UDP4303S
NewUDP4303S programmable linear DC power supply features two 32V/3A outputs, one 15V/3A output, and one 6V/10A output. It offers extremely low load regulation and low ripple noise output, with each channel isolated from the others. All four channels support remote sensing (4-wire) function. Channels 1 and 2 support internal series and parallel connections, making the device suitable for a wide range of applications.
The product is equipped with an RS232 communication interface, supporting SCPI protocol, Ethernet, and multiple Digital I/O interfaces, which facilitate remote control. The 4.3”
TFT LCD screen provides a rich functional interface, making it easy to use list/delay functions, trigger functions, monitoring functions, recorder functions, waveform display functions, output preset functions, system settings, language selection, and a web server.
Linear
Type
4
Channels
297W
Total Power
0 - 32V
Output Voltage
0 - 3A
Output Current
1mV, 1μA
Resolution
<0.03%+8mV <0.15%+5mA
Setting Accuracy
RS-232, USB Host, USB Device, LAN, Digital IO, Sense
Connectivity
KEY FEATURES
FEATURES
Higher resolution
Current resolution up to 1µA, small current mode supported on all four channels
Waveform analysis
8kSa/s current sampling rate
Four-channel current high-speed sampling. Accurately captures and displays transient changes.
1ms programming time resolution
Programming time resolution up to 1ms, more refined output for diverse arbitrary waveforms
100 times the resolution of previous generation power supplies
Multiple display styles
4.3 inch LCD clear display, 6 interface display styles to help you better view the measurement results
Various useful functions
List, Delayer, Monitor, Trigger, Recorder
Help you automate tests, monitor and protect intelligently, and record the data you care about.
Series and parallel
Independent, series and Parallel operation can be easily realized through the menu. Strong performance even when connected in series and parallel
Full Channel Isolation
Four-channel full isolation
Isolation without crosstalk, comfort and safety
Full Channel remote compensation
All four channels support remote compensation, reverse connection and overvoltage protection.
Guarantee the accuracy and safety of the test
CH1 & CH2 channel tracking
Turn on the tracking function. Arbitrarily change the settings of one channel and the settings of the other channel will be changed accordingly
MODEL
| Model | Bandwidth | Analog Channels | Real-time Sample Rate | Max. Memory Depth | Waveform Capture Rate | Digital Channels |
|---|---|---|---|---|---|---|
 UDP4303S |
Linear | 4 | 297W | CH1/CH2:0 - 32 V CH3:0 - 15 V CH4:0 - 6 V | CH1/CH2:0 - 3A CH3:0 - 3A CH4:0 - 10A | 1mV,1μA |
Technical Specification
| Model | UDP4303S |
| Key Specifications | |
| Type | Linear |
| Channels | 4 |
| Output Voltage | CH1/2: 0–32 V; CH3: 0–15 V; CH4: 0–6 V |
| Output Current | CH1/2/3: 0–3 A; CH4: 0–10 A |
| Output Power | 297 W |
| Voltage Resolution | 1 mV |
| Current Resolution | 0.1 mA (1 μA small-current mode) |
| Technical Details | |
|---|---|
| Ripple And Noise Voltage | <350 μVrms / 2 mVpp (20 Hz–20 MHz) |
| Ripple And Noise Current | ≤2 mArms |
| Readback Accuracy Voltage | CH1–3: ±(0.03%+8 mV); CH4: ±(0.08%+3 mV) |
| Readback Accuracy Current | CH1–3: ±(0.15%+5 mA); CH4: ±(0.15%+10 mA) |
| Load Regulation CV | ≤0.01%+2 mV |
| Load Regulation CC | ≤0.01%+250 μA |
| Line Regulation CV | ≤0.01%+2 mV |
| Line Regulation CC | ≤0.01%+250 μA |
| Programming Accuracy Voltage | CH1–3: ±(0.03%+8 mV); CH4: ±(0.04%+4 mV) |
| Programming Accuracy Current | CH1–3: ±(0.15%+5 mA); CH4: ±(0.15%+10 mA) |
| Command Processing Time | <10 ms |
| Current Sample Rate | 8 kSa/s |
| Transient Response Time | <50 μs |
| Features | |
| Channel Isolation | Yes |
| Remote Sense | 4-wire, all channels |
| Series Parallel Operation | CH1/CH2 internal series/parallel |
| Waveform Display | Yes |
| Small Current Mode | 1 μA resolution |
| Protection | OVP/OCP/OTP/Sense |
| CC/CV Priority Mode | Yes |
| Adjustable Slew Rate | Yes |
| List Function | Yes |
| Delayer Function | Yes |
| Trigger Function | Yes |
| Monitor Function | Yes |
| Recorder Function | Yes |
| Web Control | Yes |
| General Information | |
| Display | 4.3-inch LCD |
| Interface | USB Host, USB Device, LAN, RS-232, Digital I/O |
| Power | AC 100/120/220/230 V ±10%, 50/60 Hz |
| Product Net Weight | 10.5 kg |
| Product Dimensions (W×H×D) | 225 × 159.6 × 445 mm |
| Standard Quantity Per Carton | 1 pc |
| Certification | CE, cTUVus |
| Warranty | 3 Years |
DATA SHEET
QUICKSTART GUIDE
MANUAL
SOFTWARE
Instrument Application
Current Version: V2.00_1031 | 2025/11/12
Release Notes
FIRMWARE
UDP4303S Firmware
Current Version: V1.15 | 2025/7/9
Release Notes
Videos
Delayer control channel output testing
Display type
List output sine wave
Low current mode
One-touch parallel connection
One-touch series connection
Ripple Measurement
Waveform analysis
ACCESSORIES
