10A) without external wiring. CH3 provides a 0–6V\/3A logic-level channel. The linear topology holds output ripple under 350 µVrms (5 Hz–1 MHz) — clean enough for sensor-bridge excitation, ADC reference rails, and any work where switching-supply artifacts would land in the measurement budget.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eAcross the design-debug-deploy lifecycle: \u003cstrong\u003eDesign.\u003c\/strong\u003e Four isolated linear-topology channels at low ripple set the bias and supply rails that analog and sensor designs need from first prototype. \u003cstrong\u003eDebug.\u003c\/strong\u003e 1 mV \/ 1 mA setting resolution and series\/parallel\/tracking modes characterize multi-rail DUT behavior under load. \u003cstrong\u003eDeploy.\u003c\/strong\u003e SCPI over USB and LAN with web control drive production characterization without leaving the supply’s front panel. Affordability meets precision — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 mV \/ 1 mA Setting Resolution Across All Channels\u003c\/strong\u003e — 5-digit voltage \/ 4-digit current readout. Displayed value is the actual programmed value, not a rounded approximation. 10× finer voltage resolution than the UDP3305S-E Education variant of the same Performance Series platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 Fully Isolated Channels (328W Total)\u003c\/strong\u003e — CH1 \u0026amp; CH2: 0–30V\/5A independent; CH3: 0–6V\/3A logic-level; CH4: 5V\/2A USB charging output. Channel grounds are isolated — connect them where you need them, leave them floating where the test demands it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Key Series and Parallel\u003c\/strong\u003e — Software-routed combination of CH1 + CH2: up to 60V in series or 10A in parallel without external wiring between channel terminals. No jumper cables, no shorting bars, no risk of miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear Topology, \u0026lt; 350 µVrms Ripple\u003c\/strong\u003e — Linear pass-element regulation, not a switching converter. Output ripple stays under 350 µVrms (5 Hz–1 MHz) and 2 mVpp peak-to-peak. Line and load regulation hold inside 0.01% + 2 mV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.3-Inch TFT with Real-Time Waveform Display\u003c\/strong\u003e — Plots voltage, current, and power waveforms across all configured channels simultaneously. Inrush, transient steps, and power-up sequences visible at the supply itself.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Output and Delayer Functions\u003c\/strong\u003e — Programmable voltage\/current waveforms with built-in templates (sine, ramp, pulse). 10 list profiles + 10 delayer files + 5 preset configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCPI over LAN, RS-232, USB-Host + Web Server Browser Control\u003c\/strong\u003e — Full automation reach plus driverless web-page control from any laptop on the same subnet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Trigger via Digital I\/O\u003c\/strong\u003e — Hardware input\/output trigger lines for cross-instrument timing coordination beyond software loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP \/ OCP \/ OTP with Configurable Monitor\u003c\/strong\u003e — Per-channel protection with free-form trigger condition (V\/I\/P upper limits, OR logic) and selectable response (output off, beeper, both). Voltage\/current limit caps for guarded operation. Keyboard lock prevents accidental reconfiguration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDetailed Features\u003c\/h2\u003e\n\u003ch3\u003e1 mV \/ 1 mA Setting Resolution\u003c\/h3\u003e\n\u003cp\u003e1 mV voltage and 1 mA current setting resolution across all four channels — fine enough to bias an op-amp test fixture exactly at threshold, set a precise battery-charge cut-off, or characterize sleep-mode current draw on an IoT sensor without resorting to a separate source-meter. The 5-digit voltage \/ 4-digit current readout matches the setting resolution end-to-end so the displayed value is the actual programmed value, not a rounded approximation.\u003c\/p\u003e\n\u003ch3\u003eLinear Topology \u0026lt; 350 µVrms Output Ripple\u003c\/h3\u003e\n\u003cp\u003eLinear pass-element regulation, not a switching converter — output ripple stays under 350 µVrms (5 Hz–1 MHz) and 2 mVpp peak-to-peak. Line and load regulation hold inside 0.01% + 2 mV. For low-noise analog work, sensor-bridge excitation, ADC reference rails, and any measurement that lives close to its noise floor, the linear topology is the difference between a clean signal and chasing supply artifacts. Transient response under 50 µs handles real load steps; the 10 ms command processing time keeps automated sweeps responsive.\u003c\/p\u003e\n\u003ch3\u003eReal-Time Voltage \/ Current \/ Power Waveform Display\u003c\/h3\u003e\n\u003cp\u003eThe 4.3-inch TFT LCD plots voltage, current, and power waveforms in real time across all configured channels — every channel, simultaneously. Inrush events, load steps, and power-up transients are visible directly on the supply's display, no oscilloscope required for routine power-behavior observation. Set\/limit values for voltage, current, OVP, and OCP all appear next to live readouts so the configuration and the actual output stay on one screen.\u003c\/p\u003e\n\u003ch3\u003eList Output and Delayer Functions\u003c\/h3\u003e\n\u003cp\u003eThe list function generates programmable voltage and current waveforms with up to 10 stored list profiles per supply. Built-in templates (sine, ramp, pulse) accelerate setup; the editor lets you define waveform points, dwell intervals, voltage\/current limits, and inversion freely. The delayer function adds programmable on\/off sequencing — useful for power-on\/off reliability testing, sequenced rail bring-up, and stress cycling. 10 delayer files plus 5 preset configurations keep frequently used setups one keypress away.\u003c\/p\u003e\n\u003ch3\u003eExternal Trigger via Digital I\/O\u003c\/h3\u003e\n\u003cp\u003eThe rear-panel digital I\/O port supports input-trigger mode (external systems control the supply remotely — toggle outputs, advance through list steps, change channels) and output-trigger mode (the supply provides trigger pulses and status flags to drive other instruments in a coordinated test setup). Falling-edge \/ rising-edge triggering and selectable response (output toggle, output on, output off) cover the common automation patterns directly without an additional sequencer.\u003c\/p\u003e\n\u003ch3\u003eSCPI over LAN, RS-232, USB — and Web Server Browser Control\u003c\/h3\u003e\n\u003cp\u003eSCPI command control runs over LAN, RS-232, and USB-Host. The built-in Web Server adds browser-based remote control: any laptop or workstation on the same subnet operates the front panel through a web page — no driver install, no application. Combined with included PC software, the UDP3305S drops into existing automated test environments and serves remote-bench scenarios where the rack-mount supply isn't physically accessible. Digital I\/O adds hardware trigger lines for tighter timing coordination than software loops alone.\u003c\/p\u003e\n\u003ch3\u003eOVP \/ OCP \/ OTP with Configurable Monitor Conditions\u003c\/h3\u003e\n\u003cp\u003ePer-channel over-voltage protection, over-current protection, and over-temperature protection guard the device under test. The Monitor function allows free configuration of the protection trigger condition (V upper limit, I upper limit, P upper limit, with logical OR combination) and the response — output off, warning beeper, or both. Voltage and current limit functions cap the adjustable range for guarded teaching-lab or operator-supervised configurations. Keyboard lock prevents accidental reconfiguration during an unattended run.\u003c\/p\u003e\n\u003ch3\u003eIntelligent Fan Control and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eFan speed adjusts automatically with internal temperature, keeping noise low at light loads and ramping up only when the chassis needs the airflow. All four channels are fully isolated from each other — connect grounds where you need them, leave them floating where the test demands it. CH1+CH2 one-key series and parallel modes use software-routed combination, no external wiring required between the channel terminals.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUDP3305S rear panel — data interfaces, AC input, fan exhaust, protected ground\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eR\u0026amp;D Engineering\u003c\/h3\u003e\n\u003cp\u003ePrecision-resolution programmable bench power for embedded prototyping, sensor characterization, and analog circuit development — 1 mV resolution and \u0026lt;350 µVrms ripple keep the supply out of the noise budget.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIoT sensor sleep-mode current measurement (1 mA resolution at the supply, no external shunt required)\u003c\/li\u003e\n\u003cli\u003eOp-amp \/ instrumentation amplifier bias point sweeps with 1 mV step granularity\u003c\/li\u003e\n\u003cli\u003eMulti-rail embedded designs — digital core (CH3 logic level), analog front-end, I\/O, and sensor power simultaneously from one chassis\u003c\/li\u003e\n\u003cli\u003eBattery-charge curve emulation via list output, with delayer for power-cycle reliability runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTest Lab \/ Consultancy\u003c\/h3\u003e\n\u003cp\u003eMulti-channel automation-grade bench supply for contract test labs and engineering consultancies — SCPI over LAN\/RS-232\/USB plus Web Server browser control means it integrates with whatever automation framework the lab runs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDrop-in replacement for ageing programmable linears in existing test stations\u003c\/li\u003e\n\u003cli\u003eWeb Server browser control for remote-bench access without driver install\u003c\/li\u003e\n\u003cli\u003e5 preset configurations + 10 list profiles + 10 delayer programs cover stored sequences for frequent test rotations\u003c\/li\u003e\n\u003cli\u003eDigital I\/O hardware trigger for tight cross-instrument timing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePower Electronics Engineering\u003c\/h3\u003e\n\u003cp\u003eLinear topology removes switching-supply confounds when characterizing low-power analog rails, sensor frontends, and gate-drive auxiliary supplies in power-electronics designs — combined with the waveform display, transient behavior is visible without a separate scope.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAuxiliary rail emulation (bias supply for gate drivers, sense-amp Vcc, ADC reference)\u003c\/li\u003e\n\u003cli\u003eReal-time waveform display catches inrush and transient events at the supply itself\u003c\/li\u003e\n\u003cli\u003eCH1+CH2 series mode delivers up to 60V for higher-bias analog work\u003c\/li\u003e\n\u003cli\u003eOVP\/OCP with configurable Monitor protects the DUT during automated sweeps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Topology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC Linear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeadline Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeadline Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e328W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgrammable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (SCPI command set)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTouch Screen\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB-Host, LAN, RS-232, Digital I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS Compliant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUDP3305S\u003c\/li\u003e\n\u003cli\u003ePower cord (matched to country of destination)\u003c\/li\u003e\n\u003cli\u003eUSB data cable\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOptional\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlligator-clip test leads (replacement \/ additional)\u003c\/li\u003e\n\u003cli\u003eRack-mount kit (if applicable to deployment)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eWhat's the difference between the UDP3305S and the UDP3305S-E?\u003c\/h3\u003e\n\u003cp\u003eIdentical hardware platform — same 4-channel chassis, same 328W headline, same one-key series\/parallel, same SCPI over LAN\/RS-232\/USB-Host, same Web Server browser control, same OVP\/OCP\/OTP, same real-time waveform display. The difference is voltage setting resolution: UDP3305S has 1 mV resolution; UDP3305S-E has 10 mV. For embedded prototyping, sensor characterization, and analog work where setpoint precision is part of the measurement budget, the UDP3305S Performance tier is the target. For teaching labs, multi-station deployments, and R\u0026amp;D benches where 10 mV resolution suffices, the UDP3305S-E is the same hardware at 10 mV resolution (the Education variant of the Performance Series).\u003c\/p\u003e\n\u003ch3\u003eIs the front-panel USB port a data interface?\u003c\/h3\u003e\n\u003cp\u003eNo — the front-panel USB-A connector on CH4 is a fixed 5V\/2A USB charging output for powering devices under test directly. It is not a data interface. The data interfaces are on the rear panel: USB-Host (data), LAN, RS-232, and Digital I\/O.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849937120,"sku":"181400100084X","price":629.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp3305s-4ch-328w-30v5a-programmable-linear-dc-power-supply-181400100084x-6979127.jpg?v=1786149194"},{"product_id":"udp6932b-200w-60v-10a-programmable-dc-switching-power-supply","title":"UDP6932B 200W 60V\/10A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6731 is a 360 W programmable DC switching power supply with a 80 V × 15 A wide-range output, RS-232 with full SCPI control, 600-group memory, list mode and OVP\/OCP\/OTP protection.\u003c\/h1\u003e\n\u003cp\u003eHigh-voltage 360W class. The 80V × 15A envelope covers 48V automotive\/telecom, 60V\/72V battery packs, GaN\/SiC pre-drivers, and any rail above the 60V ceiling of UDP6720\/UDP6721.\u003c\/p\u003e\n\u003cp\u003eIt's built for a workbench that runs the same supply across product design, board debug, and deployed test fixtures — affordability where the spec sheet doesn't punish it, precision where the load demands it, and an interface direct enough that the next person sitting down doesn't need a manual.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eThe UDP6700 series fits the workflow we call \u003cstrong\u003eDesign. Debug. Deploy.\u003c\/strong\u003e — the three-act cycle most engineering teams actually run a power supply through.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDesign\u003c\/strong\u003e, list mode and 600 memory groups let a planned voltage profile execute repeatably while the rest of the bench attends to capture and analysis.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDebug\u003c\/strong\u003e, OVP\/OCP\/OTP protections, remote sense compensation, and a 4-digit dual LED display make it safe to push a marginal load and see exactly what's happening at the terminals.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDeploy\u003c\/strong\u003e, RS-232 with full SCPI command coverage means the same supply that ran on the design bench can drop into a production rack and be controlled by the same scripts. One instrument, three phases, no relearning.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e360 W rated power, 80 V × 15 A wide envelope\u003c\/strong\u003e — Up to 80 V at 4.5 A or 24 V at 15 A — same 360 W envelope, no second instrument\u003c\/li\u003e\n\u003cli\u003eWide-range output with power ratio 3.0 — one supply covers V\/I combinations that would otherwise require two\u003c\/li\u003e\n\u003cli\u003eProgrammable list mode: 9 steps per list, 1 ms to 9999 s per step, repeat 1–9999 cycles\u003c\/li\u003e\n\u003cli\u003eTrigger delayer: 9 trigger groups, 1 ms to 9999 s per trigger\u003c\/li\u003e\n\u003cli\u003e600 memory groups (M1: 100 \/ M2: 100 \/ M3: 400) for stored output configurations\u003c\/li\u003e\n\u003cli\u003eOver-voltage, over-current, and over-temperature protection with set ranges 0–110% of rated\u003c\/li\u003e\n\u003cli\u003eRemote sense compensation for accurate output at the load terminals over long leads\u003c\/li\u003e\n\u003cli\u003eRS-232 with full SCPI command coverage; a software-only PC controller is included\u003c\/li\u003e\n\u003cli\u003eSmart fan: load- and temperature-controlled for low audible noise at light load\u003c\/li\u003e\n\u003cli\u003e4-digit dual LED display with simultaneous V and I readout\u003c\/li\u003e\n\u003cli\u003eOVP\/OCP thresholds set with a long-press on the V or I key — no menu dive\u003c\/li\u003e\n\u003cli\u003eKnob and direct numeric entry on the front panel; both work the same way\u003c\/li\u003e\n\u003cli\u003eSoftware calibration retains traceability without an internal trim-pot pass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWide-Range Output (Power Ratio 3.0)\u003c\/h2\u003e\n\u003cp\u003ePower ratio 3.0 means the rated output envelope can be redistributed between voltage and current as the load demands. Where a fixed-rectangle supply would force a tradeoff — buy enough volts \u003cem\u003eor\u003c\/em\u003e enough amps — the UDP6700 lets you trade one for the other along a constant-power curve. Most general-purpose bench work sits inside that envelope, so one supply does the work of two.\u003c\/p\u003e\n\u003cp\u003eThe exact V × I corners depend on rated power; the spec table below shows the maximum voltage at rated current and the maximum current at rated voltage for this SKU.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense Compensation\u003c\/h2\u003e\n\u003cp\u003eLong leads drop volts. At 5 A through 1 m of 18-AWG wire, the lead drop is around 100 mV — enough to sour a 3.3 V regulator test or starve a battery cycler. Remote sense routes the regulation feedback past the leads to the load terminals themselves, holding the programmed voltage where it actually matters.