{"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":"\u003cstyle\u003e\n.ut-cat{color:#333;font-family:Arial,Helvetica,sans-serif;line-height:1.5;}\n.ut-cat h4{color:#1a1a1a;font-size:1.15em;margin:1.5em 0 .5em;padding-bottom:.25em;border-bottom:2px solid #ccc;}\n.ut-cat h2{color:#1a1a1a;font-size:1.25em;margin:1.2em 0 .4em;}\n.ut-cat h3{color:#222;font-size:1.05em;margin:1em 0 .3em;}\n.ut-cat p{margin:.6em 0;}\n.ut-cat ul{margin:.5em 0;padding-left:1.4em;}.ut-cat li{margin:.25em 0;}\n.ut-cat img{max-width:100%;height:auto;}\n.ut-cat table{border-collapse:collapse;width:100%;margin:.5em 0;}\n.ut-cat th,.ut-cat td{border:1px solid #ddd;padding:6px 10px;text-align:left;vertical-align:top;}\n.ut-cat td strong{color:#222;}\n\u003c\/style\u003e\n\u003cdiv class=\"ut-cat\"\u003e\n\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003cp\u003eThe UNI-T UDP3305S-E is the \u003cstrong\u003eEducation variant of the Performance Series UDP3000S platform\u003c\/strong\u003e — 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\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\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 Series\/parallel\/tracking modes and 4-wire remote sense compensate for cable IR drop during validation. \u003cstrong\u003eDeploy.\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\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"product-key-features\"\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\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eDetailed Features\u003c\/h2\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"product-row\"\u003e\n\u003cdiv class=\"product-box product-left\"\u003e\n\u003cfigure class=\"product-figure\"\u003e\n\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1697217224\/UDP3000S-Display.png\" alt=\"UDP3305S-E 4.3-inch TFT showing real-time channel monitoring\" class=\"product-image-thumb\"\u003e\n\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP3305S-E 4.3-inch TFT — voltage, current, and power readouts plus configured limits in one view\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-box product-right\"\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1697217224\/UDP3000S-Display.png\" alt=\"UDP3305S-E 4.3-inch TFT showing real-time channel monitoring\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP3305S-E 4.3-inch TFT — voltage, current, and power readouts plus configured limits in one view\u003c\/span\u003e\n\n\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"product-row\"\u003e\n\u003cdiv class=\"product-box product-left\"\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\u003c\/div\u003e\n\u003cdiv class=\"product-box product-right\"\u003e\n\u003cfigure class=\"product-figure\"\u003e\n\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1695844986\/UDP3000S-Series.png\" alt=\"UDP3305S-E CH1+CH2 series and parallel output diagram\" class=\"product-image-thumb\"\u003e\n\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP3305S-E — one-key series (60V) or parallel (10A) combination of CH1 + CH2\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1695844986\/UDP3000S-Series.png\" alt=\"UDP3305S-E CH1+CH2 series and parallel output diagram\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP3305S-E — one-key series (60V) or parallel (10A) combination of CH1 + CH2\u003c\/span\u003e\n\n\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"product-row\"\u003e\n\u003cdiv class=\"product-box product-left\"\u003e\n\u003cfigure class=\"product-figure\"\u003e\n\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1697217224\/UDP3000S-Display.png\" alt=\"UDP3305S-E real-time voltage and current waveform display\" class=\"product-image-thumb\"\u003e\n\n\u003cfigcaption class=\"product-figcaption\"\u003eReal-time V\/I\/P waveform display across all configured channels\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-box product-right\"\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1697217224\/UDP3000S-Display.png\" alt=\"UDP3305S-E real-time voltage and current waveform display\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eReal-time V\/I\/P waveform display across all configured channels\u003c\/span\u003e\n\n\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"product-row\"\u003e\n\u003cdiv class=\"product-box product-left\"\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\u003c\/div\u003e\n\u003cdiv class=\"product-box product-right\"\u003e\n\u003cfigure class=\"product-figure\"\u003e\n\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1695845011\/UDP3000S-Functions.png\" alt=\"UDP3305S-E list and delayer programmable output