Compact power supply is cooled by conduction

The new JPS250 Quad is a versatile four-output power supply in a rugged U-channel chassis that is designed for space-sensitive applications or where conduction cooling is required.

Complementing the JPS250 single output range, the JPS250 Quad is a versatile four-output power supply in a rugged U-channel chassis that is designed for space-sensitive applications or where insufficient system air is available and a conduction cooled rating is required.

At 38mm (1.5inch) high it fits into a standard 1U rack and delivers 250W at up to 50C ambient with only 18 ft3/min of cooling or 200W with convection cooling.

The chassis is 203mm (8inch) long and 107mm (4.2inch) wide.

The JPS250 series uses zero voltage switching technology to achieve up to 90% efficiency and low noise and ripple of +/-1% maximum peak-to-peak.

The high efficiency means less heat generation and improved MTBF at 255,000 hours to MIL-HDBK-217F.

There are four models in the quad range with output voltages from 3.3/5/+/-12V, including high current outputs on both V1 and V2, +/-5/+/-12V, 5/+/-12/24V to 5/+/-15/24V.

The power supplies accept input voltages from 85 to 264VAC with active power factor correction to EN61000-3-2,-3 standards.

All have international safety approvals and meet Class B conducted EMI requirements.

Other features include a separate fan output, remote sensing, remote on/off, +/-10% output voltage adjustment on V1, over-temperature, over-voltage and over-current protection.

Line regulation is +/-0.5% and load regulation is +/-1% for V1 and V2, +/-5% for V3 and V4.

AC OK and DC OK signals are provided and active current sharing and fan covers are available as options.

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