Agilent / Keysight E3641A DC Power Supply

The Keysight E3641A is a 30 W single-output DC power supply engineered for benchtop R&D, production testing, and quality assurance. Its dual-range architecture delivers 0–35 Vdc @ 0–0.8 A or 0–60 Vdc @ 0–0.5 A, enabling flexible power delivery across diverse load conditions. With line and load regulation better than 0.01% + 3 mV (voltage) and transient response under 50 µsec, this supply maintains exceptionally clean, stable output.

Voltage ripple and noise measure < 8 mVpp / 0.5 mVrms; current noise stays below 4 mArms.

Technical Specifications

• Dual-range outputs: 0–35 Vdc @ 0–0.8 A or 0–60 Vdc @ 0–0.5 A


• Line regulation: < 0.01% + 3 mV (voltage); < 0.01% + 250 µA (current)


• Load regulation: < 0.01% + 3 mV (voltage); < 0.01% + 250 µA (current)


• Voltage programming accuracy: ±0.05% + 10 mV


• Ripple and noise: < 8 mVpp / 0.5 mVrms (voltage); < 4 mArms (current)


• Transient response: < 50 µsec (15 mV recovery window, full to half load)


• Voltage settling time: < 90 msec


• Temperature coefficient: < 0.01% + 3 mV per °C


• 8-hour stability: < 0.02% + 2 mV Measurement & Display


• Vacuum fluorescent digital display with 10 mV / 1 mA meter resolution


• Front-panel voltage accuracy: < 0.05% + 2 counts


• Front-panel current accuracy: < 0.15% + 5 mA


• Programming resolution: < 5 mV / 1 mA; readback: < 2 mV / 1 mA

Key Features

• Overvoltage protection (OVP) with activation time < 1.5 msec (≥ 3 V) or < 10 msec (< 3 V)


• GPIB (IEEE-488) and RS-232 interfaces with SCPI command support


• Fan-cooled design with automatic speed control for low noise


• Binding posts accept safety leads, banana plugs, or stripped wire


• Rear-panel output and sensing terminals


• Compact form factor: 88.5 mm H × 212.8 mm W × 348.3 mm D; 11.48 lb

Typical Applications

• Component and subsystem characterization


• Automated production test benches


• Laboratory prototyping and circuit verification

Compatibility & Integration Supports VXI plug-and-play drivers for Keysight VEE, LabVIEW, and LabWindows under Windows 98 and NT environments. Tough handle permits easy transport and prop-up positioning.