editor\" class=\"product-image-thumb\"\u003e\n\n\u003cfigcaption class=\"product-figcaption\"\u003eList output editor — sine\/ramp\/pulse templates, programmable dwell intervals\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1695845011\/UDP3000S-Functions.png\" alt=\"UDP3305S-E list and delayer programmable output editor\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eList output editor — sine\/ramp\/pulse templates, programmable dwell intervals\u003c\/span\u003e\n\n\n\u003cdiv class=\"product-container\"\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\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"product-row\"\u003e\n\u003cdiv class=\"product-box product-left\"\u003e\n\u003cfigure class=\"product-figure\"\u003e\n\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1695844993\/UDP3000S-Interface.png\" alt=\"UDP3305S-E rear-panel data interfaces — USB-Host, LAN, RS-232, Digital I\/O\" class=\"product-image-thumb\"\u003e\n\n\u003cfigcaption class=\"product-figcaption\"\u003eRear-panel data interfaces: USB-Host, LAN, RS-232, Digital I\/O\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-box product-right\"\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1695844993\/UDP3000S-Interface.png\" alt=\"UDP3305S-E rear-panel data interfaces — USB-Host, LAN, RS-232, Digital I\/O\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eRear-panel data interfaces: USB-Host, LAN, RS-232, Digital I\/O\u003c\/span\u003e\n\n\n\u003cdiv class=\"product-container\"\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\u003c\/div\u003e\n\n\u003cdiv class=\"product-container\"\u003e\n\u003cdiv class=\"product-row\"\u003e\n\u003cdiv class=\"product-box product-left\"\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\u003c\/div\u003e\n\u003cdiv class=\"product-box product-right\"\u003e\n\u003cfigure class=\"product-figure\"\u003e\n\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1722808119\/UDP3305S-E_4_sq.jpg\" alt=\"UDP3305S-E rear panel showing data interfaces and AC input\" class=\"product-image-thumb\"\u003e\n\n\u003cfigcaption class=\"product-figcaption\"\u003eUDP3305S-E rear panel — data interfaces, AC input, fan exhaust, protected ground\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cspan class=\"lightbox-close\"\u003e×\u003c\/span\u003e\n\u003cimg src=\"https:\/\/res.cloudinary.com\/uni-t\/image\/upload\/v1722808119\/UDP3305S-E_4_sq.jpg\" alt=\"UDP3305S-E rear panel showing data interfaces and AC input\"\u003e\n\u003cspan class=\"lightbox-caption\"\u003eUDP3305S-E rear panel — data interfaces, AC input, fan exhaust, protected ground\u003c\/span\u003e\n\n\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\u003e\n\u003ch3\u003eEducation \/ Teaching Lab\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\u003c\/div\u003e\n\u003cdiv class=\"product-container\"\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\u003c\/div\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\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eAccessories \u0026amp; In the Box\u003c\/h2\u003e\n\u003ch3\u003eIncluded\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\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\n\u003cdiv class=\"product-container\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"product-faq-item\"\u003e\n\u003cp class=\"product-faq-question\"\u003e\u003cstrong\u003eWhat's the difference between the UDP3305S-E and the UDP3305S?\u003c\/strong\u003e\u003c\/p\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\u003cp class=\"product-faq-question\"\u003e\u003cstrong\u003eIs this enough resolution for an undergraduate electronics curriculum?\u003c\/strong\u003e\u003c\/p\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\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\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\u003c\/table\u003e\n\n\u003ch4\u003eDocumentation\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/instruments.uni-trend.com\/download?cate=33\"\u003eUDP3305S-E Datasheet, User Manual, and Software\/Firmware Downloads\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eOptions \u0026amp; Accessories\u003c\/h4\u003e\n\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  \u003cli\u003ecalibration report (COC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Uni-Trend US","offers":[{"title":"Default Title","offer_id":46595286204577,"sku":"181400100063X","price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/5649\/2449\/files\/UDP3305S-E_Cables.jpg?v=1782259443","url":"https:\/\/aaashopus.com\/products\/udp3305s-e-4ch-328w-30v-5a-programmable-linear-dc-power-supply-edu","provider":"SHOPSHOPSHOP","version":"1.0","type":"link"}