Kepco JQE100

The Kepco JQE100 is a 100-watt, quarter-rack linear DC power supply engineered for demanding electronic applications requiring stable, ultra-low-noise output. This unit delivers precise voltage control via a 10-turn potentiometer and adjustable current limiting, with output ripple and noise below 3 mV. The JQE100 supports three output configurations: 0–100V at 0–1A, 0–100V at 0–2.5A, or 0–100V at 0–5A. It accepts 105–125V AC or 210–250V AC mains input (selectable) at 50–65 Hz.

Technical Specifications

Output Power: 100 W

Output Voltage Range: 0–100V DC

Output Current Range: 0–1A, 0–2.5A, or 0–5A (model-dependent)

AC Input: 105–125V AC or 210–250V AC (selectable), 50–65 Hz

Output Impedance (Voltage Mode): 5 mΩ series resistance, 2 µH series inductance

Output Impedance (Current Mode): 500 kΩ shunt resistance, 110 µF shunt capacitance

Ripple and Noise: <3 mV

Isolation Voltage: 500V DC or peak (chassis to output)

Common-Mode Current: <5 µA RMS, <50 µA peak-to-peak at 115V AC, 60 Hz

Leakage Current: <5 µA

Form Factor: 1/4 Rack

Key Features

10-turn precision voltage control potentiometer for high-resolution adjustment

Front-panel current limiting adjustable from 10% to 105% of rated maximum

Remote programming via analog resistance input (1000 Ω/Volt) or voltage input (0–1 mA)

Digital listen-only control via SN-series interfaces

External current-sense resistor capability for custom current control

Isolation voltage of 500V DC or peak between chassis and output terminals

Cold-rolled steel chassis with aluminum front panel

Low-noise cooling fans for thermal management

CE Marked (LVD EN61010-1, EMC, RoHS 2 Directive compliance)

UL Recognized

MIL-STD-461 compliant

Typical Applications The JQE100 is deployed in fault-tolerant configurations, nuclear installations, and U.S. Department of Defense systems where reliability and noise performance are critical.

Compatibility & Integration Analog and digital interfaces support remote control and monitoring. External current-sense capability allows integration into custom power architectures.