Keysight / Agilent / HP N3302A Electronic Load Module

The Keysight N3302A is a 150 W electronic load module designed for integration into N3300A or N3301A mainframes, enabling automated testing of DC power supplies in high-volume production environments. The module operates across 0–60 V and 0–30 A with stable operation down to zero volts, delivering precise programmable load control and real-time measurement capabilities. It supports constant current, constant voltage, and constant resistance modes, along with voltage, current, and power measurements. The built-in waveform digitizer and pulse generator enable dynamic load simulation and transient response testing.

– Technical Specifications

Input Ratings
• Voltage: 0–60 V
• Current: 0–30 A
• Maximum Power: 150 W at 40 °C
• Minimum Operating Voltage (full scale current): 1.2 V typical

Constant Current Mode
• Low Range / High Range: 3 A / 30 A
• Low Range Regulation: 10 mA
• Low Range Accuracy: 0.1% + 5 mA
• High Range Accuracy: 0.1% + 10 mA
• Programming and Readback Resolution: 0.05 mA / 0.5 mA

Constant Voltage Mode
• Low Range / High Range: 6 V / 60 V
• Low Range Regulation: 5 mV
• Low Range Accuracy: 0.1% + 3 mV
• High Range Accuracy: 0.1% + 8 mV
• Programming and Readback Resolution: 0.1 mV / 1 mV

Constant Resistance Mode
• Range 1 (I > 10% rating): 0.067–4 Ω
• Range 2 (I > 1% rating): 3.6–40 Ω
• Range 3 (I > 0.1% rating): 36–400 Ω
• Range 4 (I > 0.01% rating): 360–2000 Ω
• Programming and Readback Resolution: 0.07 / 0.7 / 7 / 70 mΩ

– Key Features

• 16-bit programming and readback resolution
• Waveform digitization for transient capture
• Built-in pulse waveform generator
• Flexible triggering system
• Programmable measurement accuracy and speed trade-off
• Modular design supports multi-module configurations

– Typical Applications

• DC power supply validation and characterization
• Battery charger and converter testing
• Load transient response analysis
• Multi-output supply simultaneous testing (with N3300A/N3301A)

– Compatibility & Integration

The N3302A integrates into N3300 Series mainframes via GPIB control, allowing flexible system expansion with multiple load modules for parallel testing of independent supplies or combined load scenarios.