Kepco JQE150-3.5M

The Kepco JQE150-3.5M is a precision-regulated linear DC power supply engineered for laboratory and industrial applications requiring stable, low-noise output. Built around a series-pass stabilizer topology, this half-rack unit delivers 0–150 V and 0–3.5 A with exceptional load and line regulation. The front panel houses a 10-turn precision voltage control for fine adjustment resolution, paired with multi-turn current limit control. Optional digital meters (DM suffix) provide real-time voltage and current readout with ±1% and ±1.5% accuracy respectively. Output ripple and noise measure less than 3 mV RMS typical, making this supply ideal for sensitive analog circuits and precision measurement setups. The unit supports remote analog programming via external voltage or resistance inputs, enabling integration into automated test systems. All models carry CE marking (LVD, EMC, RoHS 2) and UL recognition in applicable configurations.

Technical Specifications

Output Voltage: 0–150 V adjustable

Output Current: 0–3.5 A adjustable

Maximum Power: 500 W

Voltage Regulation: Load ±0.01%, Line ±0.01% of rated voltage

Current Regulation: Load ±0.02%, Line ±0.02% of rated current

Ripple & Noise: <3 mV RMS (typical)

Output Impedance: 2.2 mΩ (voltage mode), 2 µH (current mode)

Output Isolation: 500 V DC/peak to ground

Leakage Current: <5 µA DC, <50 µA AC

AC Input: Selectable 105–125 V AC or 210–250 V AC, 47–65 Hz

Key Features

Linear series-pass regulation for ultra-low noise operation

10-turn precision rheostat for voltage control resolution

Optional digital meters with ±1% voltage and ±1.5% current accuracy

Remote programming: voltage via 1000 Ω/V or 0–1 mA; current limit via 0–1 V external source

Digital listen-only control via SN-series interfaces

Half-rack configuration for space-efficient system integration

CE and UL compliance

Typical Applications

Precision analog circuit characterization

Sensitive laboratory instrumentation

Accelerated life testing

Component qualification and burn-in

Compatibility & Integration Remote programming accepts standard 0–1 V control signals and 1 kΩ potentiometer inputs. Barrier strip rear panel terminals simplify integration into larger test frameworks. Listen-only digital control via SN-series interfaces enables non-invasive monitoring.