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Manufacturer status is obsolete.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.
















