Keysight / Agilent / HP 66103A DC Power Module

The Keysight 66103A is a 150 W modular DC power supply designed for automated test equipment and production test environments. This GPIB-programmable module delivers 0–35 V and 0–4.5 A with exceptional stability and low noise, making it ideal for precision component testing and system validation. The 66103A integrates into the Keysight 66000 modular power system, allowing configurations of up to eight modules within a single 4U rack-mountable chassis. Fast transient response, programmable protection, and advanced LIST mode triggering enable complex test sequences without external switching hardware.

– Technical Specifications

Output Ratings
• Voltage: 0–35 V
• Current: 0–4.5 A
• Power: 150 W

Programming Accuracy (25°C ±5°C)
• Voltage: ±0.03% + 13 mV
• Current: ±0.03% + 2 mA

Ripple and Noise (20 Hz–20 MHz)
• Voltage RMS: 5 mV
• Voltage peak-to-peak: 10 mV
• Current RMS: 2 mA

Load and Line Regulation
• Voltage load regulation: 0.01% + 3 mV typical across full load
• Voltage line regulation: 0.01% + 2 mV typical
• Current load regulation: 0.02% + 1 mA typical
• Current line regulation: 0.01% + 0.5 mA typical

Transient Response
Output voltage settles to within 1% of final value within 20 ms following a 50–100% load current step.

– Key Features

• Programmable over-voltage and over-current protection
• Over-temperature protection
• Electronic calibration via GPIB or front panel
• Five nonvolatile store-recall states per output
• User-definable power-on configuration
• Discrete fault indicator and remote inhibit inputs
• Self-test initiated at power-up or via GPIB command
• LIST mode and advanced triggering for sequential test execution

– Physical & Interface

• Dimensions: 23 × 2 × 6 in (approximate)
• Weight: 6 lbs (approximate)
• GPIB interface for remote programming and control

– Compatibility & Integration

The 66103A is designed for the Keysight 66000A MPS mainframe, which supports up to eight modules. Optional isolation/polarity relays (Option 760) are available. Alternative output configurations include J01 (37 V, 4 A, 148 W), J02 (40 V, 3.6 A, 144 W), J09 (28.5 V, 5.5 A, 140 W), J12 (24 V, 6 A, 144 W), and J10 (dual fault indicators).