\u003c\/p\u003e\n\u003cp\u003eThe remote sense terminals are wired separately from the output terminals on the rear panel; the supply auto-detects sense connection and falls back to local sensing if the wires are removed.\u003c\/p\u003e\n\u003ch2\u003eOVP \/ OCP \/ OTP Protection\u003c\/h2\u003e\n\u003cp\u003eThree independent protections cover the most common ways a load fails: a short or low-impedance fault drives current up (OCP), a misconfigured DUT pulls voltage out of spec (OVP), or a sustained over-load heats the supply itself (OTP). All three trip the output off and display a fault state on the front panel.\u003c\/p\u003e\n\u003cp\u003eOVP and OCP thresholds are set with a long-press on the V or I key — set the threshold once, run the load. No menu dive, no nested submenu. OTP is internal and not user-configurable.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eList Mode and Trigger Delayer\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eList mode\u003c\/strong\u003e runs a 9-step voltage and current sequence with each step held from 1 ms to 9999 s and the whole list repeated 1 to 9999 cycles. Useful for battery cycling, automotive cold-crank profiles, and any scripted sequence that needs to run unattended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrigger delayer\u003c\/strong\u003e fires 9 trigger groups with delays between 1 ms and 9999 s. Useful when an output transition needs to wait for an external event — DUT settling, fixture motion, an oven step — before moving to the next setting.\u003c\/p\u003e\n\u003ch2\u003e600 Memory Groups (M1 \/ M2 \/ M3)\u003c\/h2\u003e\n\u003cp\u003eThree memory banks store 100, 100, and 400 output configurations. M1 and M2 are typically used for active recipes (the configuration in the front-panel knob workflow); M3 holds 400 long-term recall configurations for products and DUTs the bench works on regularly.\u003c\/p\u003e\n\u003cp\u003eEach memory entry stores voltage setting, current setting, OVP and OCP thresholds, and the slope\/list state. Recall is a single front-panel keypress.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eRS-232 with Full SCPI Command Coverage\u003c\/h2\u003e\n\u003cp\u003eRS-232 with full SCPI command set. Voltage and current setpoint, OVP\/OCP threshold, list configuration, memory recall, output enable, and readback all accessible from a host script. The included Windows PC software exposes the same commands through a GUI for users who don't want to write code.\u003c\/p\u003e\n\u003cp\u003eRS-232 is honest about what it is: one supply per host port, no LAN, no USBTMC. For multi-instrument benches with more than one programmable supply or for remote\/automated environments, the \u003cstrong\u003eUDP6900B series\u003c\/strong\u003e adds USB, LAN with web control, RS-485 with Modbus, and multi-machine daisy-chain.\u003c\/p\u003e\n\u003ch2\u003eThermal Derating\u003c\/h2\u003e\n\u003cp\u003eThe UDP6731 delivers full 360 W rated output at ambient temperatures up to about 30 °C. Above that, output power derates linearly to maintain internal junction temperatures inside the safe envelope. The derating curve below shows the exact relationship between ambient temperature and rated power for this SKU. Operating temperature range is 0–40 °C.\u003c\/p\u003e\n\u003cp\u003eThe smart fan adjusts speed automatically based on load and internal temperature; light-load operation is quiet, and the supply only ramps fan speed when thermal headroom requires it.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003e48V\/60V Telecom and Industrial\u003c\/h3\u003e\n\u003cp\u003eThe 80 V ceiling clears the 48 V telecom rail (with margin for ripple and transient testing) and the 60 V industrial rails common in solar combiners, PoE++ injectors, and industrial DC-bus front-ends. 15 A at 48 V is 720 W of effective work in a 360 W rated chassis — possible because the UDP6731 trades amps for volts on a constant-power curve.\u003c\/p\u003e\n\u003ch3\u003eGaN\/SiC Pre-Driver and Gate-Driver Bench\u003c\/h3\u003e\n\u003cp\u003eWide-bandgap converter R\u0026amp;D often runs gate-driver and pre-driver boards from 24 V \/ 48 V \/ 80 V auxiliary rails. UDP6731 supplies that auxiliary bus with low-enough noise to not contaminate the measurement and high-enough current to source the gate charge of the silicon under test.\u003c\/p\u003e\n\u003ch3\u003eBattery Pack R\u0026amp;D (60V class)\u003c\/h3\u003e\n\u003cp\u003e14S to 18S Li-ion packs, 60 V e-bike packs, 72 V industrial battery work. The 80 V ceiling covers the full charge voltage of these packs (typically 60–75 V); 15 A is sufficient for charge work and most discharge sourcing scenarios short of full-pack burn-in.\u003c\/p\u003e\n\u003ch3\u003eSolar Inverter Aux-Power Bench\u003c\/h3\u003e\n\u003cp\u003eString inverters and microinverters typically run their control electronics from a 60–80 V auxiliary rail derived from the DC bus. UDP6731 sources that aux rail directly during bench testing without needing a separate buck converter.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOutput Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax V at Rated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax I at Rated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProgramming Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.03% + 30 mV \/ I: ≤0.03% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.03% + 30 mV \/ I: ≤0.03% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: \u0026lt;12 mVrms \/ \u0026lt;120 mVpp \/ I: \u0026lt;27 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤100 ppm\/°C \/ I: ≤300 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDisplay \u0026amp; Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit, 4-digit dual LED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 (M1: 100, M2: 100, M3: 400)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9-step list with 1 ms–9999 s per step, repeat 1–9999 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Delayer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 trigger groups, 1 ms–9999 s per trigger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP \/ OCP \/ OTP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, OTP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOCP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eInterface \u0026amp; Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-232 + remote sense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eAC Input \u0026amp; Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240 VAC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤80% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−10 to 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePollution Degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePollution Degree 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmart fan (load- and temperature-controlled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical \u0026amp; Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87 × 174 × 255 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (in)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.43 × 6.85 × 10.04 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.4 kg (11.9 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECCN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A992.a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003cp\u003eEvery UDP6700 ships with a power cord, a quick-start guide, the Windows PC software (download), an RS-232 cable, and a calibration certificate. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord (region-specific)\u003c\/li\u003e\n\u003cli\u003eRS-232 communication cable\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003cli\u003ePC software (free download)\u003c\/li\u003e\n\u003cli\u003eFactory calibration certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eOptional accessory:\u003c\/em\u003e Alligator-clip test lead set (sold separately).\u003c\/p\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eUDP6731 vs UDP6730: high-voltage vs high-current\u003c\/h3\u003e\n\u003cp\u003eBoth are 360 W. UDP6731 is 80 V × 15 A — the high-voltage side. UDP6730 is 40 V × 30 A — the high-current side. Choose UDP6731 when the load is 48 V or 60 V or 72 V (telecom, battery pack, GaN\/SiC pre-driver, solar inverter aux); choose UDP6730 when the load is 12 V or 24 V and the bottleneck is amps. The 80 V ceiling is what UDP6731 buys you; everything else is shared.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6900B series is the next step up. Same form factor, same wide-range output philosophy, but adds USB and LAN with web control, RS-485 with Modbus, multi-machine daisy-chain, slope-mode output, auto-range mode, and a built-in DVM. If a single supply on a single host port satisfies the bench, the UDP6700 is the right choice; if the bench has multiple programmable supplies, needs LAN access, or runs scripted multi-instrument tests, UDP6900B is the right step up.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP3000C series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3000C series is multi-channel linear, not single-channel switching. If the bench needs two or three independent isolated outputs in one chassis (rail + bias + reference, for example), UDP3000C is the right tool. UDP6700 is the right tool when a single high-power output beats three medium-power outputs.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box?\u003c\/h3\u003e\n\u003cp\u003ePower cord, RS-232 cable, quick-start guide, factory calibration certificate. Windows PC software is a free download. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003ch3\u003eIs the chassis 1U rack-mountable?\u003c\/h3\u003e\n\u003cp\u003eNo. The chassis is 174 mm tall (about 6.85 inches), which is a desktop form factor — not 1U (44.45 mm). It will fit on a shelf in a standard 19-inch rack but will not mount in a 1U slot. UNI-T does not currently offer a rack-mount kit for the UDP6700 series.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePart of the UDP6700 programmable DC switching power supply series. See also UDP6721, UDP6730, UDP6731.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849642208,"sku":"181400100155X","price":629.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6932b-200w-60v10a-programmable-dc-switching-power-supply-181400100155x-3516828.jpg?v=1786149192"},{"product_id":"udp6731-360w-80v-15a-programmable-dc-switching-power-supply","title":"UDP6731 360W 80V\/15A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6731 is a 360W programmable DC switching power supply with a 80 V × 15 A wide-range output, RS-232 with full SCPI control, 600-group memory, list mode and OVP\/OCP\/OTP protection.\u003c\/h1\u003e\n\u003cp\u003eHigh-voltage 360W class. The 80V × 15A envelope covers 48V automotive\/telecom, 60V\/72V battery packs, GaN\/SiC pre-drivers, and any rail above the 60V ceiling of UDP6720\/UDP6721.\u003c\/p\u003e\n\u003cp\u003eIt's built for a workbench that runs the same supply across product design, board debug, and deployed test fixtures — affordability where the spec sheet doesn't punish it, precision where the load demands it, and an interface direct enough that the next person sitting down doesn't need a manual.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eThe UDP6700 series fits the workflow we call \u003cstrong\u003eDesign. Debug. Deploy.\u003c\/strong\u003e — the three-act cycle most engineering teams actually run a power supply through.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDesign\u003c\/strong\u003e, list mode and 600 memory groups let a planned voltage profile execute repeatably while the rest of the bench attends to capture and analysis.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDebug\u003c\/strong\u003e, OVP\/OCP\/OTP protections, remote sense compensation, and a 4-digit dual LED display make it safe to push a marginal load and see exactly what's happening at the terminals.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDeploy\u003c\/strong\u003e, RS-232 with full SCPI command coverage means the same supply that ran on the design bench can drop into a production rack and be controlled by the same scripts. One instrument, three phases, no relearning.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e360 W rated power, 80 V × 15 A wide envelope\u003c\/strong\u003e — Up to 80 V at 4.5 A or 24 V at 15 A — same 360 W envelope, no second instrument\u003c\/li\u003e\n\u003cli\u003eWide-range output with power ratio 3.0 — one supply covers V\/I combinations that would otherwise require two\u003c\/li\u003e\n\u003cli\u003eProgrammable list mode: 9 steps per list, 1 ms to 9999 s per step, repeat 1–9999 cycles\u003c\/li\u003e\n\u003cli\u003eTrigger delayer: 9 trigger groups, 1 ms to 9999 s per trigger\u003c\/li\u003e\n\u003cli\u003e600 memory groups (M1: 100 \/ M2: 100 \/ M3: 400) for stored output configurations\u003c\/li\u003e\n\u003cli\u003eOver-voltage, over-current, and over-temperature protection with set ranges 0–110% of rated\u003c\/li\u003e\n\u003cli\u003eRemote sense compensation for accurate output at the load terminals over long leads\u003c\/li\u003e\n\u003cli\u003eRS-232 with full SCPI command coverage; a software-only PC controller is included\u003c\/li\u003e\n\u003cli\u003eSmart fan: load- and temperature-controlled for low audible noise at light load\u003c\/li\u003e\n\u003cli\u003e4-digit dual LED display with simultaneous V and I readout\u003c\/li\u003e\n\u003cli\u003eOVP\/OCP thresholds set with a long-press on the V or I key — no menu dive\u003c\/li\u003e\n\u003cli\u003eKnob and direct numeric entry on the front panel; both work the same way\u003c\/li\u003e\n\u003cli\u003eSoftware calibration retains traceability without an internal trim-pot pass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWide-Range Output (Power Ratio 3.0)\u003c\/h2\u003e\n\u003cp\u003ePower ratio 3.0 means the rated output envelope can be redistributed between voltage and current as the load demands. Where a fixed-rectangle supply would force a tradeoff — buy enough volts \u003cem\u003eor\u003c\/em\u003e enough amps — the UDP6700 lets you trade one for the other along a constant-power curve. Most general-purpose bench work sits inside that envelope, so one supply does the work of two.\u003c\/p\u003e\n\u003cp\u003eThe exact V × I corners depend on rated power; the spec table below shows the maximum voltage at rated current and the maximum current at rated voltage for this SKU.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense Compensation\u003c\/h2\u003e\n\u003cp\u003eLong leads drop volts. At 5 A through 1 m of 18-AWG wire, the lead drop is around 100 mV — enough to sour a 3.3 V regulator test or starve a battery cycler. Remote sense routes the regulation feedback past the leads to the load terminals themselves, holding the programmed voltage where it actually matters.\u003c\/p\u003e\n\u003cp\u003eThe remote sense terminals are wired separately from the output terminals on the rear panel; the supply auto-detects sense connection and falls back to local sensing if the wires are removed.\u003c\/p\u003e\n\u003ch2\u003eOVP \/ OCP \/ OTP Protection\u003c\/h2\u003e\n\u003cp\u003eThree independent protections cover the most common ways a load fails: a short or low-impedance fault drives current up (OCP), a misconfigured DUT pulls voltage out of spec (OVP), or a sustained over-load heats the supply itself (OTP). All three trip the output off and display a fault state on the front panel.\u003c\/p\u003e\n\u003cp\u003eOVP and OCP thresholds are set with a long-press on the V or I key — set the threshold once, run the load. No menu dive, no nested submenu. OTP is internal and not user-configurable.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eList Mode and Trigger Delayer\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eList mode\u003c\/strong\u003e runs a 9-step voltage and current sequence with each step held from 1 ms to 9999 s and the whole list repeated 1 to 9999 cycles. Useful for battery cycling, automotive cold-crank profiles, and any scripted sequence that needs to run unattended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrigger delayer\u003c\/strong\u003e fires 9 trigger groups with delays between 1 ms and 9999 s. Useful when an output transition needs to wait for an external event — DUT settling, fixture motion, an oven step — before moving to the next setting.\u003c\/p\u003e\n\u003ch2\u003e600 Memory Groups (M1 \/ M2 \/ M3)\u003c\/h2\u003e\n\u003cp\u003eThree memory banks store 100, 100, and 400 output configurations. M1 and M2 are typically used for active recipes (the configuration in the front-panel knob workflow); M3 holds 400 long-term recall configurations for products and DUTs the bench works on regularly.\u003c\/p\u003e\n\u003cp\u003eEach memory entry stores voltage setting, current setting, OVP and OCP thresholds, and the slope\/list state. Recall is a single front-panel keypress.\u003c\/p\u003e\n\u003ch2\u003eRS-232 with Full SCPI Command Coverage\u003c\/h2\u003e\n\u003cp\u003eRS-232 with full SCPI command set. Voltage and current setpoint, OVP\/OCP threshold, list configuration, memory recall, output enable, and readback all accessible from a host script. The included Windows PC software exposes the same commands through a GUI for users who don't want to write code.\u003c\/p\u003e\n\u003cp\u003eRS-232 is honest about what it is: one supply per host port, no LAN, no USBTMC. For multi-instrument benches with more than one programmable supply or for remote\/automated environments, the \u003cstrong\u003eUDP6900B series\u003c\/strong\u003e adds USB, LAN with web control, RS-485 with Modbus, and multi-machine daisy-chain.\u003c\/p\u003e\n\u003ch2\u003eThermal Derating\u003c\/h2\u003e\n\u003cp\u003eThe UDP6731 delivers full 360 W rated output at ambient temperatures up to about 30 °C. Above that, output power derates linearly to maintain internal junction temperatures inside the safe envelope. The derating curve below shows the exact relationship between ambient temperature and rated power for this SKU. Operating temperature range is 0–40 °C.