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Compact 25 W DC/DC Converter occupies 1 x 1 in. footprint.

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Compact 25 W DC/DC Converter occupies 1 x 1 in. footprint.
Compact 25 W DC/DC Converter occupies 1 x 1 in. footprint.
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March 13, 2014 - Offering 2:1 input range with nominal 12, 24, and 48 Vdc input, RoHS-compliant QMS Series provides up to 25 W of fully regulated output power. Single outputs are 3.3, 5, 12, and 15 Vdc, while dual outputs are 12 and 15 Vdc. Operating with efficiencies as high as 90%, converters are encapsulated with thermally conductive potting compound in 6-sided metal case and operate from -40 to +50C ambient without de-rating. Features include remote on/off, output trim, and short circuit protection.

25-Watt 1"x 1" DC/DC Converter with a 2:1 Input

1760 S. 151st St., W.
Goddard, KS, 67052

Press release date: February 20, 2014

ConTech, a Division of Calex, announces the “QMS” Series of DC/DC converters. The QMS Series offers up to 25 Watts of fully regulated output power. The series offers a 2:1 input range with nominal input voltages of 12, 24, and 48VDC. Single outputs offered are 3.3, 5, 12, and 15VDC. Dual outputs are +/-12 and +/-15VDC.

The footprint used on the 1 x 1” package is same as that of an industry standard 1 x 2”, there by offering a space saving alternative.

The QMS Series operates with efficiencies as high as 90%. Features include Remote On/Off, Output Trim, and Short Circuit Protection. The operating ambient temperature range of the QMS is -40 to +50C with no de-rating. The unit is encapsulated with a thermally conductive potting compound in a six-sided metal case for improved thermal performance in still air environments. The QMS series is RoHS compliant.

For pricing or more information, contact Calex Mfg. Co., Inc. at 800-542-3355 or fax 925-687-3333. Units are available from stock to 6 weeks. To view a complete data sheet of the QMS series go to To see our complete product line visit our website at You may contact us at or call Toll free (877) 302-4411.
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