The Siglent SPD3303C is a versatile 3-channel programmable linear DC power supply designed for laboratories, R&D, education, and production environments. With a total output power of 220 W, it delivers two fully adjustable channels (up to 32 V / 3.2 A each) and one fixed channel (selectable 2.5 V, 3.3 V, or 5 V at 3.2 A). It supports independent, series, and parallel modes, making it suitable for a wide range of test setups. The SPD3303C also offers short-circuit and overload protection for safe and reliable operation.

Key Features

Output Configuration:

CH1 & CH2: 0-32 V / 0-3.2 A (adjustable)

CH3: 2.5 V / 3.3 V / 5 V, fixed, 3.2 A

Total power output: 220 W

Display & Resolution:

LED display with 4-digit voltage / 3-digit current readout

Voltage resolution: 10 mV, current resolution: 10 mA

32 V full-scale display for accurate monitoring

Operation Modes:

Independent: Operate each channel separately

Series: Combine channels for higher voltage output

Parallel: Combine channels for higher current output

Protection & Reliability:

Short-circuit and overload protection

Smart temperature-controlled fan for reduced noise and longer lifespan

Rugged design for long-term use in professional environments

Control & Connectivity:

Save/recall up to 5 system setups

USB device interface for PC connectivity

Supports SCPI commands for automation and integration with test systems

General Specifications:

Dimensions: 275 × 225 × 136 mm

Weight: 7.5 kg

Universal input voltage: 100/120/220/230 V

The SPD3303C combines high precision, flexible operation, and robust safety features, making it a cost-effective solution for engineers, educators, and technicians who require reliable multi-channel DC power delivery.

What's in the box
1 x SPD3303C Siglent 3CH 220W Linear Programmable DC Power Supply