SPD3303C Series Programmable DC Power Supply
Main Features
- 3 independent high precision outputs: two 32 V /3.2 A, one 2.5 V / 3.3 V / & 5 V / 3.2 A, total 220 W power
- 4 digit voltage and 3 digit current display, min resolution: 10 mV, 10 mA
- Three output modes: independent, series and parallel
- 100/120/220/230 V compatible design, to meet the needs of various power grids




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Excellent Output Performance
The SPD3303C is robust and stable, and can accurately simulate even small voltage or current changes, fully meeting the power requirements of the load.
- Ultra-high resolution: 1 mV, 1 mA
- Excellent setting and readback accuracy to ensure accurate and pure output
- Support panel programming and timing output
- 3 independently controlled and isolated outputs

Series/parallel/independent Mode
The series-parallel function combines two power supplies into one power supply, which expands the output power range of a single power supply, which brings convenience in some applications. The three independent power supplies can individually control the output switch, and they can be turned on or off at the same time.

Specifications
Channel | CH1:0 ~ 32 V,0 ~ 3.2 A CH2:0 ~ 32 V,0 ~ 3.2 A CH3:2.5/3.3/5.0 V,3.2 A |
Display | 32 V full scale 4 digits 3.2 A full scale 3 digits LED display |
Resolution | 10 mV/10 mA |
Line Regulation | ≤ 0.01%+3 mV |
Load Regulation | ≤ 0.01%+3 mV |
Ripple&Noise | ≤ 1 mVrms(5 Hz ~ 1 MHz) |
Recovery Time | < 50μs(50% load change, minimum load 0.5A) |
Line Regulation | ≤ 0.2%+3 mA |
Load Regulation | ≤ 0.2%+3 mA |
Ripple&Noise | ≤ 3 mArms |
Line Regulation | ≤ 0.01%+3 mV |
Load Regulation | ≤ 0.01%+3 mV |
Line Regulation | ≤ 0.01%+5 mV |
Load Regulation | ≤ 300 mV |
Model
Channel output
Display
Resolution
Setting accuracy
Readback accuracy
SPD3303C
CH1/CH2: output voltage 0~32 V output current 0~3.2 A CH3: output voltage 2.5/3.3/5.0V output current 0~3A
LED display 4 bits voltage display,3 bits current diaplay
10 mV, 10 mA
voltage ±(0.5% of reading + 3 digits) current ±(0.5% of reading + 3 digits)
voltage±(0.5% of reading + 3 digits) current±(0.5% of reading + 3 digits)