The Agilent/Keysight 6251A is a DC power supply engineered for electronic testing and development. It delivers programmable voltage and current outputs with tight regulation, low noise, and protection features designed to safeguard devices under test. The unit supports both front-panel and remote control, making it suitable for standalone benchtop use or integration into automated test systems.
Technical Specifications
Output Ratings:
• Voltage: 0 to 8 V, 0 to 20 V, 0 to 30 V, or 0 to 70 V (model-dependent)
• Current: Up to 50 A, 25 A, 5 A, or 3 A (correlates with voltage rating)
• Power: 128 W to 500 W and higher (configuration-dependent)
Load and Line Regulation:
• Constant Voltage (CV): Better than 0.01% + 2 mV
• Constant Current (CC): Better than 0.02% + 2 mA
Ripple and Noise:
• Voltage (RMS): Less than 1 mVrms (20 Hz to 20 MHz)
• Voltage (Peak-to-Peak): As low as 3 mV
• Current (RMS): Typically 25 mA
Programming Accuracy (at 25°C ±5°C):
• Voltage: Approximately 0.06% + 5 mV
• Current: Approximately 0.15% + 60 mA
Load Transient Response: Less than 50 µs or 100 µs to specified tolerance
– Key Features
• Over Voltage Protection (OVP) with programmable trip levels
• Over Current Protection (OCP) with programmable trip levels
• Front-panel rotary knobs and keypads for voltage and current adjustment
• LCD display with backlight
• Save-and-recall memory for up to three operating states
• Keypad lock and physical lock mechanisms
• Remote sensing for output lead voltage drop compensation
– Compatibility & Integration
• GPIB (IEEE 488.2) interface for remote control and system automation
• Analog control option for voltage and current
• VXIplug&play driver support