\u003c\/p\u003e\n\u003cp\u003eThe smart fan adjusts speed automatically based on load and internal temperature; light-load operation is quiet, and the supply only ramps fan speed when thermal headroom requires it.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003e48V\/60V Telecom and Industrial\u003c\/h3\u003e\n\u003cp\u003eThe 80 V ceiling clears the 48 V telecom rail (with margin for ripple and transient testing) and the 60 V industrial rails common in solar combiners, PoE++ injectors, and industrial DC-bus front-ends. 15 A at 48 V is 720 W of effective work in a 360 W rated chassis — possible because the UDP6731 trades amps for volts on a constant-power curve.\u003c\/p\u003e\n\u003ch3\u003eGaN\/SiC Pre-Driver and Gate-Driver Bench\u003c\/h3\u003e\n\u003cp\u003eWide-bandgap converter R\u0026amp;D often runs gate-driver and pre-driver boards from 24 V \/ 48 V \/ 80 V auxiliary rails. UDP6731 supplies that auxiliary bus with low-enough noise to not contaminate the measurement and high-enough current to source the gate charge of the silicon under test.\u003c\/p\u003e\n\u003ch3\u003eBattery Pack R\u0026amp;D (60V class)\u003c\/h3\u003e\n\u003cp\u003e14S to 18S Li-ion packs, 60 V e-bike packs, 72 V industrial battery work. The 80 V ceiling covers the full charge voltage of these packs (typically 60–75 V); 15 A is sufficient for charge work and most discharge sourcing scenarios short of full-pack burn-in.\u003c\/p\u003e\n\u003ch3\u003eSolar Inverter Aux-Power Bench\u003c\/h3\u003e\n\u003cp\u003eString inverters and microinverters typically run their control electronics from a 60–80 V auxiliary rail derived from the DC bus. UDP6731 sources that aux rail directly during bench testing without needing a separate buck converter.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOutput Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e360 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax V at Rated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax I at Rated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.50 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProgramming Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.03% + 30 mV \/ I: ≤0.03% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.03% + 30 mV \/ I: ≤0.03% + 15 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: \u0026lt;12 mVrms \/ \u0026lt;120 mVpp \/ I: \u0026lt;27 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤100 ppm\/°C \/ I: ≤300 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDisplay \u0026amp; Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit, 4-digit dual LED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 (M1: 100, M2: 100, M3: 400)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9-step list with 1 ms–9999 s per step, repeat 1–9999 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Delayer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 trigger groups, 1 ms–9999 s per trigger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP \/ OCP \/ OTP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, OTP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOCP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eInterface \u0026amp; Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-232 + remote sense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eAC Input \u0026amp; Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240 VAC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤80% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−10 to 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePollution Degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePollution Degree 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmart fan (load- and temperature-controlled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical \u0026amp; Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87 × 174 × 255 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (in)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.43 × 6.85 × 10.04 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.4 kg (11.9 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECCN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A992.a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003cp\u003eEvery UDP6700 ships with a power cord, a quick-start guide, the Windows PC software (download), an RS-232 cable and a calibration certificate. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord (region-specific)\u003c\/li\u003e\n\u003cli\u003eRS-232 communication cable\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003cli\u003ePC software (free download)\u003c\/li\u003e\n\u003cli\u003eFactory calibration certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eUDP6731 vs UDP6730 — high-voltage vs high-current\u003c\/h3\u003e\n\u003cp\u003eBoth are 360 W. UDP6731 is 80 V × 15 A — the high-voltage side. UDP6730 is 40 V × 30 A — the high-current side. Choose UDP6731 when the load is 48 V or 60 V or 72 V (telecom, battery pack, GaN\/SiC pre-driver, solar inverter aux); choose UDP6730 when the load is 12 V or 24 V and the bottleneck is amps. The 80 V ceiling is what UDP6731 buys you; everything else is shared.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6900B series is the next step up. Same form factor, same wide-range output philosophy, but adds USB and LAN with web control, RS-485 with Modbus, multi-machine daisy-chain, slope-mode output, auto-range mode, and a built-in DVM. If a single supply on a single host port satisfies the bench, the UDP6700 is the right choice; if the bench has multiple programmable supplies, needs LAN access, or runs scripted multi-instrument tests, UDP6900B is the right step up.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP3000C series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3000C series is multi-channel linear, not single-channel switching. If the bench needs two or three independent isolated outputs in one chassis (rail + bias + reference, for example), UDP3000C is the right tool. UDP6700 is the right tool when a single high-power output beats three medium-power outputs.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box?\u003c\/h3\u003e\n\u003cp\u003ePower cord, RS-232 cable, quick-start guide, factory calibration certificate. Windows PC software is a free download. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003ch3\u003eIs the chassis 1U rack-mountable?\u003c\/h3\u003e\n\u003cp\u003eNo. The chassis is 174 mm tall (about 6.85 inches), which is a desktop form factor — not 1U (44.45 mm). It will fit on a shelf in a standard 19-inch rack but will not mount in a 1U slot. UNI-T does not currently offer a rack-mount kit for the UDP6700 series.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePart of the UDP6700 programmable DC switching power supply series. See also UDP6721, UDP6730, UDP6731.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849674976,"sku":"181400100109X","price":482.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6731-360w-80v15a-programmable-dc-switching-power-supply-181400100109x-5646992.jpg?v=1786149189"},{"product_id":"udp6953b-600w-150v-10a-programmable-dc-switching-power-supply","title":"UDP6953B 600W 150V\/10A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6953B is UNI-T's 600W programmable DC switching supply at the 150V class — the spec for SiC half-bridge characterization, fast EV charger DC-link emulation and high-power solar inverter input stress testing.\u003c\/h1\u003e\n\u003cp\u003eAuto-range output delivers up to 150V at reduced current, 10A at reduced voltage, or any combination within the 600W envelope from a single instrument.\u003c\/p\u003e\n\u003cp\u003eFull programmable interface set: USB Device, USB Host, RS-232, RS-485, LAN with web control, and external analog I\/O — with SCPI, Multi-SCPI, and Modbus RTU command support. Built-in 4½-digit DVM monitors a second voltage point on the DUT without an external instrument. Slope control configures rise\/fall rates independently in voltage-slope (VSR) and current-slope (ISR) modes for soft start\/stop. Remote sense (S+\/S−) compensates for IR drop on the test leads. List mode and delayer functions program up to 512 voltage\/current\/time groups, stored to internal Flash or USB.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDesign.\u003c\/strong\u003e Sourcing the bench supply for a SiC half-bridge characterization or EV charger DC-link emulator is the first commit. 600 W and 150 V at 1 mV \/ 0.1 mA resolution covers the operating envelope where wide-bandgap power electronics actually live, with the four-wire sense and slope-controlled startup that DUT-protective work requires from the first turn-on. Affordability meets precision: the UDP6953B replaces a far more expensive programmable supply for the same V\/I\/W envelope and resolution.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDebug.\u003c\/strong\u003e At validation, the 4½-digit DVM and 512-group list mode replace a second DMM and an external sequencer. Capture power-up profiles, automate efficiency sweeps, and record DUT-side voltage drift while sourcing — without leaving the supply's front panel or rebuilding the test harness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDeploy.\u003c\/strong\u003e Production go\/no-go testing runs over LAN with SCPI, Multi-SCPI, or Modbus RTU. The web server gives a shared bench remote access without a host-software install. RS-485 multi-machine networking scales the station as the throughput requirement does. From first prototype to production verification — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600W Auto-Range Output (0–150V, 0–10A)\u003c\/strong\u003e — Flexible V\/I combinations within rated power. One supply handles multiple test configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy \u0026amp; Low Ripple\u003c\/strong\u003e — 1 mV\/0.1 mA resolution with low ripple and noise for sensitive DUT testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP\/OCP Protection\u003c\/strong\u003e — Independent over-voltage and over-current protection with configurable thresholds protects devices under test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Mode \u0026amp; Delay Function\u003c\/strong\u003e — Program voltage\/current sequences with configurable timing for automated test profiles and battery charge simulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlope Control\u003c\/strong\u003e — Configurable rise\/fall rates for soft start\/stop, preventing inrush damage to sensitive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Sense\u003c\/strong\u003e — Four-wire sensing compensates for voltage drop in test leads, ensuring accurate voltage at the load terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In DVM\u003c\/strong\u003e — Independent digital voltmeter for monitoring a second voltage point without additional equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Remote Control \u0026amp; Multi-Machine\u003c\/strong\u003e — Browser-based control via LAN. Master\/slave communication for series\/parallel multi-unit configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFront-Panel Interface\u003c\/h2\u003e\n\u003cp\u003eA 4.3-inch true color LCD shows set voltage and current alongside actual output values, with output power computed and displayed in real time. The numeric keypad sets values directly without menu diving; the rotary encoder fine-tunes when a small adjustment is faster than typing. Soft-keys map to the function actually in use — list mode, slope, OVP\/OCP, or DVM — instead of burying them in nested menus. Output enable is a dedicated hardware button, always visible, never one click away from a keystroke mistake.\u003c\/p\u003e\n\u003ch2\u003eAuto Range Functionality\u003c\/h2\u003e\n\u003cp\u003eAcross the full 600 W envelope, the UDP6953B reconfigures from 150 V at 4 A — for high-voltage stress testing of SiC gate drivers and PV inverter input stages — down to 10 A at 60 V for low-voltage SiC half-bridge characterization, all from one instrument. Auto-range output is controlled by the rated power envelope, not by hardware range switching, which means a single supply replaces what most labs run as two: a high-voltage low-current rail and a lower-voltage higher-current rail.\u003c\/p\u003e\n\u003ch2\u003eBuilt-in Digital Voltmeter (DVM)\u003c\/h2\u003e\n\u003cp\u003eA built-in 4½-digit voltmeter measures DC voltage on a separate rear-panel pair, displayed alongside the supply's own readbacks on the LCD. For a two-rail bench scenario — measuring the load's regulated DC at the same time the supply is sourcing it — the DVM eliminates a second instrument. Range is 0.001–65.000 V on the 60 V models, up to 160 V on the UDP6933B and UDP6953B.\u003c\/p\u003e\n\u003ch2\u003eMultiple Main Menu Options\u003c\/h2\u003e\n\u003cp\u003eThe main menu structure is shallow by design. Five top-level sections — Monitor, System Settings, User Group, Output Settings, Language — each one or two presses from the front panel. Monitor displays live V\/I\/P\/DVM with per-channel alarms when set conditions deviate. Output Settings configure operating mode, power-up output, and slope. System Settings hold backlight, sound, RS-232\/network, and a factory-default restore. The menu hierarchy never exceeds two levels — depth defeats front-panel work, and the UDP6900 doesn't ask the operator to memorize trees.\u003c\/p\u003e\n\u003ch2\u003eComputer Software and Remote Control\u003c\/h2\u003e\n\u003cp\u003eThe UDP6900 series ships with free PC control software — UNI-T's UDP9000 host application, common across the programmable PSU line. Set voltage and current remotely, log readbacks to disk, sequence list and delay programs, and automate complete characterization runs without writing a SCPI parser. For scripted environments, the supply speaks SCPI, Multi-SCPI, and Modbus RTU natively over USB-Device, RS-232, RS-485, or LAN — pick the bus that fits the test station.\u003c\/p\u003e\n\u003ch2\u003eMulti-Machine Communication\u003c\/h2\u003e\n\u003cp\u003eRS-485 networking links multiple UDP6900 supplies to a single host. Master\/slave configurations enable series-stack for higher voltage or parallel-stack for higher current — useful for multi-rail bench setups or when a single test station needs more total power than one chassis provides. One SCPI session, many supplies, synchronized output.\u003c\/p\u003e\n\u003ch2\u003eWeb Control\u003c\/h2\u003e\n\u003cp\u003eLAN connection brings up an embedded web server — open the supply's IP in any browser to set parameters, run list and delay programs, and configure system settings. No vendor application install on the host machine, no driver headache when the bench runs Linux or a tablet workstation. For shared lab benches and remote-monitored automation, the browser interface is often the cleanest path.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eSiC\/GaN Power Electronics Development\u003c\/h3\u003e\n\u003cp\u003e150V at 10A in a 600W envelope is the spec for SiC half-bridge characterization, GaN device-level bench work below the 100V class, and the rising tier of wide-bandgap power electronics R\u0026amp;D. Slope control provides clean rise\/fall for sensitive HV gate-drive supplies.\u003c\/p\u003e\n\u003ch3\u003eEV Charging \u0026amp; High-Voltage DC Bus\u003c\/h3\u003e\n\u003cp\u003eFast-charger DC-link voltage emulation for AC\/DC and DC\/DC stage qualification, 100V-class EV traction inverter front-end testing, and high-voltage power converter bench work. Auto-range gives flexible V\/I combinations within the 600W envelope.\u003c\/p\u003e\n\u003ch3\u003eSolar Inverter \u0026amp; Renewable Energy Bench\u003c\/h3\u003e\n\u003cp\u003e150V output suits solar inverter input-stage testing, MPPT algorithm validation under controlled source conditions, and string-inverter front-end development. List mode runs realistic PV-curve profiles for repeatable testing.\u003c\/p\u003e\n\u003ch3\u003eIndustrial HV Test Lab\u003c\/h3\u003e\n\u003cp\u003eFull SCPI over USB, RS-232, RS-485, and LAN. The built-in 4½-digit DVM (up to 160V DC) monitors a second voltage point during HV testing without an external instrument. Web control via browser; multi-machine RS-485 for scaled configurations.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–150 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–10 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 25 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.5% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 25 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.5% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV (\u0026lt; 100 V), 10 mV (\u0026gt; 100 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.03% + 20 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.03% + 20 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 50 mVp-p\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 15 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Sense Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e215 × 88 × 373.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat does the built-in DVM measure on this model?\u003c\/h3\u003e\n\u003cp\u003eOn the UDP6953B, the built-in 4½-digit voltmeter measures DC voltages up to 160V through rear-panel terminal inputs (vs 65V on the lower-voltage UDP6900B models). Useful for monitoring a second voltage point on the DUT — e.g., HV bus voltage during converter dev — without an external instrument.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eIs the UDP6953B suitable for SiC and GaN device characterization?\u003c\/h3\u003e\n\u003cp\u003eFor SiC and GaN device-level work below the 100V class, yes — the 150V output covers gate-drive supply rails, accessory-circuit power, and 100V-class DC bus emulation. For higher-voltage SiC work specifically (650V or 1200V class), this supply provides the auxiliary low\/medium-voltage rails; the high-voltage DUT rails come from a higher-class HV supply outside the UDP6900B family.