HP / Agilent 6521A DC POWER SUPPLY 0-1000V / 0.2A

The HP/Agilent 6521A is a Series HVR DC power supply delivering stable, adjustable output from 0–1000 V at 0–200 mA. Built for precision high-voltage applications, this convection-cooled unit operates silently without forced air cooling. Front-panel analog meters provide direct voltage and current readouts, while precision thumbwheel controls enable repeatable setpoints.

Technical Specifications

Output: 0–1000 V dc, 0–200 mA

Input: 105–125 V ac, 50–500 cps; 4 A maximum, 270 W consumption

Load regulation (constant voltage): <0.005% + 10 mV

Load regulation (constant current): <2% or mA

Line regulation (constant voltage): <0.001% + 10 mV (105–125 V ac range)

Line regulation (constant current): <1 mA

Ripple and noise (constant voltage): <1 mV rms

Ripple and noise (constant current): <2 mA rms

Transient recovery: <50 μsec to 0.005% or 20 mV (whichever greater)

Temperature coefficient (constant voltage): 0.12% + 1 mV/°C post warm-up

Temperature coefficient (constant current): 0.2% + 0.1 mA/°C post warm-up

8-hour stability (constant voltage): 0.036% + 3 mV drift

8-hour stability (constant current): 0.25% + 0.5 mA drift

Calibration accuracy: 1% of voltage control setting

Key Features

Three-decade thumbwheel voltage selector with 0.002% vernier resolution

Single-turn potentiometer current control

Integrated 0–1 kV and 0–200 mA analog meters

Convection cooling; no moving parts except meter movement

Operating temperature: 0–50°C

Storage temperature: −20 to +70°C

Typical Applications High-voltage DC applications demanding low ripple, fast transient response, and long-term output stability. Test benches requiring manual voltage/current adjustment with direct panel metering.