Keysight (Agilent) N8739A DC Power Supply, 100 V, 33 A, 3300 W, Programmable

The Keysight N8739A is a single-output DC power supply delivering 100 V at 33 A (3300 W maximum power) for demanding automated test equipment and general laboratory applications. Built in a compact 2U rackmount form factor with front-to-back airflow, the N8739A integrates overvoltage, overcurrent, overtemperature, and undervoltage lockout protection to guard against fault conditions. Voltage programming accuracy of 0.05% + 50 mV and current programming accuracy of 0.1% + 66 mA enable precise load conditioning. Output ripple and noise measures 100 mV peak-to-peak (25 mV rms) with 150 ms response time and 100 ms command processing time.

– Technical Specifications

• Maximum Output: 100 V, 33 A, 3300 W
• Voltage Programming Accuracy: 0.05% + 50 mV
• Current Programming Accuracy: 0.1% + 66 mA
• Voltage Measurement Accuracy: 200 mV
• Output Ripple & Noise: 100 mV p-p / 25 mV rms
• Output Response Time: 150 ms
• Command Processing Time: 100 ms
• AC Input: 85–265 Vac universal (field-configurable options: 190–240 V single-phase, 208/230/400 V single-phase, or 3-phase 50/60 Hz)
• Power Factor Correction: Supported
• Analog Control: 0–5 V, 0–10 V, 0–5 kΩ, or 0–10 kΩ input
• Dimensions: 432.8 × 422.8 × 88 mm (2U rackmount)
• Weight: 13 kg

– Key Features

• Standard protection: OVP, OCP, OTP, UVL, and PFE (Power Factor Error)
• LXI-compliant interfaces: GPIB, LAN, USB
• Integrated web server for browser-based remote control
• Front panel voltage and current knobs with integrated metering
• Parallel connection: up to 4 units for higher current
• Series connection: multiple units for elevated voltage

– Typical Applications

• Automated test equipment (ATE) power sourcing
• High-current device testing and validation
• Manufacturing test benches requiring distributed power

– Compatibility & Integration

Standard GPIB, LAN, and USB interfaces enable integration into existing test frameworks. The web server provides direct control from standard browsers, while analog control inputs support legacy systems. AC input configuration is factory-set and cannot be field-modified after shipment.