Agilent/Keysight 6181B DC Power Supply

The Agilent/Keysight 6181B is a precision DC current source engineered for applications requiring stable, accurate current delivery with minimal ripple. This manually operated instrument provides 0 to 250 mA full-scale current output with voltage compliance to 100 V, making it suitable for demanding measurement and characterization tasks across semiconductor, electrochemical, and resistivity testing environments.

Technical Specifications

• Output current: 0 to 250 mA full-scale


• Voltage compliance: Up to 100 V


• Output impedance: High


• Current control: 10-turn graduated decadial (Option 014 / 015)


• AC input: 230 VAC operation available (Option 028)


• Output capacitor: None


• Regulation and stability: Exceptional with very low ripple characteristics

Key Features

• Manual current source operation with precision control


• High output impedance for stable current delivery into varying load conditions


• Decadial control knob enables fine adjustment of output current


• No output capacitor eliminates charge storage effects


• Safety Class I design with protective earth terminal


• Internal fuse protection (non-customer accessible)

Typical Applications

• Resistivity measurements


• Semiconductor characterization


• Electrochemistry


• Electromagnetics


• Component testing and sensor calibration


• Research requiring precision DC current injection

Compatibility & Integration The 6181B operates as a standalone precision current source with manual control. It requires connection to AC mains via a grounded power cable. Operation in hazardous atmospheres containing flammable gases or fumes is prohibited. Service access and internal inspection are restricted to qualified, service-trained personnel.