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat does auto-range mean?\u003c\/h3\u003e\n\u003cp\u003eAuto-range means the supply delivers any voltage\/current combination within the rated 600W envelope. The UDP6953B can output 150V at reduced current or 10A at reduced voltage — the power limit is the constraint, not fixed V\/I maximums independently.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat's the difference between the UDP6700 and UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThis family (UDP6900B) sits above the UDP6700, adding auto-range output, slope control, built-in DVM, web control over LAN, RS-485 for multi-machine networking, USB Device, Modbus RTU, and external analog control. UDP6700 provides the core CV\/CC + list-mode + remote-compensation feature set with RS-232 SCPI at a lower price.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eCan I connect multiple UDP6900B units for higher power?\u003c\/h3\u003e\n\u003cp\u003eYes. Multi-machine communication via RS-485 enables master\/slave configurations — connect units in series for higher voltage or parallel for higher current, controlled from a single master or via SCPI commands.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat's included with the UDP6953B?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6953B ships with the instrument, power cable Test leads and sense leads available separately.\u003c\/p\u003e\n\u003ch3\u003eHow does the UDP6953B compare to the UDP6933B for high-voltage SiC work?\u003c\/h3\u003e\n\u003cp\u003eBoth reach 150 V; the UDP6953B doubles the current capacity (10 A vs 5 A) and triples the power envelope (600 W vs 200 W). For SiC half-bridge characterization where the device under test draws meaningful current at full bus voltage — bus-cap charging, shoot-through fault testing, switching loss measurement under continuous load — the UDP6953B handles the working point the UDP6933B can only momentarily touch. For lower-current work like dielectric stress and gate-leakage measurement, the UDP6933B is the value-tier match.\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849707744,"sku":"181400100154X","price":1529.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6953b-600w-150v10a-programmable-dc-switching-power-supply-181400100154x-4751684.jpg?v=1786149189"},{"product_id":"udp6721-180w-60v-8a-programmable-dc-switching-power-supply","title":"UDP6721 180W 60V\/8A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6721 is a 180 W programmable DC switching power supply with a 60 V × 8 A wide-range output, RS-232 with full SCPI control, 600-group memory, list mode, and OVP\/OCP\/OTP protection.\u003c\/h1\u003e\n\u003cp\u003eStep-up current within the 60V class. Same chassis as UDP6720 but 8A instead of 5A, useful when a 24V or 48V load wants more current than 100W can deliver.\u003c\/p\u003e\n\u003cp\u003eIt's built for a workbench that runs the same supply across product design, board debug, and deployed test fixtures — affordability where the spec sheet doesn't punish it, precision where the load demands it, and an interface direct enough that the next person sitting down doesn't need a manual.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eThe UDP6700 series fits the workflow we call \u003cstrong\u003eDesign. Debug. Deploy.\u003c\/strong\u003e — the three-act cycle most engineering teams actually run a power supply through.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDesign\u003c\/strong\u003e, list mode and 600 memory groups let a planned voltage profile execute repeatably while the rest of the bench attends to capture and analysis.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDebug\u003c\/strong\u003e, OVP\/OCP\/OTP protections, remote sense compensation, and a 4-digit dual LED display make it safe to push a marginal load and see exactly what's happening at the terminals.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eDeploy\u003c\/strong\u003e, RS-232 with full SCPI command coverage means the same supply that ran on the design bench can drop into a production rack and be controlled by the same scripts. One instrument, three phases, no relearning.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e180 W rated power, 60 V × 8 A wide envelope\u003c\/strong\u003e — Up to 60 V at 3 A or 22.5 V at 8 A — same 180 W envelope, no second instrument\u003c\/li\u003e\n\u003cli\u003eWide-range output with power ratio 3.0 — one supply covers V\/I combinations that would otherwise require two\u003c\/li\u003e\n\u003cli\u003eProgrammable list mode: 9 steps per list, 1 ms to 9999 s per step, repeat 1–9999 cycles\u003c\/li\u003e\n\u003cli\u003eTrigger delayer: 9 trigger groups, 1 ms to 9999 s per trigger\u003c\/li\u003e\n\u003cli\u003e600 memory groups (M1: 100 \/ M2: 100 \/ M3: 400) for stored output configurations\u003c\/li\u003e\n\u003cli\u003eOver-voltage, over-current, and over-temperature protection with set ranges 0–110% of rated\u003c\/li\u003e\n\u003cli\u003eRemote sense compensation for accurate output at the load terminals over long leads\u003c\/li\u003e\n\u003cli\u003eRS-232 with full SCPI command coverage; a software-only PC controller is included\u003c\/li\u003e\n\u003cli\u003eSmart fan: load- and temperature-controlled for low audible noise at light load\u003c\/li\u003e\n\u003cli\u003e4-digit dual LED display with simultaneous V and I readout\u003c\/li\u003e\n\u003cli\u003eOVP\/OCP thresholds set with a long-press on the V or I key — no menu dive\u003c\/li\u003e\n\u003cli\u003eKnob and direct numeric entry on the front panel; both work the same way\u003c\/li\u003e\n\u003cli\u003eSoftware calibration retains traceability without an internal trim-pot pass\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWide-Range Output (Power Ratio 3.0)\u003c\/h2\u003e\n\u003cp\u003ePower ratio 3.0 means the rated output envelope can be redistributed between voltage and current as the load demands. Where a fixed-rectangle supply would force a tradeoff — buy enough volts \u003cem\u003eor\u003c\/em\u003e enough amps — the UDP6700 lets you trade one for the other along a constant-power curve. Most general-purpose bench work sits inside that envelope, so one supply does the work of two.\u003c\/p\u003e\n\u003cp\u003eThe exact V × I corners depend on rated power; the spec table below shows the maximum voltage at rated current and the maximum current at rated voltage for this SKU.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense Compensation\u003c\/h2\u003e\n\u003cp\u003eLong leads drop volts. At 5 A through 1 m of 18-AWG wire, the lead drop is around 100 mV — enough to sour a 3.3 V regulator test or starve a battery cycler. Remote sense routes the regulation feedback past the leads to the load terminals themselves, holding the programmed voltage where it actually matters.\u003c\/p\u003e\n\u003cp\u003eThe remote sense terminals are wired separately from the output terminals on the rear panel; the supply auto-detects sense connection and falls back to local sensing if the wires are removed.\u003c\/p\u003e\n\u003ch2\u003eOVP \/ OCP \/ OTP Protection\u003c\/h2\u003e\n\u003cp\u003eThree independent protections cover the most common ways a load fails: a short or low-impedance fault drives current up (OCP), a misconfigured DUT pulls voltage out of spec (OVP), or a sustained over-load heats the supply itself (OTP). All three trip the output off and display a fault state on the front panel.\u003c\/p\u003e\n\u003cp\u003eOVP and OCP thresholds are set with a long-press on the V or I key — set the threshold once, run the load. No menu dive, no nested submenu. OTP is internal and not user-configurable.\u003c\/p\u003e\n\u003ch2\u003eList Mode and Trigger Delayer\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eList mode\u003c\/strong\u003e runs a 9-step voltage and current sequence with each step held from 1 ms to 9999 s and the whole list repeated 1 to 9999 cycles. Useful for battery cycling, automotive cold-crank profiles, and any scripted sequence that needs to run unattended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrigger delayer\u003c\/strong\u003e fires 9 trigger groups with delays between 1 ms and 9999 s. Useful when an output transition needs to wait for an external event — DUT settling, fixture motion, an oven step — before moving to the next setting.\u003c\/p\u003e\n\u003ch2\u003e600 Memory Groups (M1 \/ M2 \/ M3)\u003c\/h2\u003e\n\u003cp\u003eThree memory banks store 100, 100, and 400 output configurations. M1 and M2 are typically used for active recipes (the configuration in the front-panel knob workflow); M3 holds 400 long-term recall configurations for products and DUTs the bench works on regularly.\u003c\/p\u003e\n\u003cp\u003eEach memory entry stores voltage setting, current setting, OVP and OCP thresholds, and the slope\/list state. Recall is a single front-panel keypress.\u003c\/p\u003e\n\u003ch2\u003eRS-232 with Full SCPI Command Coverage\u003c\/h2\u003e\n\u003cp\u003eRS-232 with full SCPI command set. Voltage and current setpoint, OVP\/OCP threshold, list configuration, memory recall, output enable, and readback all accessible from a host script. The included Windows PC software exposes the same commands through a GUI for users who don't want to write code.\u003c\/p\u003e\n\u003cp\u003eRS-232 is honest about what it is: one supply per host port, no LAN, no USBTMC. For multi-instrument benches with more than one programmable supply or for remote\/automated environments, the \u003cstrong\u003eUDP6900B series\u003c\/strong\u003e adds USB, LAN with web control, RS-485 with Modbus, and multi-machine daisy-chain.\u003c\/p\u003e\n\u003ch2\u003eThermal Derating\u003c\/h2\u003e\n\u003cp\u003eThe UDP6721 delivers full 180 W rated output at ambient temperatures up to about 30 °C. Above that, output power derates linearly to maintain internal junction temperatures inside the safe envelope. The derating curve below shows the exact relationship between ambient temperature and rated power for this SKU. Operating temperature range is 0–40 °C.\u003c\/p\u003e\n\u003cp\u003eThe smart fan adjusts speed automatically based on load and internal temperature; light-load operation is quiet, and the supply only ramps fan speed when thermal headroom requires it.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eIndustrial Maintenance Bench (Higher Current)\u003c\/h3\u003e\n\u003cp\u003eFor benches where the loads run heavier than 5 A — 24 V solenoids and contactors that draw 6–7 A inrush, 12 V automotive subsystems that need real margin, multi-channel LED arrays. Same 60 V ceiling as UDP6720 but 8 A continuous instead of 5 A.\u003c\/p\u003e\n\u003ch3\u003eBattery and Charger Bench\u003c\/h3\u003e\n\u003cp\u003e180 W is enough to charge most single-cell and 4S Li-ion packs at a meaningful rate, run small Pb-acid cycles, and source enough current for fixture-driven battery work without requiring a UDP6730. List mode runs a charge profile; OCP and OVP enforce safe envelopes.\u003c\/p\u003e\n\u003ch3\u003eEmbedded R\u0026amp;D, High-Inrush Loads\u003c\/h3\u003e\n\u003cp\u003eFor boards where the prototype draws more than 5 A on power-up — switching front-ends, motor drivers, multi-DUT fixtures. UDP6721's 8 A capability prevents an inrush event from tripping current limit and aborting the bring-up.\u003c\/p\u003e\n\u003ch3\u003eProduction Test Station\u003c\/h3\u003e\n\u003cp\u003eDrop-in replacement for UDP6720 on lines that have outgrown the 5 A envelope. Same UI, same SCPI command set, same memory model — only the rating changes.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOutput Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e60 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax V at Rated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax I at Rated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.00 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProgramming Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.05% + 10 mV \/ I: ≤0.3% + 5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.01% + 3 mV \/ I: ≤0.02% + 5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.01% + 3 mV \/ I: ≤0.02% + 5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: \u0026lt;5 mVrms \/ \u0026lt;50 mVpp \/ I: \u0026lt;8 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤100 ppm\/°C \/ I: ≤300 ppm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDisplay \u0026amp; Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-digit, 4-digit dual LED display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Groups\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 (M1: 100, M2: 100, M3: 400)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eList Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9-step list with 1 ms–9999 s per step, repeat 1–9999 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Delayer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 trigger groups, 1 ms–9999 s per trigger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP \/ OCP \/ OTP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, OTP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOVP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOCP Set Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–110% of rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eInterface \u0026amp; Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRS-232 + remote sense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSoftware Calibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eAC Input \u0026amp; Environment\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–240 VAC, 47–63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤80% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−10 to 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAltitude\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2000 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePollution Degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePollution Degree 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmart fan (load- and temperature-controlled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical \u0026amp; Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87 × 174 × 255 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (in)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.43 × 6.85 × 10.04 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.2 kg (9.3 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECCN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A992.a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003cp\u003eEvery UDP6700 ships with a power cord, a quick-start guide, the Windows PC software (download), an RS-232 cable, and a calibration certificate. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord (region-specific)\u003c\/li\u003e\n\u003cli\u003eRS-232 communication cable\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003cli\u003ePC software (free download)\u003c\/li\u003e\n\u003cli\u003eFactory calibration certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eOptional accessory:\u003c\/em\u003e Alligator-clip test lead set (sold separately).\u003c\/p\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eUDP6721 vs UDP6720 — when does the upgrade pay?\u003c\/h3\u003e\n\u003cp\u003eSame chassis, same UI, same 60 V ceiling. UDP6721 trades a small ripple\/regulation increase (≤0.02% + 5 mA load regulation vs ≤0.01% + 3 mA on UDP6720) for nearly double the current rating (8 A vs 5 A) and 80% more rated power (180 W vs 100 W). The upgrade pays whenever the bench load draws more than 5 A continuous, has inrush above 5 A, or needs more headroom at 24 V or 48 V.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6900B series is the next step up. Same form factor, same wide-range output philosophy, but adds USB and LAN with web control, RS-485 with Modbus, multi-machine daisy-chain, slope-mode output, auto-range mode, and a built-in DVM. If a single supply on a single host port satisfies the bench, the UDP6700 is the right choice; if the bench has multiple programmable supplies, needs LAN access, or runs scripted multi-instrument tests, UDP6900B is the right step up.\u003c\/p\u003e\n\u003ch3\u003eWhere does this fit relative to the UDP3000C series?\u003c\/h3\u003e\n\u003cp\u003eThe UDP3000C series is multi-channel linear, not single-channel switching. If the bench needs two or three independent isolated outputs in one chassis (rail + bias + reference, for example), UDP3000C is the right tool. UDP6700 is the right tool when a single high-power output beats three medium-power outputs.\u003c\/p\u003e\n\u003ch3\u003eWhat's in the box?\u003c\/h3\u003e\n\u003cp\u003ePower cord, RS-232 cable, quick-start guide, factory calibration certificate. Windows PC software is a free download. Test leads with alligator clips are an optional accessory and not included in the base configuration.\u003c\/p\u003e\n\u003ch3\u003eIs the chassis 1U rack-mountable?\u003c\/h3\u003e\n\u003cp\u003eNo. The chassis is 174 mm tall (about 6.85 inches), which is a desktop form factor — not 1U (44.45 mm). It will fit on a shelf in a standard 19-inch rack but will not mount in a 1U slot. UNI-T does not currently offer a rack-mount kit for the UDP6700 series.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePart of the UDP6700 programmable DC switching power supply series. See also UDP6721, UDP6730, UDP6731.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849740512,"sku":"181400100064X","price":345.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6721-180w-60v8a-programmable-dc-switching-power-supply-181400100064x-2900291.jpg?v=1786149188"},{"product_id":"udp6952b-600w-60v-25a-programmable-dc-switching-power-supply","title":"UDP6952B 600W 60V\/25A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6952B is UNI-T's 600W high-current programmable DC switching supply — 60V at up to 25A continuous, sized for e-bike and light-EV motor drive testing, fast-charging stage prototyping and 48V industrial battery work.