Agilent/Keysight 6553A DC Power Supply

The Agilent/Keysight 6553A is a 500 W single-output DC power supply engineered for electronic testing and development. Its linear topology delivers extremely low noise and ripple essential for precision measurement work. The unit operates from 0 to 35 V and 0 to 15 A, with full front-panel and analog programming control for voltage and current.

Fast up- and down-programming capability accelerates test cycles while integrated protection - including fast crowbar, CV/CC mode crossover, and over-voltage protection - safeguards load devices.

Technical Specifications

• Output: 0–35 V, 0–15 A (500 W at rated conditions; 525 W maximum)


• Programming accuracy (25°C ±5°C): voltage 0.06% + 15 mV; current 0.15% + 13 mA


• Ripple and noise (20 Hz to 20 MHz): 400 µV rms / 4 mV peak-to-peak (voltage); 5 mA rms (current)


• Load regulation: 3 mV (voltage), 0.5 mA (current)


• Line regulation: 1 mV (voltage), 0.75 mA (current)


• Temperature-dependent current limits: 15 A @ 40°C; 13.5 A @ 50°C; 12.8 A @ 55°C


• AC input: 100, 220, or 240 VAC (47–63 Hz); 200–400 VAC option available

Key Features

• Front-panel and analog programming interfaces for manual and automated control


• Fast crowbar and over-voltage protection for device safety


• CV/CC mode crossover for seamless constant-voltage and constant-current transitions


• Low output noise ideal for sensitive analog and RF circuit testing

Typical Applications

• Electronic circuit development and validation


• Precision measurement and characterization work


• Device stress testing and thermal analysis


• Lab-bench power delivery for medium-current loads

Compatibility & Integration Optional rack-mount kits (Models 908, 909) enable integration into standard 19-inch equipment racks. Operating manuals are supplied; service documentation available separately. Though manufacturer-listed as obsolete, the 6553A remains suitable for applications requiring its specific voltage, current, and noise performance.