Agilent/Keysight 6253A DC Power Supply

The Keysight 6253A is a dual-output DC power supply engineered for electronic testing and development. Each output section delivers 0–20 V at 0–3 A with independent control, yielding up to 120 W combined power. The unit supports auto-series, auto-parallel, and auto-tracking operation to extend voltage or current capability.

Rear-panel programmability via external voltage source or resistance input enables remote control. Low output impedance (4 mΩ series, 1 µH inductance) and tight regulation ensure stable, noise-free operation across industrial environments.

Technical Specifications

• Output Configuration: Dual, independently controlled channels


• Voltage Range: 0–20 V per output


• Current Range: 0–3 A per output


• Total Power Output: 120 W maximum (combined)


• Operating Temperature: 0 to 55 °C


• Ripple & Noise (20 Hz–20 MHz):

Constant Voltage: 200 µV rms, 1 mV peak-to-peak

Constant Current: 2 mA rms

• Load Regulation:

Voltage: 0.01% + 4 mV

Current: 0.01% + 250 µA

Line Regulation:

Voltage: 0.02% + 2 mV

Current: 0.01% + 250 µA

Output Impedance: 4 mΩ series resistance, 1 µH inductance

Weight: 12.7 kg (28 lb)

Maximum Altitude: 2000 m

Maximum Humidity: 95% relative

Key Features

• Auto-series operation for doubled voltage output


• Auto-parallel capability for increased current delivery


• Auto-tracking between dual outputs


• Front and rear panel output connections


• Rear-panel programmable control interface


• Internal overvoltage protection option (Option 011)


• 10-turn potentiometer options for precise voltage and current adjustment


• Multiple color and input voltage configurations available

Typical Applications

• Component and circuit bench testing


• Development and prototype power requirements


• Educational laboratory use


• Systems requiring dual independent or tracking power rails

Compatibility & Integration Manufacturer status is obsolete. The unit accepts 230 VAC input with Option 028. Optional 3-digit graduated controls and precision potentiometers enhance manual adjustment accuracy.