\u003c\/h1\u003e\n\u003cp\u003eFull programmable interface set: USB Device, USB Host, RS-232, RS-485, LAN with web control, and external analog I\/O, with SCPI, Multi-SCPI and Modbus RTU command support. \u003cmeta charset=\"utf-8\"\u003eAuto-range output delivers any V\/I combination within the 600W envelope from a single instrument. Built-in 4½-digit DVM monitors a second voltage point on the DUT without an external instrument. Slope control configures rise\/fall rates independently in voltage-slope (VSR) and current-slope (ISR) modes for soft start\/stop. Remote sense (S+\/S−) compensates for IR drop on the test leads. List mode and delayer functions program up to 512 voltage\/current\/time groups, stored to internal Flash or USB.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDesign.\u003c\/strong\u003e Sourcing the bench supply for high-current 60V power-electronics development is the first commit. 600 W at 60 V \/ 25 A with 1 mV \/ 0.1 mA resolution covers the envelope this work needs, with the four-wire sense and slope-controlled startup that DUT-protective work requires from the first turn-on. Programmable from the front panel or remotely — list mode, slope control, OVP\/OCP, and DVM are first-class controls, not buried menu options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDebug.\u003c\/strong\u003e At validation, the 4½-digit DVM and 512-group list mode replace a second DMM and an external sequencer. Capture power-up profiles, automate sweeps, and record DUT-side voltage drift while sourcing — without leaving the supply's front panel or rebuilding the test harness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDeploy.\u003c\/strong\u003e Production go\/no-go testing runs over LAN with SCPI, Multi-SCPI, or Modbus RTU. The web server gives a shared bench remote access without a host-software install. RS-485 multi-machine networking scales the station as the throughput requirement does. From first prototype to production verification — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600W Auto-Range Output (0–60V, 0–25A)\u003c\/strong\u003e — Flexible V\/I combinations within rated power. One supply handles multiple test configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy \u0026amp; Low Ripple\u003c\/strong\u003e — 1 mV\/0.1 mA resolution with low ripple and noise for sensitive DUT testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP\/OCP Protection\u003c\/strong\u003e — Independent over-voltage and over-current protection with configurable thresholds protects devices under test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Mode \u0026amp; Delay Function\u003c\/strong\u003e — Program voltage\/current sequences with configurable timing for automated test profiles and battery charge simulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlope Control\u003c\/strong\u003e — Configurable rise\/fall rates for soft start\/stop, preventing inrush damage to sensitive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Sense\u003c\/strong\u003e — Four-wire sensing compensates for voltage drop in test leads, ensuring accurate voltage at the load terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In DVM\u003c\/strong\u003e — Independent digital voltmeter for monitoring a second voltage point without additional equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Remote Control \u0026amp; Multi-Machine\u003c\/strong\u003e — Browser-based control via LAN. Master\/slave communication for series\/parallel multi-unit configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFront-Panel Interface\u003c\/h2\u003e\n\u003cp\u003eA 4.3-inch true color LCD shows set voltage and current alongside actual output values, with output power computed and displayed in real time. The numeric keypad sets values directly without menu diving; the rotary encoder fine-tunes when a small adjustment is faster than typing. Soft-keys map to the function actually in use — list mode, slope, OVP\/OCP, or DVM — instead of burying them in nested menus. Output enable is a dedicated hardware button, always visible, never one click away from a keystroke mistake.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense\u003c\/h2\u003e\n\u003cp\u003eLong test leads drop voltage. At higher currents, the drop is no longer a rounding error — a 10 A draw across a meter of 16 AWG returns roughly 50 mV less to the load than the supply set. The UDP6900 series corrects for this with four-wire remote sense: connect the output's \u003cstrong\u003e+\u003c\/strong\u003e and \u003cstrong\u003e−\u003c\/strong\u003e terminals to the load through the current-carrying leads, then run a separate pair from \u003cstrong\u003eS+\u003c\/strong\u003e and \u003cstrong\u003eS−\u003c\/strong\u003e directly to the device under test. The supply servo's regulation point shifts from its own terminals to the load's terminals — and the 1 V SENSE compensation headroom keeps the rail accurate where it actually matters.\u003c\/p\u003e\n\u003ch2\u003eOver-Voltage\/Over-Current Protection (OVP\/OCP)\u003c\/h2\u003e\n\u003cp\u003eIndependent over-voltage and over-current thresholds, both set from the front panel. When either limit trips, the supply latches output off and posts the trigger on the LCD — the kind of unambiguous fault state that matters when a DUT failure during overnight characterization could otherwise damage hardware or lose a test run. Thresholds persist across power cycles and survive front-panel lock for unattended operation.\u003c\/p\u003e\n\u003ch2\u003eList Output and Delay Function\u003c\/h2\u003e\n\u003cp\u003eList mode programs up to 512 voltage\/current\/time groups, executed in sequence — useful at 25 A continuous for low-voltage inverter input-stage characterization (walking through 12 V, 24 V, and 48 V system levels at full current draw), for high-current DC-DC converter input sweeps, and for controlled-current battery discharge profiles. The delay function programs output on\/off sequencing for load-cycling reliability tests. Files save to Flash or USB in \u003ccode\u003e.lst.csv\u003c\/code\u003e and \u003ccode\u003e.dly.csv\u003c\/code\u003e formats — Excel-editable.\u003c\/p\u003e\n\u003ch2\u003eSlope Mode Options\u003c\/h2\u003e\n\u003cp\u003eAt 25 A continuous, an uncontrolled current rise into an inductive or low-impedance load is a real fault risk. Three slope modes prevent it. Normal mode steps directly to the set value. Voltage Slope (VSR) ramps voltage at a configurable rate. Current Slope (ISR) ramps current step-by-step — critical for motor-drive bench setups, low-voltage inverter input stages, and any DUT where startup di\/dt determines whether the DUT runs or fails the SOA gate.\u003c\/p\u003e\n\u003ch2\u003eAuto Range Functionality\u003c\/h2\u003e\n\u003cp\u003e600 W of working envelope, with output reconfiguration across the V\/I plane on demand: 60 V at 10 A for high-side characterization, 25 A at 24 V for low-voltage inverter input stages, or anything in between. At 25 A continuous, the UDP6952B handles current ranges that fixed supplies in the 100–200 W class simply cannot reach — without sacrificing the upper voltage when the bench needs it.\u003c\/p\u003e\n\u003ch2\u003eBuilt-in Digital Voltmeter (DVM)\u003c\/h2\u003e\n\u003cp\u003eA built-in 4½-digit voltmeter measures DC voltage on a separate rear-panel pair, displayed alongside the supply's own readbacks on the LCD. For a two-rail bench scenario — measuring the load's regulated DC at the same time the supply is sourcing it — the DVM eliminates a second instrument. Range is 0.001–65.000 V on the 60 V models, up to 160 V on the UDP6933B and UDP6953B.\u003c\/p\u003e\n\u003ch2\u003eMultiple Main Menu Options\u003c\/h2\u003e\n\u003cp\u003eThe main menu structure is shallow by design. Five top-level sections — Monitor, System Settings, User Group, Output Settings, Language — each one or two presses from the front panel. Monitor displays live V\/I\/P\/DVM with per-channel alarms when set conditions deviate. Output Settings configure operating mode, power-up output, and slope. System Settings hold backlight, sound, RS-232\/network, and a factory-default restore. The menu hierarchy never exceeds two levels — depth defeats front-panel work, and the UDP6900 doesn't ask the operator to memorize trees.\u003c\/p\u003e\n\u003ch2\u003eComputer Software and Remote Control\u003c\/h2\u003e\n\u003cp\u003eThe UDP6900 series ships with free PC control software — UNI-T's UDP9000 host application, common across the programmable PSU line. Set voltage and current remotely, log readbacks to disk, sequence list and delay programs, and automate complete characterization runs without writing a SCPI parser. For scripted environments, the supply speaks SCPI, Multi-SCPI, and Modbus RTU natively over USB-Device, RS-232, RS-485, or LAN — pick the bus that fits the test station.\u003c\/p\u003e\n\u003ch2\u003eMulti-Machine Communication\u003c\/h2\u003e\n\u003cp\u003eRS-485 networking links multiple UDP6900 supplies to a single host. Master\/slave configurations enable series-stack for higher voltage or parallel-stack for higher current — useful for multi-rail bench setups or when a single test station needs more total power than one chassis provides. One SCPI session, many supplies, synchronized output.\u003c\/p\u003e\n\u003ch2\u003eWeb Control\u003c\/h2\u003e\n\u003cp\u003eLAN connection brings up an embedded web server — open the supply's IP in any browser to set parameters, run list and delay programs, and configure system settings. No vendor application install on the host machine, no driver headache when the bench runs Linux or a tablet workstation. For shared lab benches and remote-monitored automation, the browser interface is often the cleanest path.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eHigh-Current Motor Drive \u0026amp; EV Bench\u003c\/h3\u003e\n\u003cp\u003e25 A continuous at 60 V handles e-bike and light-EV motor drive testing, fast-charging stage prototyping, 48V mild-hybrid automotive electronics, and 600W industrial-scale bench work. Slope control prevents current overshoot during DUT power-up.\u003c\/p\u003e\n\u003ch3\u003eBattery Charging \u0026amp; Pack Emulation\u003c\/h3\u003e\n\u003cp\u003eProgrammable CC\/CV with list mode runs realistic charge profiles up to 25A. The supply can also act as a battery emulator with controlled output impedance for downstream charger and BMS testing.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Power Electronics Bench\u003c\/h3\u003e\n\u003cp\u003e600W output suits 48V\/60V industrial DC equipment, high-power DC-DC converter dev, and the higher-end of low-voltage power-electronics work. Multi-machine RS-485 scales the bench for multi-unit configurations.\u003c\/p\u003e\n\u003ch3\u003eTest Lab \u0026amp; Production Test\u003c\/h3\u003e\n\u003cp\u003eFull SCPI over USB, RS-232, RS-485, and LAN integrates into automated test systems. Web control via browser. External analog interface for multi-supply coordination. Internal Flash + USB storage for test profiles.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 99.9306%; height: 392.014px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e0–60 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e0–25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e600 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eLoad Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.01% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eLoad Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.1% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eLine Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.01% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eLine Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.1% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eSetting Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eSetting Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eReadback Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e0.1 mV (\u0026lt; 10 V), 1 mV (\u0026gt; 10 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eReadback Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e0.1 mA (\u0026lt; 10 A), 1 mA (\u0026gt; 10 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eSetting Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.03% + 5 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eSetting Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.1% + 25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eReadback Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.03% + 5 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eReadback Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 0.1% + 25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 20 mVp-p\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e≤ 15 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eRemote Sense Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e1 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e215 × 88 × 373.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6007px;\"\u003e\n\u003ctd style=\"width: 51.644%; height: 19.6007px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 46.5291%; height: 19.6007px;\"\u003e4.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eWhat does auto-range mean?\u003c\/h3\u003e\n\u003cp\u003eAuto-range means the supply delivers any voltage\/current combination within the rated 600W envelope. The UDP6952B can output 60V at reduced current or 25A at reduced voltage — the power limit is the constraint, not fixed V\/I maximums independently.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the UDP6700 and UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThis family (UDP6900B) sits above the UDP6700, adding auto-range output, slope control, built-in DVM, web control over LAN, RS-485 for multi-machine networking, USB Device, Modbus RTU, and external analog control. UDP6700 provides the core CV\/CC + list-mode + remote-compensation feature set with RS-232 SCPI at a lower price.\u003c\/p\u003e\n\u003ch3\u003eCan I connect multiple UDP6900B units for higher power?\u003c\/h3\u003e\n\u003cp\u003eYes. Multi-machine communication via RS-485 enables master\/slave configurations — connect units in series for higher voltage or parallel for higher current, controlled from a single master or via SCPI commands.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UDP6952B?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6952B ships with the instrument, power cable Test leads and sense leads available separately.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849838816,"sku":"181400100153X","price":1259.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6952b-600w-60v25a-programmable-dc-switching-power-supply-181400100153x-2626278.jpg?v=1786149189"},{"product_id":"udp6933b-200w-150v-5a-programmable-dc-switching-power-supply","title":"UDP6933B 200W 150V\/5A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6933B is a 200W programmable DC switching supply at the 150V class for SiC and GaN gate-drive supply emulation, 100V-class DC bus work and the higher-voltage power-electronics workloads where 60V supplies in the family run short. \u003c\/h1\u003e\n\u003cp\u003eFull programmable interface set: USB Device, USB Host, RS-232, RS-485, LAN with web control, and external analog I\/O, with SCPI, Multi-SCPI and Modbus RTU command support. \u003cmeta charset=\"utf-8\"\u003eAuto-range gives flexible V\/I combinations within the rated 200W envelope. Built-in 4½-digit DVM monitors a second voltage point on the DUT without an external instrument. Slope control configures rise\/fall rates independently in voltage-slope (VSR) and current-slope (ISR) modes for soft start\/stop. Remote sense (S+\/S−) compensates for IR drop on the test leads. List mode and delayer functions program up to 512 voltage\/current\/time groups, stored to internal Flash or USB.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDesign.\u003c\/strong\u003e Sourcing the bench supply for high-voltage DC bus characterization is the first commit. 200 W and 150 V at 1 mV \/ 0.1 mA resolution covers the operating envelope where high-voltage power electronics actually live, with the four-wire sense and slope-controlled startup that DUT-protective work requires from the first turn-on. Programmable from the front panel or remotely — list mode, slope control, OVP\/OCP, and DVM are first-class controls, not buried menu options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDebug.\u003c\/strong\u003e At validation, the 4½-digit DVM and 512-group list mode replace a second DMM and an external sequencer. Capture power-up profiles, automate sweeps, and record DUT-side voltage drift while sourcing — without leaving the supply's front panel or rebuilding the test harness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDeploy.\u003c\/strong\u003e Production go\/no-go testing runs over LAN with SCPI, Multi-SCPI, or Modbus RTU. The web server gives a shared bench remote access without a host-software install. RS-485 multi-machine networking scales the station as the throughput requirement does. From first prototype to production verification — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e200W Auto-Range Output (0–150V, 0–5A)\u003c\/strong\u003e — Flexible V\/I combinations within rated power. One supply handles multiple test configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy \u0026amp; Low Ripple\u003c\/strong\u003e — 1 mV\/0.1 mA resolution with low ripple and noise for sensitive DUT testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP\/OCP Protection\u003c\/strong\u003e — Independent over-voltage and over-current protection with configurable thresholds protects devices under test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Mode \u0026amp; Delay Function\u003c\/strong\u003e — Program voltage\/current sequences with configurable timing for automated test profiles and battery charge simulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlope Control\u003c\/strong\u003e — Configurable rise\/fall rates for soft start\/stop, preventing inrush damage to sensitive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Sense\u003c\/strong\u003e — Four-wire sensing compensates for voltage drop in test leads, ensuring accurate voltage at the load terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In DVM\u003c\/strong\u003e — Independent digital voltmeter for monitoring a second voltage point without additional equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Remote Control \u0026amp; Multi-Machine\u003c\/strong\u003e — Browser-based control via LAN. Master\/slave communication for series\/parallel multi-unit configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFront-Panel Interface\u003c\/h2\u003e\n\u003cp\u003eA 4.3-inch true color LCD shows set voltage and current alongside actual output values, with output power computed and displayed in real time. The numeric keypad sets values directly without menu diving; the rotary encoder fine-tunes when a small adjustment is faster than typing. Soft-keys map to the function actually in use — list mode, slope, OVP\/OCP, or DVM — instead of burying them in nested menus. Output enable is a dedicated hardware button, always visible, never one click away from a keystroke mistake.