.ut-cat{color:#333;font-family:Arial,Helvetica,sans-serif;line-height:1.5;} .ut-cat h4{color:#1a1a1a;font-size:1.15em;margin:1.5em 0 .5em;padding-bottom:.25em;border-bottom:2px solid #ccc;} .ut-cat h2{color:#1a1a1a;font-size:1.25em;margin:1.2em 0 .4em;} .ut-cat h3{color:#222;font-size:1.05em;margin:1em 0 .3em;} .ut-cat p{margin:.6em 0;} .ut-cat ul{margin:.5em 0;padding-left:1.4em;}.ut-cat li{margin:.25em 0;} .ut-cat img{max-width:100%;height:auto;} .ut-cat table{border-collapse:collapse;width:100%;margin:.5em 0;} .ut-cat th,.ut-cat td{border:1px solid #ddd;padding:6px 10px;text-align:left;vertical-align:top;} .ut-cat td strong{color:#222;} Overview The 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. The 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. With 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). Across the Design. Debug. Deploy.™ Lifecycle Across the design-debug-deploy lifecycle, the UDP4303S earns its bench position: Design. 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. Debug. 8 kSa/s output sampling and 1 µA current resolution expose transients and sleep-mode draws that lower-bandwidth supplies average away. Deploy. List-mode profiles and SCPI/LXI automation drive production characterization runs from the same instrument. Affordability meets precision — design, debug, deploy. Key Features 4-Channel Fully Isolated Linear Output (297W) — CH1 & CH2: 0–32V/3A, CH3: 0–15V/3A, CH4: 0–6V/10A. Complete electrical isolation between all channels eliminates crosstalk. Ultra-Low Ripple & Noise —
