Siglent SPD3303X Programmable DC Power Supply

The Siglent SPD3303X is a precision linear DC power supply engineered for users who demand higher resolution and accuracy in their test environments. With its 1 mV voltage and 1 mA current resolution, it offers finer control than the SPD3303X-E, making it the better choice for sensitive measurements and applications where small changes in supply conditions must be monitored closely. Compact and intuitive, it is well suited for laboratories, R&D, production lines, and educational institutions.

Performance and Flexibility

This model features three independent outputs, including two adjustable channels (0–32 V / 0–3.2 A) and one fixed channel with selectable voltages of 2.5 V, 3.3 V, or 5 V at 3.2 A. Combined, they provide a maximum total power of 220 W. Outputs can be operated independently, combined in series mode for higher voltage (up to 60 V), or in parallel mode for higher current (up to 6.4 A), ensuring flexibility across a wide variety of test setups.

The 4.3-inch TFT-LCD display provides a crisp interface for monitoring voltage and current values, with 5-digit voltage and 4-digit current readouts for exceptional clarity. Real-time waveform monitoring, together with constant voltage (CV) and constant current (CC) operating modes, guarantees precise and stable power delivery.

Applications of the SPD3303X

The SPD3303X’s combination of high resolution, multiple outputs, and versatile modes make it ideal for:

• Electronics Development & R&D: Power prototypes and sensitive circuits with fine granularity and stability, essential for accurate testing.

• Education & Training: Safe, intuitive, and precise operation for students learning about electronics and measurement.

• Manufacturing & Production Testing: Multiple outputs and programmable control support repeatable, reliable quality assurance processes.

• Embedded Systems & Microcontrollers: The fixed 2.5 V, 3.3 V, and 5 V output is ideal for powering digital logic and MCU-based designs.

• Communications & IoT Hardware: Series and parallel modes allow higher voltage or current ranges to test routers, modules, and IoT devices.

• Battery Simulation & Charging: Operates in CC or CV mode to emulate real-world charging and discharging conditions with high resolution.

Why Choose the SPD3303X?

The SPD3303X stands out for its superior resolution (1 mV / 1 mA), which provides greater confidence in sensitive applications where small changes matter. Coupled with robust safety features, intuitive operation, and versatile output modes, it delivers the precision and flexibility demanded by professional engineers, educators, and advanced electronics hobbyists.