Agilent/Keysight 66104A DC Power Supply

The Agilent/Keysight 66104A is a 150 W DC power module engineered for integration into the 66000A Power System Mainframe. This modular unit delivers programmable output from 0 to 60 Vdc at 0 to 2.5 A, making it ideal for automated test equipment (ATE) and production test environments requiring stable, low-noise power delivery. Programming accuracy reaches 0.03% + 27 mV for voltage and 0.03% + 1.2 mA for current at 25°C ±5°C.

The module exhibits exceptionally low ripple and noise - 9 mV rms (15 mV peak-to-peak) for voltage and 1 mA rms for current across the 20 Hz to 20 MHz band. High-accuracy read-back of voltage and current is available via GPIB interface.

Technical Specifications

• Output Power: 150 W maximum


• Output Voltage: 0 to 60 Vdc


• Output Current: 0 to 2.5 A


• Voltage Programming Accuracy (at 25°C ±5°C): 0.03% + 27 mV


• Current Programming Accuracy (at 25°C ±5°C): 0.03% + 1.2 mA


• Voltage Ripple and Noise: 9 mV rms / 15 mV peak-to-peak (20 Hz to 20 MHz)


• Current Ripple and Noise: 1 mA rms (20 Hz to 20 MHz)


• Interface: GPIB (IEEE 488.2), SCPI-compliant


• Drivers: VXI Plug&Play LabVIEW and IVI drivers available


• Output Sequencing: Supported

Key Features

• Low-noise design ensures signal integrity for precision measurement applications


• Eight modules fit within 4U of rack space when installed in 66000A mainframe


• Easily swappable modules enable rapid system reconfiguration


• High-accuracy read-back via GPIB for closed-loop control


• Optional isolation/polarity relays (Option 760) or fault indicators (Option J10) available

Typical Applications

• Component and circuit board testing in manufacturing


• Device characterization in R&D laboratories


• Production test automation


• Multi-channel power distribution in instrument racks

Compatibility & Integration Designed exclusively for the 66000A Power System Mainframe. Configuration options include variant outputs (Option J09: 55 V, 3 A, 165 W) and output connector deletion (Option J15).