Siglent SPD1305X DC Power Supply, Single Output, 30V, 5A, 150W, USB, LAN, SPD1000X Series

Siglent SPD1305X Programmable DC Power Supply

The Siglent SPD1305X is a programmable linear DC power supply designed for engineers, technicians, educators, and production teams that need stable, precise benchtop power. As part of the Siglent SPD1000X Series, the SPD1305X provides a single high-precision programmable output with 0 to 30 V voltage range, 0 to 5 A current range, and up to 150 W of output power. Its 2.8-inch true color TFT-LCD display, real-time waveform display, remote computer control, USB Device and LAN interfaces, and front-panel timing output functions make it a practical choice for development, testing, troubleshooting, and production environments.

For applications where accuracy at the load matters, the SPD1305X includes a 4-wire sense compensation output mode that helps correct voltage drops caused by long cables or high-resistance connections, with up to 1 V maximum compensation. Low ripple and noise, fast transient response, 1 mV/1 mA resolution, save/recall memory, and short-circuit and overload protection help make the Siglent SPD1305X power supply a reliable solution for precise DC power sourcing.

Specifications and Benefits

• Output range: 0 to 30 V and 0 to 5 A- Supports a wide range of DC-powered circuits, components, and devices from one programmable output.

• Maximum output power: 150 W- Provides enough power capacity for many bench, lab, development, and production power requirements.

• Minimum resolution: 1 mV/1 mA- Enables fine voltage and current adjustments for sensitive testing and precision setup work.

• Program accuracy- voltage ±(0.03% of reading + 10 mV), current ±(0.3% of reading + 10 mA): Helps users set output levels with confidence during repeatable test procedures.

• Readback accuracy- voltage ±0.03% of reading + 10 mV), current ±(0.3% of reading + 10 mA): Provides dependable feedback when monitoring actual supply output.

• Low ripple and noise- ≤350 µVrms/3 mVpp in constant voltage mode and ≤2 mArms in constant current mode- Helps deliver clean DC power for low-noise and precision electronics testing.

• Fast recovery time- <50 µs for a 50% load change with minimum 0.5 A load: Helps maintain stable output during changing load conditions.

• 4-wire sense compensation output mode- Improves voltage accuracy at the load by compensating for voltage drops in long leads or high-resistance connections, up to 1 V maximum compensation.

• 2.8-inch true color TFT-LCD display with 5-digit voltage and 4-digit current display- Makes output settings and readings easy to view from the front panel.

• Front-panel timing output functions and real-time waveform display- Helps users observe and manage time-based power output behavior directly from the instrument.

• USB Device and LAN interfaces with Easypower software, SCPI support, and LabVIEW driver support- Enables remote control and integration into automated test environments.

• Five internal save/recall memory groups- Allows common setups to be stored and recalled quickly for recurring tasks.

• AC 100/120/220/230 V ±10%, 50/60 Hz compatible input- Supports use with different power grids.

• Intelligent temperature-controlled fan- Helps reduce noise while supporting reliable operation.

• Features a locking key- Prevents accidental adjustments to voltage or current, and stops unauthorized users from tampering with the equipment.

• Three-year warranty, excluding accessories- Adds confidence for long-term ownership and use.

Application Uses

The Siglent SPD1305X programmable DC power supply is suited for production and development applications. Its clean output, programmable control, timing functions, and 4-wire sense capability make it useful for powering circuits, validating designs, checking load response, and supporting automated test workflows.

• Electronics research and development

• Production test and verification

• Benchtop circuit power and troubleshooting

• Automated test systems using USB Device or LAN control

• Precision voltage sourcing where long leads or connection resistance may affect accuracy

• Education and training labs that require programmable DC power with clear front-panel monitoring

What's in the Box

• SPD1305X DC Power Supply

• USB Cable -1

• Quick Start guide -1

• Power cord -1

• Output Test Cord (not shown) -2 Sets

• Certificate of Calibration (not shown) -1

Siglent SPD1305X FAQ

• What is the output capability of the Siglent SPD1305X?
  The Siglent SPD1305X provides one programmable DC output with a voltage range of 0 to 30 V and a current range of 0 to 5 A, delivering up to 150 W of maximum output power. This makes it suitable for users who need a single-output programmable bench power supply with fine 1 mV/1 mA adjustment resolution.

• Does the SPD1305X support remote control or automated testing?
  Yes. The SPD1305X includes USB Device and LAN interfaces and is supplied with Easypower PC software. The datasheet also states support for SCPI and a LabVIEW driver, making the unit useful for remote computer control and automated test setups.

• How does the 4-wire sense function help during testing?
  The SPD1305X includes a 4-wire sense compensation output mode that uses a separate measurement circuit to compensate for voltage drops caused by long cables or high-resistance connections. With up to 1 V maximum compensation, this feature helps the power supply deliver more accurate voltage at the load.