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense\u003c\/h2\u003e\n\u003cp\u003eLong test leads drop voltage. At higher currents, the drop is no longer a rounding error — a 10 A draw across a meter of 16 AWG returns roughly 50 mV less to the load than the supply set. The UDP6900 series corrects for this with four-wire remote sense: connect the output's \u003cstrong\u003e+\u003c\/strong\u003e and \u003cstrong\u003e−\u003c\/strong\u003e terminals to the load through the current-carrying leads, then run a separate pair from \u003cstrong\u003eS+\u003c\/strong\u003e and \u003cstrong\u003eS−\u003c\/strong\u003e directly to the device under test. The supply servo's regulation point shifts from its own terminals to the load's terminals — and the 1 V SENSE compensation headroom keeps the rail accurate where it actually matters.\u003c\/p\u003e\n\u003ch2\u003eOver-Voltage\/Over-Current Protection (OVP\/OCP)\u003c\/h2\u003e\n\u003cp\u003eIndependent over-voltage and over-current thresholds, both set from the front panel. When either limit trips, the supply latches output off and posts the trigger on the LCD — the kind of unambiguous fault state that matters when a DUT failure during overnight characterization could otherwise damage hardware or lose a test run. Thresholds persist across power cycles and survive front-panel lock for unattended operation.\u003c\/p\u003e\n\u003ch2\u003eList Output and Delay Function\u003c\/h2\u003e\n\u003cp\u003eList mode programs up to 512 voltage\/current\/time groups, executed in sequence — essential for high-voltage stress profiles (gradual ramp to 150 V dielectric withstand levels), PV emulation sequences (irradiance-dependent V\/I curves over the day), or any time-varying high-voltage characterization. The delay function programs output on\/off sequencing for HiPot test cycling. Files save to Flash or USB in \u003ccode\u003e.lst.csv\u003c\/code\u003e and \u003ccode\u003e.dly.csv\u003c\/code\u003e formats — Excel-editable.\u003c\/p\u003e\n\u003ch2\u003eSlope Mode Options\u003c\/h2\u003e\n\u003cp\u003eThree configurable slope modes — Normal, Voltage Slope (VSR), and Current Slope (ISR) — that matter most at 150 V where uncontrolled rail ramps into capacitive loads (PV inverter input caps, dielectric test fixtures, gate-driver bias networks) can saturate inrush limiters or trigger DUT protection. VSR ramps voltage at a configurable rate per second; ISR ramps current. Soft-start at a known rate, every time.\u003c\/p\u003e\n\u003ch2\u003eAuto Range Functionality\u003c\/h2\u003e\n\u003cp\u003e150 V at 1.33 A or 5 A at 40 V — both within the 200 W envelope, both from a single front panel, both reconfigured on demand without changing instruments. For high-voltage prototyping where the DUT's operating point sweeps across the V\/I plane (PV emulation, high-voltage gate driver supply, dielectric stress), the UDP6933B replaces a fixed-range high-voltage supply plus a low-voltage characterization supply with one instrument.\u003c\/p\u003e\n\u003ch2\u003eBuilt-in Digital Voltmeter (DVM)\u003c\/h2\u003e\n\u003cp\u003eA built-in 4½-digit voltmeter measures DC voltage on a separate rear-panel pair, displayed alongside the supply's own readbacks on the LCD. For a two-rail bench scenario — measuring the load's regulated DC at the same time the supply is sourcing it — the DVM eliminates a second instrument. Range is 0.001–65.000 V on the 60 V models, up to 160 V on the UDP6933B and UDP6953B.\u003c\/p\u003e\n\u003ch2\u003eMultiple Main Menu Options\u003c\/h2\u003e\n\u003cp\u003eThe main menu structure is shallow by design. Five top-level sections — Monitor, System Settings, User Group, Output Settings, Language — each one or two presses from the front panel. Monitor displays live V\/I\/P\/DVM with per-channel alarms when set conditions deviate. Output Settings configure operating mode, power-up output, and slope. System Settings hold backlight, sound, RS-232\/network, and a factory-default restore. The menu hierarchy never exceeds two levels — depth defeats front-panel work, and the UDP6900 doesn't ask the operator to memorize trees.\u003c\/p\u003e\n\u003ch2\u003eComputer Software and Remote Control\u003c\/h2\u003e\n\u003cp\u003eThe UDP6900 series ships with free PC control software — UNI-T's UDP9000 host application, common across the programmable PSU line. Set voltage and current remotely, log readbacks to disk, sequence list and delay programs, and automate complete characterization runs without writing a SCPI parser. For scripted environments, the supply speaks SCPI, Multi-SCPI, and Modbus RTU natively over USB-Device, RS-232, RS-485, or LAN — pick the bus that fits the test station.\u003c\/p\u003e\n\u003ch2\u003eMulti-Machine Communication\u003c\/h2\u003e\n\u003cp\u003eRS-485 networking links multiple UDP6900 supplies to a single host. Master\/slave configurations enable series-stack for higher voltage or parallel-stack for higher current — useful for multi-rail bench setups or when a single test station needs more total power than one chassis provides. One SCPI session, many supplies, synchronized output.\u003c\/p\u003e\n\u003ch2\u003eWeb Control\u003c\/h2\u003e\n\u003cp\u003eLAN connection brings up an embedded web server — open the supply's IP in any browser to set parameters, run list and delay programs, and configure system settings. No vendor application install on the host machine, no driver headache when the bench runs Linux or a tablet workstation. For shared lab benches and remote-monitored automation, the browser interface is often the cleanest path.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eHigher-Voltage Power Electronics R\u0026amp;D\u003c\/h3\u003e\n\u003cp\u003e150 V output suits SiC and GaN gate-drive supply emulation, 100V-class DC bus characterization, MOSFET\/IGBT bias-supply testing, and the higher-voltage power-electronics workloads where 60V models run short. Slope control gives controlled rise\/fall for sensitive HV gate-drive circuits.\u003c\/p\u003e\n\u003ch3\u003eBuilt-In DVM for HV Measurement\u003c\/h3\u003e\n\u003cp\u003eThe integrated 4½-digit voltmeter measures up to 160V DC through the rear inputs — a second monitoring point on the DUT without an external instrument. Useful for HV bus voltage tracking during converter or inverter development.\u003c\/p\u003e\n\u003ch3\u003eTest Lab \u0026amp; Industrial Automation\u003c\/h3\u003e\n\u003cp\u003eFull SCPI over USB, RS-232, RS-485, and LAN integrates into VISA-based and PLC-controlled test rigs. Web control via browser. External analog interface accepts 0–10V control input for multi-supply coordination.\u003c\/p\u003e\n\u003ch3\u003eComponent Stress Testing\u003c\/h3\u003e\n\u003cp\u003eList mode runs HV bias-stress profiles for capacitor, transformer, and isolation testing. OVP\/OCP set independently for tight protection envelopes when sourcing close to a DUT's voltage limit. Auto-range gives flexible V\/I combinations within the 200W envelope.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–150 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 20 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 20 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV (\u0026lt; 100 V), 10 mV (≥ 100 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.04% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.04% + 30 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 30 mVp-p\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 6 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Sense Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e215 × 88 × 373.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower Cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eWhat does the built-in DVM measure on this model?\u003c\/h3\u003e\n\u003cp\u003eOn the UDP6933B, the built-in 4½-digit voltmeter measures DC voltages up to 160V through rear-panel terminal inputs (vs 65V on the lower-voltage UDP6900B models). Useful for monitoring a second voltage point on the DUT — e.g., HV bus voltage during converter dev — without an external instrument.\u003c\/p\u003e\n\u003ch3\u003eWhat does auto-range mean?\u003c\/h3\u003e\n\u003cp\u003eAuto-range means the supply delivers any voltage\/current combination within the rated 200W envelope. The UDP6933B can output 150V at reduced current or 5A at reduced voltage — the power limit is the constraint, not fixed V\/I maximums independently.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the UDP6700 and UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThis family (UDP6900B) sits above the UDP6700, adding auto-range output, slope control, built-in DVM, web control over LAN, RS-485 for multi-machine networking, USB Device, Modbus RTU, and external analog control. UDP6700 provides the core CV\/CC + list-mode + remote-compensation feature set with RS-232 SCPI at a lower price.\u003c\/p\u003e\n\u003ch3\u003eCan I connect multiple UDP6900B units for higher power?\u003c\/h3\u003e\n\u003cp\u003eYes. Multi-machine communication via RS-485 enables master\/slave configurations — connect units in series for higher voltage or parallel for higher current, controlled from a single master or via SCPI commands.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UDP6933B?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6933B ships with the instrument, power cable Test leads and sense leads available separately.\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849806048,"sku":"181400100156X","price":782.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6933b-200w-150v5a-programmable-dc-switching-power-supply-181400100156x-7883026.jpg?v=1786149189"},{"product_id":"udp1306c-1ch-192w-32v-6a-programmable-linear-dc-power-supply","title":"UDP1306C 1Ch 192W 32V\/6A Programmable Linear DC Power Supply","description":"\u003ch1\u003eThe UDP1306C is a single-channel programmable linear DC power supply delivering 0–32 V at 0–6 A — 192 W of clean DC from a value-tier instrument.\u003c\/h1\u003e\n\u003cp\u003eThe 32 V ceiling and 6 A current capability cover most service-shop and bench needs (powering boards under repair, driving solenoids and small motors, sourcing test current for relay coils, validating regulated subsystems against their input rails), and the linear topology keeps output ripple under 2 mVrms.\u003c\/p\u003e\n\u003cp\u003eAn auxiliary fixed 5 V \/ 2 A output handles logic-side power on a board under test while the main channel sources the load — useful when characterizing a regulated subsystem against its input rail. SCPI over USB-Device or RS-232 lets the UDP1306C join an automated test setup at the same control reach as the higher-tier UDP3000C three-channel platform; five preset storage groups, shutdown memory, and a Digital I\/O hardware ON\/OFF pin pair round out the workflow set.\u003c\/p\u003e\n\u003cp\u003eFor industrial maintenance, equipment service, single-rail bench work, teaching labs, and DIY\/hobbyist electronics where one programmable rail at 6 A is the right answer, the UDP1306C is the value-tier point in UNI-T's linear PSU lineup.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003eThe UDP1306C fits the workflow we call \u003cstrong\u003eDesign. Debug. Deploy.\u003c\/strong\u003e — the three-act cycle most engineering teams actually run a power supply through. \u003cbr\u003e\u003cbr\u003eIn \u003cstrong\u003eDesign\u003c\/strong\u003e, five preset storage groups and shutdown memory let a planned voltage profile execute repeatably while the rest of the bench attends to capture and analysis. \u003cbr\u003e\u003cbr\u003eIn \u003cstrong\u003eDebug\u003c\/strong\u003e, OVP\/OCP\/OTP protections, the auxiliary 5 V \/ 2 A logic-side rail, and three-window 4-digit V\/I readout make it safe to push a marginal load and see exactly what's happening at the terminals. \u003cbr\u003e\u003cbr\u003eIn \u003cstrong\u003eDeploy\u003c\/strong\u003e, SCPI over USB-Device or RS-232 means the same supply that ran on the design bench can drop into a production rack or service station and be controlled by the same scripts. One instrument, three phases, no relearning.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0–32 V \/ 0–6 A single-channel main output\u003c\/strong\u003e — 192 W rated. The 32 V ceiling covers automotive and industrial 24 V rails with margin; the 6 A capability handles most single-rail bench work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary fixed 5 V \/ 2 A output\u003c\/strong\u003e — independent rail with its own short-circuit and over-voltage protection. Powers logic-side circuits while the main channel drives the load under test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinear topology, ≤2 mVrms ripple\u003c\/strong\u003e — pass-element regulation. Load regulation ≤0.01% + 3 mV in CV mode. Clean for low-noise analog work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCPI programmable\u003c\/strong\u003e — USB-Device + RS-232 with full SCPI command set, same control reach as the higher-tier UDP3000C platform.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 mV \/ 1 mA setting resolution\u003c\/strong\u003e — three-window 4-digit V\/I display (set value \/ output value \/ selectable third readout).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP \/ OCP \/ OTP protection\u003c\/strong\u003e — configurable thresholds plus over-temperature shutdown. Auxiliary 5 V \/ 2 A rail has independent short-circuit and over-voltage protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive preset storage groups\u003c\/strong\u003e — save and recall full instrument states for fast bench setup. Shutdown memory restores last settings on power-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware output ON\/OFF via Digital I\/O\u003c\/strong\u003e — back-panel pin pair for external interlock circuits, panic buttons, or test-fixture safety integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-panel 5 V \/ 2 A USB-A charging port\u003c\/strong\u003e — independent USB-A receptacle for charging a phone or powering a USB device. Charging only — the SCPI data interfaces are USB-Device and RS-232 on the back panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeypad lock + output setting viewable\u003c\/strong\u003e — lock the front-panel keys to preserve a known-good test condition; view stored setpoints without disturbing the live output.\u003c\/li\u003e\n\u003cli\u003eIntelligent cooling fan — load- and temperature-controlled; quiet at light load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSingle-Channel Linear at the Value Tier\u003c\/h2\u003e\n\u003cp\u003eLinear pass-element regulation, single adjustable channel, 0–32 V at 0–6 A, 192 W — built for general-purpose bench work, industrial maintenance, equipment service, teaching labs, and DIY\/hobbyist electronics. 6 A on a single rail covers most service-shop power needs (powering boards under repair, driving solenoids and small motors, sourcing test current for relay coils), and the linear topology keeps output ripple under 2 mVrms — clean for low-noise analog work that doesn't need the higher-tier UDP3000C platform.\u003c\/p\u003e\n\u003cp\u003eThree-window 4-digit voltage and current display (set value, output value, and a selectable third readout) keeps the instrument legible across the bench. 10 mV \/ 1 mA setting resolution. Constant-voltage and constant-current modes with automatic crossover. Load regulation ≤0.01% + 3 mV in CV; ≤0.1% + 10 mA in CC.\u003c\/p\u003e\n\u003ch2\u003eSCPI Control Over USB-Device or RS-232\u003c\/h2\u003e\n\u003cp\u003eThe UDP1306C carries the same SCPI command interface as the UDP3000C platform: back-panel USB-Device and RS-232 ports, with a Digital I\/O pin pair for hardware ON\/OFF remote control. For test-fixture integration on a service bench, automated burn-in stations, and small-batch production test, SCPI gives the same automation reach as higher-tier UDP3000C-platform supplies.\u003c\/p\u003e\n\u003cp\u003eVoltage and current setpoint, OVP\/OCP threshold, output enable, memory recall, and readback are all accessible from a host script. Five preset storage groups keep frequently used configurations available for fast recall under SCPI. The Digital I\/O ON\/OFF pin pair enables external interlocks and safety circuits without needing software intervention.\u003c\/p\u003e\n\u003ch2\u003eAuxiliary 5 V \/ 2 A Output and Front-Panel USB Charging\u003c\/h2\u003e\n\u003cp\u003eThe UDP1306C carries two fixed-voltage 5 V \/ 2 A outputs in addition to the main adjustable channel — and they're not the same rail.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eauxiliary 5 V \/ 2 A output\u003c\/strong\u003e is a screw-terminal rail on the back panel for wiring into the DUT. It has its own short-circuit and over-voltage protection on the rail itself, so a fault on the logic side won't take down the main bench supply. Use it to power logic-side circuits on a board under test while the main 0–32 V channel sources the regulated rail you're tuning.