The QMJ Series of DC/DC converters from Contech (Concord, CA), a division of Calex, offers up to 20 Watts of fully regulated output power. The series offers a 4:1 input range with nominal input voltages of 24 VDC and 48 VDC. Single outputs offered are 3.3, 5, 12, and 15 VDC. Dual outputs are ±12 and ±15 VDC.

The QMJ Series of DC/DC Converters
The 1 × 1" package operates with efficiencies as high as 90%. Features include remote On/Off, output trim, and short circuit protection. The RoHs-compliant QMJ, which has an operating ambient temperature range of -40 to +70 °C, is encapsulated with a thermally conductive potting compound in a six-sided metal case.

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This article first appeared in the December, 2011 issue of Defense Tech Briefs Magazine.

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