Agilent / Keysight E3611A 30W Power Supply, 20V, 1.5A or 35V, 0.85A

The Agilent/Keysight E3611A is a 30 W single-output DC power supply with dual-range capability, designed for benchtop laboratory and developmental circuit applications. It delivers precise voltage and current control through digital metering and 10-turn potentiometers, supporting output ranges of 0–20 V at 0–1.5 A or 0–35 V at 0–0.85 A. The unit maintains exceptional regulation and low noise performance, making it suitable for powering linear and digital IC circuits requiring stable, precision power delivery.

Technical Specifications

• Maximum Power: 30 W


• Range 1: 0–20 V, 0–1.5 A


• Range 2: 0–35 V, 0–0.85 A


• Maximum current derates 1% per °C between 40°C and 55°C Regulation Performance


• Load Regulation (CV): <0.01% + 2 mV


• Load Regulation (CC): <0.01% + 1 mA


• Line Regulation (CV): <0.01% + 2 mV


• Line Regulation (CC): <0.01% + 1 mA Output Stability


• Ripple & Noise (20 Hz–20 MHz): 200 µV RMS, 2 mV peak-to-peak


• Output Drift (CV): <0.1% + 5 mV over 8 hours post warm-up


• Output Drift (CC): <0.1% + 10 mA over 8 hours post warm-up


• Temperature Coefficient (CV): <0.02% + 1 mV/°C


• Temperature Coefficient (CC): <0.02% + 2 mA/°C


• Transient Response: <50 µs recovery to within 10 mV

Key Features

• Digital voltmeter/ammeter with 3-digit displays (100 mV voltage resolution, 10 mA current resolution)


• Front-panel RANGE button for output range selection


• CC SET button for current limiting without output shorting


• Continuously acting constant current protection for all overloads including direct short


• Constant voltage limiting in constant current operation


• Isolated front-panel output terminals

Typical Applications Developmental IC circuit powering, linear and digital circuit testing, precision laboratory measurements, and general benchtop power distribution.

Compatibility & Integration Three isolated front-panel output terminals accommodate standard lab connectors and test leads. 10-turn potentiometer controls enable fine adjustment across both voltage ranges.