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003efront-panel 5 V \/ 2 A USB-A charging port\u003c\/strong\u003e is a USB-A receptacle for charging a phone, powering a USB-powered device, or running a USB lamp on the bench. Charging only — no data lines. The SCPI data interfaces are USB-Device and RS-232 on the back panel, distinct from this charging port.\u003c\/p\u003e\n\u003ch2\u003eOVP \/ OCP \/ OTP Protection\u003c\/h2\u003e\n\u003cp\u003eThree independent protections cover the most common ways a load fails: a short or low-impedance fault drives current up (OCP), a misconfigured DUT pulls voltage out of spec (OVP), or a sustained over-load heats the supply itself (OTP). All three trip the output off and display a fault state on the front panel.\u003c\/p\u003e\n\u003cp\u003eOVP and OCP thresholds are user-configurable via the front-panel keys. OTP is internal and not user-configurable. The auxiliary 5 V \/ 2 A rail has independent short-circuit and over-voltage protection on the rail itself, separate from the main channel's OVP\/OCP — meaning a logic-side fault on the auxiliary rail does not affect the main channel and vice versa.\u003c\/p\u003e\n\u003ch2\u003eFive Preset Storage Groups and Hardware ON\/OFF\u003c\/h2\u003e\n\u003cp\u003eFive preset storage groups save and recall the full instrument state — voltage setpoint, current setpoint, OVP and OCP thresholds, output enable. Recall is a single front-panel keypress; the SCPI command set exposes the same recall under remote control. \u003cstrong\u003eShutdown memory\u003c\/strong\u003e restores the last operating state on power-up: a clean line-cycle interruption resumes operation at the prior settings, useful when a bench needs to come back online without manual reconfiguration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHardware ON\/OFF via Digital I\/O.\u003c\/strong\u003e The back-panel Digital I\/O pin pair enables external control of the output state — TTL-level input toggles the main channel on or off without needing software involvement. Useful for external interlocks (panic-button kills the output before software can react), test-fixture safety integration (DUT cover open ⇒ output off), and any scenario where output state needs to follow a hardware signal.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eIndustrial Maintenance and Equipment Service\u003c\/h3\u003e\n\u003cp\u003eSingle-channel 0–32 V \/ 6 A covers most service-shop power needs: powering boards under repair, driving solenoids and small motors, sourcing test current for relay coils, validating regulated subsystems. The 32 V ceiling and 6 A current capability handle 24 V-rail equipment with headroom; SCPI integrates the supply into existing test fixtures and burn-in stations. The auxiliary 5 V \/ 2 A output handles logic-side power on a board under repair while the main channel sources the rail being tested.\u003c\/p\u003e\n\u003ch3\u003eDIY Electronics and Hobbyist Workshops\u003c\/h3\u003e\n\u003cp\u003eProgrammable linear supply at the price point hobbyist budgets allow. The auxiliary 5 V \/ 2 A output handles logic-side power on the board you're building while the main channel sources the rail you're tuning. The 32 V ceiling covers higher-voltage prototypes that 30 V supplies clip against. Front-panel USB charging port powers a logic analyzer, multimeter, or any USB-powered bench accessory without needing a separate wall-wart.\u003c\/p\u003e\n\u003ch3\u003eTeaching Labs and Trade Schools\u003c\/h3\u003e\n\u003cp\u003eSingle-channel programmable supply at a per-station cost that lets a teaching lab equip a 20-bench classroom inside budget. Five preset storage groups let a single instrument support multiple lab exercises without manual reconfiguration each session.\u003c\/p\u003e\n\u003ch3\u003eSmall-Batch Production Test\u003c\/h3\u003e\n\u003cp\u003eProgrammable single-rail supply at a price point that allows deploying multiple instances on a small-batch production line. SCPI over USB-Device or RS-232 scripts the test sequence; the auxiliary 5 V \/ 2 A output handles logic-side power on the unit under test while the main rail drives the load. Hardware Digital I\/O ON\/OFF supports panic-button and interlock integration on test fixtures.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eOutput Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Channel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–32 V \/ 0–6 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuxiliary Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 V \/ 2 A fixed (with short-circuit and over-voltage protection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Main-Channel Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e192 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront-Panel USB Charging Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 V \/ 2 A USB-A (charging only, no data lines)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProgramming Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: 10 mV \/ I: 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (25 °C ± 5 °C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.5% + 20 mV \/ I: ≤0.5% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eRegulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (CV)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.01% + 3 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (CC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eI: ≤0.1% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (CV)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤0.01% + 3 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (CC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eI: ≤0.1% + 3 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (20 Hz–20 MHz)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV: ≤2 mVrms \/ I: ≤3 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤300 ppm\/°C (V\/I)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Rise\/Fall Time Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤100 ms (10% rated load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eDisplay \u0026amp; Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-window 4-digit voltage and current high-precision display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 preset storage groups + shutdown memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Channel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, OTP, keypad lock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAuxiliary 5 V \/ 2 A Rail\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndependent short-circuit and over-voltage protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB-Device, RS-232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital I\/O hardware ON\/OFF pin pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB Host \/ 5 V \/ 2 A (front panel, USB-A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eAC Input \u0026amp; Cooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 \/ 120 \/ 220 \/ 230 V ±10%, 50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntelligent fan (load- and temperature-controlled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eMechanical \u0026amp; Compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e136 × 194 × 327 mm (5.35 × 7.64 × 12.87 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 kg (16.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCompliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECCN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3A992.a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003cp\u003eEvery UDP1306C ships with the instrument, a region-specific power cord, a USB communication cable, output cables, an English user manual and a factory calibration certificate.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUDP1306C instrument\u003c\/li\u003e\n\u003cli\u003ePower cord (region-specific)\u003c\/li\u003e\n\u003cli\u003eUSB communication cable\u003c\/li\u003e\n\u003cli\u003eOutput cables\u003c\/li\u003e\n\u003cli\u003eEnglish user manual\u003c\/li\u003e\n\u003cli\u003eFactory calibration certificate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eUDP1306C vs UDP6700 \/ UDP6900B — linear vs switching, when to choose which?\u003c\/h3\u003e\n\u003cp\u003eThe UDP1306C is linear; the UDP6700 and UDP6900B series are switching. The choice is mostly about ripple and noise floor versus efficiency and current-rating-per-dollar.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose linear (UDP1306C)\u003c\/strong\u003e when low ripple and clean noise floor matter more than power density — analog circuit work, audio, low-noise sensor characterization, anything where ≤2 mVrms output ripple is worth the trade-off in size and weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose switching (UDP6700)\u003c\/strong\u003e when you need higher rated power per chassis dollar and the load is digital or insensitive to switching noise — industrial maintenance with mid-current loads, automotive subsystem testing, motor-drive bench work. UDP6700 also offers wide-range power-ratio-3.0 envelopes that linear topologies cannot match.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose UDP6900B\u003c\/strong\u003e when the bench needs LAN with web control, USB-Host, RS-485 with Modbus, slope mode, auto-range, multi-machine daisy-chain, and a built-in DVM in addition to high-current switching output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's the difference between the UDP1306C and the UDP3303C?\u003c\/h3\u003e\n\u003cp\u003eChannel count and form factor. The UDP1306C is a single-channel value-tier instrument (1 main adjustable + 1 fixed 5 V \/ 2 A auxiliary). The UDP3303C is a three-channel UDP3000C-platform supply (CH1 + CH2 adjustable + CH3 logic-rail selector). Choose UDP1306C if you need one programmable rail at this price point; choose UDP3303C if you need the multi-channel CH3 logic-rail flexibility on the higher-tier platform.\u003c\/p\u003e\n\u003ch3\u003eDoes the UDP1306C have LAN?\u003c\/h3\u003e\n\u003cp\u003eNo. The UDP1306C's data interfaces are USB-Device and RS-232 only. The Digital I\/O pin pair on the back panel handles hardware ON\/OFF — useful for external interlocks but not for data communication. For LAN with LXI\/web interface, the UDP3000S series adds it on the higher-tier multi-channel linear platform.\u003c\/p\u003e\n\u003ch3\u003eWhat is the auxiliary 5 V \/ 2 A output for, and how is it different from the front-panel USB charging port?\u003c\/h3\u003e\n\u003cp\u003eThe auxiliary 5 V \/ 2 A output is a fixed-voltage rail on screw terminals at the back panel — for wiring into the DUT to power logic-side circuits while the main 0–32 V \/ 6 A channel sources the rail you're tuning. The auxiliary rail has its own short-circuit and over-voltage protection on the rail itself, so a fault on the logic side won't take down the main bench supply. The front-panel 5 V \/ 2 A USB-A port is a separate, independent receptacle for charging a phone or powering a USB device — charging only, no data lines. They are two different physical outputs at the same nominal voltage.\u003c\/p\u003e\n\u003ch3\u003eCan the UDP1306C run automated voltage sweeps?\u003c\/h3\u003e\n\u003cp\u003eYes — SCPI control over USB-Device or RS-232 supports remote voltage and current setpoint commands plus readbacks. Five preset storage groups keep frequently used configurations available for fast recall. For complex programmable waveform output (list mode and trigger delayer), the UDP3000S series and the switching UDP6700\/UDP6900B series add those capabilities.\u003c\/p\u003e\n\u003ch3\u003eWhy is the rated output power 192 W if 32 V × 6 A = 192 W?\u003c\/h3\u003e\n\u003cp\u003e192 W is the rated output power, which equals the maximum simultaneous voltage × current product the supply can deliver continuously on the main channel. The 32 V ceiling and 6 A ceiling are the individual maxima; the supply can deliver any voltage\/current combination inside the 192 W envelope, including 32 V at lower currents or 6 A at lower voltages. The auxiliary 5 V \/ 2 A rail (10 W) is independent of the main channel's 192 W budget; the front-panel USB charging port (also 5 V \/ 2 A, 10 W) is a third independent output and likewise does not draw from the main channel's budget.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849904352,"sku":"181730080298X","price":282.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp1306c-1ch-192w-32v6a-programmable-linear-dc-power-supply-181730080298x-4572029.jpg?v=1786149189"},{"product_id":"utp3315tfl-ii-1ch-150w-30v-5a-linear-dc-power-supply","title":"UTP3315TFL-II 1Ch 150W 30V\/5A Linear DC Power Supply","description":"\u003ch1\u003eThe UTP3315TFL-II is a single-channel linear bench supply at the size, weight and price point that makes sense for the bench it's actually going to live on.\u003c\/h1\u003e\n\u003cp\u003eUNI-T calls it \"an economical benchtop tool for DIY electronics hobbyists, electronics manufacturing and testing\", which is the most accurate one-line description we can offer. 150W of linear DC at 0–30V \/ 0–5A, in a footprint of 105 × 165 × 249 mm and a 4 kg net weight.\u003c\/p\u003e\n\u003cp\u003eA four-digit LED display reads voltage and current at 10 mV \/ 1 mA resolution per channel. Auto CV\/CC crossover with current limit protection handles unknown loads safely. The 5A current rating handles small motors, transmitter front-ends, higher-current LED arrays, and the kind of higher-power prototyping that the 3A UTP3313TFL-II runs short on. No firmware, no network port, no PC software stack.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Channel, 150W Linear Output\u003c\/strong\u003e — 0–30V \/ 0–5A from a linear regulator. Clean, low-ripple output (≤2 mVrms) suitable for analog work, transmitter projects, motor-drive prototyping, and higher-current bench tasks where switching noise is unwelcome.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Digit LED Display, 10 mV \/ 1 mA\u003c\/strong\u003e — High-resolution voltage and current readouts. Set the rail accurately; see what the load is actually drawing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto CV\/CC Crossover with Current Limit Protection\u003c\/strong\u003e — The supply transitions automatically between constant-voltage and constant-current operation when the load steps. Protects the DUT during fault conditions and the supply during overload.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Footprint, Light Weight\u003c\/strong\u003e — 105 × 165 × 249 mm, 4 kg. Fits next to a scope on a crowded bench, lifts with one hand, packs into a service van without rearranging the back.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet-Point Programming Accuracy\u003c\/strong\u003e — \u0026lt;0.5% + 20 mV on voltage, \u0026lt;0.5% + 10 mA on current — published set-point accuracy that lets you trust the dial reading for precision work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnob-and-Button Operation\u003c\/strong\u003e — No firmware to update, no PC software to install, no LAN port to configure. Front-panel only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThe Bench Supply Sized for the Bench It's Actually On\u003c\/h2\u003e\n\u003cp\u003eMost three-channel bench supplies are 8–10 kg in a 260+ mm-wide chassis — perfectly reasonable on a permanent lab bench, considerably less reasonable on a hobbyist workbench, a maker space's shared station, or a service tech's mobile cart. The UTP3315TFL-II is what UNI-T's product line offers when one channel is enough but the current rating needs headroom.\u003c\/p\u003e\n\u003cp\u003eFor DIY electronics with motor or RF loads, kit assembly, board-level repair work on power-stage circuits, and second-supply duty next to a multi-channel main supply, the value math here is clean. 150W of linear DC at 10 mV \/ 1 mA resolution, at a price the bench-supply line's three-channel models can't approach. When you only need one rail at higher current, you only pay for one rail.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eDIY Electronics \u0026amp; Hobbyist Workshops\u003c\/h3\u003e\n\u003cp\u003eUNI-T's own datasheet positions this supply for \"DIY electronics hobbyists, electronics manufacturing and testing.\" The 5A capability handles amateur radio rigs, EV-conversion bench testing, motor-driven robotics prototyping, and the higher-power projects that the 3A model runs short on.\u003c\/p\u003e\n\u003ch3\u003eTeaching Labs \u0026amp; Trade Schools\u003c\/h3\u003e\n\u003cp\u003eOne supply per station at a per-station cost that lets a 30-bench classroom stay in budget — with the current capability for higher-power lab exercises (motor drive, power amplifiers, LED arrays). Compact footprint leaves bench space for the scope and the DMM.\u003c\/p\u003e\n\u003ch3\u003eService \u0026amp; Repair\u003c\/h3\u003e\n\u003cp\u003eReliable single-rail bench supply for board-level service work where the device under test is a higher-current load — small motor drives, switch-mode supplies under test, automotive electronics, audio amplifier service. CV\/CC auto crossover handles unknown loads safely.\u003c\/p\u003e\n\u003ch3\u003eSecond-Rail Bench Companion\u003c\/h3\u003e\n\u003cp\u003eWhen your main bench supply is occupied with the primary DUT, the UTP3315TFL-II handles auxiliary rails at higher current — supplying motor drivers under separate test, larger-load adapter boards, or quick test setups that don't justify reconfiguring the main supply.