Siglent SPD3303C: Entry-Level Programmable DC Power Supply

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Product Overview

The SPD3303C brings the same 220 W, three-output design as the SPD3303X/X-E — independent, series, and parallel modes included — to classrooms, production lines, and general lab benches at a lower cost. Siglent trades the SPD3303X’s higher-resolution color screen for a simpler LED readout, making this the model to reach for when budget matters more than display precision.

Key Features

  • 3 isolated outputs: 2× 0–32 V/3.2 A + fixed 2.5/3.3/5 V @ 3 A
  • 220 W total output power
  • Independent, series, and parallel output modes
  • LED display: 4-digit voltage, 3-digit current
  • Short-circuit and overload protection
  • USB cable and quick-start guide included
  • In-stock, ships within 1–3 days

Product Characteristics

SpecSPD3303C
Adjustable channels2 × 0–32 V / 0–3.2 A
Fixed channel2.5/3.3/5 V @ 3 A
Total power220 W
DisplayLED, 4-digit V / 3-digit A
Resolution10 mV / 10 mA
Accuracy±(0.5% of reading + 2 digits)

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Frequently Asked Questions

1 What are the output configurations and power capabilities of the SPD3303C for complex embedded system testing?

The SPD3303C features three isolated outputs: two adjustable 0–32 V/3.2 A channels and one fixed 2.5/3.3/5 V @ 3 A channel, providing a total of 220 W. It supports independent, series, and parallel output modes, offering flexibility for various testing scenarios.

2 Does the SPD3303C offer protection features to safeguard my prototypes during development?

Yes, the SPD3303C includes short-circuit and overload protection. This helps to prevent damage to both the power supply and the connected devices during testing, contributing to reduced risk in development.

3 What is the typical lead time for receiving the SPD3303C power supply?

The SPD3303C is currently in-stock and typically ships within 1–3 days. This ensures quick delivery, which can help in meeting tight development timelines.

4 How does the SPD3303C balance cost-effectiveness with display functionality compared to higher-end models?

The SPD3303C uses a simpler LED display with 4-digit voltage and 3-digit current readouts, making it a more budget-friendly option. This design choice prioritizes cost efficiency for applications where budget matters more than higher-resolution color screen precision, while still providing essential measurement data.

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