Agilent/Keysight 6111A 20W DC Power Supply

The Agilent/Keysight 6111A is a 20 W DC power supply delivering precise voltage and current control across 0–20 Vdc and 0–1 A output ranges. Built for benchtop research, quality assurance, and automated test equipment systems, it combines exceptional load and line regulation with low ripple performance and front-panel programmability. The instrument operates in Constant Voltage or Constant Current limit modes, supported by remote programming, remote sensing, and auto-series/auto-tracking capabilities.

Technical Specifications

• Voltage: 0–20 Vdc


• Current: 0–1 A


• Power: 20 W


• Voltage regulation (line): <0.001% for input variations within rating


• Voltage regulation (load): <0.001% + 200 μV (front terminals); <0.001% + 100 μV (rear terminals)


• Current regulation (load): 0.01% + 15 mA


• Ripple and noise: 8 mV RMS, 50 mV peak-to-peak (voltage); 120 mA RMS (current) Control and Monitoring


• Voltage adjustment: 5-digit thumb-wheel control


• Current limiting: Adjustable limiter with CC/CV mode switching


• Remote programming: 0–5 V or 0–4000 Ω analog inputs


• Remote sensing: Load-point regulation capability


• Front-panel meters: 3.5-digit display for voltage and current (X1, X0.1 ranges)


• Buffered outputs: 0–5 V monitor signals for voltage and current


• Overvoltage protection: Adjustable front-panel trip level Input and Environmental


• Input: 115 VAC ±10%, 1 phase, 48–63 Hz (alternative: 105–125 VAC or 210–250 VAC)


• Power consumption: 52 W


• Operating temperature: 0°C to 50°C


• Dimensions: 5.25" H × 8.5" W × 12.625" D


• Weight: 11 lbs (net)

Key Features

• Exceptional load and line regulation for stable precision test conditions


• Dual-terminal configuration (front/rear) with independent sensing


• Auto-series and auto-tracking modes for multi-unit configurations


• Thermal and AC line overvoltage protection


• Low ripple voltage (8 mV RMS) suitable for sensitive device testing

Typical Applications Component characterization, circuit validation, power supply testing, device burn-in, and precision laboratory measurement requiring stable, programmable DC output with integral protection.