\u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003cp\u003eIncluded in box:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUTP3315TFL-II\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCV ≤0.01% + 5 mV\u003cbr\u003eCC ≤0.1% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Accuracy (25°C ±5°C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage: \u0026lt;0.5% + 20 mV\u003cbr\u003eCurrent: \u0026lt;0.5% + 10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Regulation Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCV: 10 mV (typical)\u003cbr\u003eCC: 1 mA (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤2 mVrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED voltage and current dual display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAuto CV\/CC crossover with current limit protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReliability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMTBF ≥ 2,000 hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110V \/ 220V ±5% AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W×H×D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e105 × 165 × 249 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3\u003eDoes the UTP3315TFL-II have USB or SCPI?\u003c\/h3\u003e\n\u003cp\u003eNo. The UTP3315TFL-II is a fully analog, knob-and-button bench supply — no USB data interface, no LAN, no SCPI command set, no PC software. The \"Programming accuracy\" specification on the datasheet refers to set-point accuracy (how close the actual output is to the dial reading), not remote programmability. If your workflow needs SCPI control, the programmable counterparts in the UNI-T linear PSU family are the UDP3303C and UDP3305C (USB + RS-232) and the UDP3000S series (USB + LAN + LXI).\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the UTP3315TFL-II and the UTP3313TFL-II?\u003c\/h3\u003e\n\u003cp\u003eOutput current. UTP3315TFL-II delivers 0–5A (150W total). UTP3313TFL-II delivers 0–3A (90W total). Voltage range, display, and physical dimensions are identical between the two. The 5A model has a slightly relaxed ripple spec (≤2 mVrms vs ≤1 mVrms) reflecting the higher-current rectifier stage. Choose the 3A model for general analog work; choose the 5A model when current headroom matters more than the last factor-of-two on ripple.\u003c\/p\u003e\n\u003ch3\u003eWhy a linear supply instead of switching?\u003c\/h3\u003e\n\u003cp\u003eLinear topology produces fundamentally cleaner output — no switching frequency, no harmonic spurs, ripple under 2 mVrms. For analog bench work, audio circuits, low-noise sensor development, and any precision measurement where supply noise shows up in the result, the difference is measurable. The trade-off is lower efficiency and more heat, which at 150W in a 4 kg chassis is acceptable for the price-to-cleanliness ratio.\u003c\/p\u003e\n\u003ch3\u003eWhat's included with the UTP3315TFL-II?\u003c\/h3\u003e\n\u003cp\u003eThe UTP3315TFL-II ships with the instrument, an international standard power cord, test output line Ships from authorized US dealer.\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849773280,"sku":"181730080285X","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/utp3315tfl-ii-1ch-150w-30v5a-linear-dc-power-supply-181730080285x-7880677.png?v=1786149187"},{"product_id":"udp6922b-100w-60v-5a-programmable-dc-switching-power-supply","title":"UDP6922B 100W 60V\/5A Programmable DC Switching Power Supply","description":"\u003ch1\u003eThe UDP6922B is the entry-tier of UNI-T's UDP6900B programmable DC switching family — 100W at 60V\/5A, with the same full feature set (auto-range, slope control, built-in DVM, web control, multi-machine RS-485) as it's higher-power siblings.\u003c\/h1\u003e\n\u003cp\u003eSized for sensor and low-ripple component evaluation, embedded prototyping, and small-team test lab work where the supply is one of several instruments rather than the headline.\u003c\/p\u003e\n\u003cp\u003eFull programmable interface set: USB Device, USB Host, RS-232, RS-485, LAN with web control, and external analog I\/O — with SCPI, Multi-SCPI, and Modbus RTU command support. Built-in 4½-digit DVM monitors a second voltage point on the DUT without an external instrument. Slope control configures rise\/fall rates independently in voltage-slope (VSR) and current-slope (ISR) modes for soft start\/stop. Remote sense (S+\/S−) compensates for IR drop on the test leads. List mode and delayer functions program up to 512 voltage\/current\/time groups, stored to internal Flash or USB.\u003c\/p\u003e\n\u003ch2\u003eAcross the Design. Debug. Deploy.™ Lifecycle\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDesign.\u003c\/strong\u003e Sourcing the bench supply for sensor and low-power component characterization is the first commit. 100 W at 60 V \/ 5 A with 1 mV \/ 0.1 mA resolution covers the envelope this work needs, with the four-wire sense and slope-controlled startup that DUT-protective work requires from the first turn-on. Programmable from the front panel or remotely — list mode, slope control, OVP\/OCP, and DVM are first-class controls, not buried menu options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDebug.\u003c\/strong\u003e At validation, the 4½-digit DVM and 512-group list mode replace a second DMM and an external sequencer. Capture power-up profiles, automate sweeps, and record DUT-side voltage drift while sourcing — without leaving the supply's front panel or rebuilding the test harness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDeploy.\u003c\/strong\u003e Production go\/no-go testing runs over LAN with SCPI, Multi-SCPI, or Modbus RTU. The web server gives a shared bench remote access without a host-software install. RS-485 multi-machine networking scales the station as the throughput requirement does. From first prototype to production verification — design, debug, deploy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100W Auto-Range Output (0–60V, 0–5A)\u003c\/strong\u003e — Flexible V\/I combinations within rated power. One supply handles multiple test configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy \u0026amp; Low Ripple\u003c\/strong\u003e — 1 mV\/0.1 mA resolution with low ripple and noise for sensitive DUT testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOVP\/OCP Protection\u003c\/strong\u003e — Independent over-voltage and over-current protection with configurable thresholds protects devices under test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eList Mode \u0026amp; Delay Function\u003c\/strong\u003e — Program voltage\/current sequences with configurable timing for automated test profiles and battery charge simulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlope Control\u003c\/strong\u003e — Configurable rise\/fall rates for soft start\/stop, preventing inrush damage to sensitive loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Sense\u003c\/strong\u003e — Four-wire sensing compensates for voltage drop in test leads, ensuring accurate voltage at the load terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In DVM\u003c\/strong\u003e — Independent digital voltmeter for monitoring a second voltage point without additional equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Remote Control \u0026amp; Multi-Machine\u003c\/strong\u003e — Browser-based control via LAN. Master\/slave communication for series\/parallel multi-unit configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFront-Panel Interface\u003c\/h2\u003e\n\u003cp\u003eA 4.3-inch true color LCD shows set voltage and current alongside actual output values, with output power computed and displayed in real time. The numeric keypad sets values directly without menu diving; the rotary encoder fine-tunes when a small adjustment is faster than typing. Soft-keys map to the function actually in use — list mode, slope, OVP\/OCP, or DVM — instead of burying them in nested menus. Output enable is a dedicated hardware button, always visible, never one click away from a keystroke mistake.\u003c\/p\u003e\n\u003ch2\u003eRemote Sense\u003c\/h2\u003e\n\u003cp\u003eLong test leads drop voltage. At higher currents, the drop is no longer a rounding error — a 10 A draw across a meter of 16 AWG returns roughly 50 mV less to the load than the supply set. The UDP6900 series corrects for this with four-wire remote sense: connect the output's \u003cstrong\u003e+\u003c\/strong\u003e and \u003cstrong\u003e−\u003c\/strong\u003e terminals to the load through the current-carrying leads, then run a separate pair from \u003cstrong\u003eS+\u003c\/strong\u003e and \u003cstrong\u003eS−\u003c\/strong\u003e directly to the device under test. The supply servo's regulation point shifts from its own terminals to the load's terminals — and the 1 V SENSE compensation headroom keeps the rail accurate where it actually matters.\u003c\/p\u003e\n\u003ch2\u003eOver-Voltage\/Over-Current Protection (OVP\/OCP)\u003c\/h2\u003e\n\u003cp\u003eIndependent over-voltage and over-current thresholds, both set from the front panel. When either limit trips, the supply latches output off and posts the trigger on the LCD — the kind of unambiguous fault state that matters when a DUT failure during overnight characterization could otherwise damage hardware or lose a test run. Thresholds persist across power cycles and survive front-panel lock for unattended operation.\u003c\/p\u003e\n\u003ch2\u003eList Output and Delay Function\u003c\/h2\u003e\n\u003cp\u003eList mode programs up to 512 voltage\/current\/time groups, executed in sequence — useful at 100 W for automated bias-sweep characterization of low-power circuits, sensor drain profiling, or programmed wake-up sequences for IoT devices under test. The delay function programs output on\/off sequencing for power-cycling reliability tests. Both modes save to Flash or USB in \u003ccode\u003e.lst.csv\u003c\/code\u003e and \u003ccode\u003e.dly.csv\u003c\/code\u003e formats — open in Excel, edit, reload. No vendor-proprietary editor required.\u003c\/p\u003e\n\u003ch2\u003eSlope Mode Options\u003c\/h2\u003e\n\u003cp\u003eThree configurable slope modes — Normal, Voltage Slope (VSR), and Current Slope (ISR) — let the supply ramp into the operating point at a controlled rate. At 100 W and 60 V, slope control matters most for sensitive analog DUTs and measurement-grade prototypes where rail step transients are observable in the noise floor. Normal mode for fast settle; VSR for soft start into capacitive loads; ISR for current-limited startup.\u003c\/p\u003e\n\u003ch2\u003eAuto Range Functionality\u003c\/h2\u003e\n\u003cp\u003eWithin the 100 W envelope, output reconfigures across the V\/I plane on demand: 60 V at 1.67 A for high-side characterization of low-side switches, 5 A at 20 V for gate-driver supply work, or any combination in between. One supply covers the bench positions a fixed 0–30 V × 0–3 A linear would normally require two of. The UDP6900 series I-V curve replaces a stack of small fixed supplies with a single auto-range instrument, controlled by a power limit, not a hardware range switch.\u003c\/p\u003e\n\u003ch2\u003eBuilt-in Digital Voltmeter (DVM)\u003c\/h2\u003e\n\u003cp\u003eA built-in 4½-digit voltmeter measures DC voltage on a separate rear-panel pair, displayed alongside the supply's own readbacks on the LCD. For a two-rail bench scenario — measuring the load's regulated DC at the same time the supply is sourcing it — the DVM eliminates a second instrument. Range is 0.001–65.000 V on the 60 V models, up to 160 V on the UDP6933B and UDP6953B.\u003c\/p\u003e\n\u003ch2\u003eMultiple Main Menu Options\u003c\/h2\u003e\n\u003cp\u003eThe main menu structure is shallow by design. Five top-level sections — Monitor, System Settings, User Group, Output Settings, Language — each one or two presses from the front panel. Monitor displays live V\/I\/P\/DVM with per-channel alarms when set conditions deviate. Output Settings configure operating mode, power-up output, and slope. System Settings hold backlight, sound, RS-232\/network, and a factory-default restore. The menu hierarchy never exceeds two levels — depth defeats front-panel work, and the UDP6900 doesn't ask the operator to memorize trees.\u003c\/p\u003e\n\u003ch2\u003eComputer Software and Remote Control\u003c\/h2\u003e\n\u003cp\u003eThe UDP6900 series ships with free PC control software — UNI-T's UDP9000 host application, common across the programmable PSU line. Set voltage and current remotely, log readbacks to disk, sequence list and delay programs, and automate complete characterization runs without writing a SCPI parser. For scripted environments, the supply speaks SCPI, Multi-SCPI, and Modbus RTU natively over USB-Device, RS-232, RS-485, or LAN — pick the bus that fits the test station.\u003c\/p\u003e\n\u003ch2\u003eMulti-Machine Communication\u003c\/h2\u003e\n\u003cp\u003eRS-485 networking links multiple UDP6900 supplies to a single host. Master\/slave configurations enable series-stack for higher voltage or parallel-stack for higher current — useful for multi-rail bench setups or when a single test station needs more total power than one chassis provides. One SCPI session, many supplies, synchronized output.\u003c\/p\u003e\n\u003ch2\u003eWeb Control\u003c\/h2\u003e\n\u003cp\u003eLAN connection brings up an embedded web server — open the supply's IP in any browser to set parameters, run list and delay programs, and configure system settings. No vendor application install on the host machine, no driver headache when the bench runs Linux or a tablet workstation. For shared lab benches and remote-monitored automation, the browser interface is often the cleanest path.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003ch3\u003eSensor \u0026amp; Low-Ripple Component Evaluation\u003c\/h3\u003e\n\u003cp\u003e1 mV \/ 0.1 mA setting resolution and ≤5 mVp-p ripple suit op-amp characterization, sensor bias measurement, and any precision DC supply work where supply ripple shows up in the result. Auto-range output reduces the number of fixed-range supplies on the bench.\u003c\/p\u003e\n\u003ch3\u003eSmall-Team Test Lab \u0026amp; Consultancy\u003c\/h3\u003e\n\u003cp\u003eFull SCPI\/Multi-SCPI\/Modbus over USB, RS-232, RS-485, and LAN integrates into VISA-based test frameworks. Web control accessible from any browser on the network. Multi-machine RS-485 enables synchronized multi-unit operation as the lab grows.\u003c\/p\u003e\n\u003ch3\u003eR\u0026amp;D Bench \u0026amp; Embedded Prototyping\u003c\/h3\u003e\n\u003cp\u003eBuilt-in DVM monitors a second voltage point on the DUT without an external instrument. Auto-range covers high-voltage\/low-current and low-voltage\/high-current tests from one supply. List mode programs voltage\/current sequences for automated test profiles.\u003c\/p\u003e\n\u003ch3\u003eIoT \u0026amp; Battery Drain Analysis\u003c\/h3\u003e\n\u003cp\u003eLow-current measurement with 0.1 mA resolution captures sleep-mode and standby behavior. Slope control provides soft start to prevent inrush damage. Programmable list output simulates battery discharge curves.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–60 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 3 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.05% + 2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.01% + 3 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine Regulation (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.05% + 2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mV (\u0026lt; 10 V), 1 mV (\u0026gt; 10 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Resolution (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.03% + 5 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSetting Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.03% + 5 mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReadback Accuracy (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 0.1% + 5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Voltage)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 5 mVp-p\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRipple \u0026amp; Noise (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e≤ 5 mArms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRemote Sense Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e215 × 88 × 373.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\u003ch3\u003eIncluded in box:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eEnglish download guide\u003c\/li\u003e\n\u003cli\u003emulti-language safety manual\u003c\/li\u003e\n\u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ's\u003c\/h4\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat does auto-range mean?\u003c\/h3\u003e\n\u003cp\u003eAuto-range means the supply delivers any voltage\/current combination within the rated 100W envelope. The UDP6922B can output 60V at reduced current or 5A at reduced voltage — the power limit is the constraint, not fixed V\/I maximums independently.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat's the difference between the UDP6700 and UDP6900B series?\u003c\/h3\u003e\n\u003cp\u003eThis family (UDP6900B) sits above the UDP6700, adding auto-range output, slope control, built-in DVM, web control over LAN, RS-485 for multi-machine networking, USB Device, Modbus RTU, and external analog control. UDP6700 provides the core CV\/CC + list-mode + remote-compensation feature set with RS-232 SCPI at a lower price.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eCan I connect multiple UDP6900B units for higher power?\u003c\/h3\u003e\n\u003cp\u003eYes. Multi-machine communication via RS-485 enables master\/slave configurations — connect units in series for higher voltage or parallel for higher current, controlled from a single master or via SCPI commands.\u003c\/p\u003e\n\u003ch3 class=\"product-faq-question\"\u003eWhat's included with the UDP6922B?\u003c\/h3\u003e\n\u003cp\u003eThe UDP6922B ships with the instrument, power cable Test leads and sense leads available separately.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":53779849871584,"sku":"181400100157X","price":521.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/udp6922b-100w-60v5a-programmable-dc-switching-power-supply-181400100157x-3344030.jpg?v=1786149189"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/collections\/dc-power-supplies-7033208.png?v=1785799807","url":"https:\/\/sper-direct.myshopify.com\/collections\/power-supplies.oembed","provider":"Sper Scientific Direct","version":"1.0","type":"link"}