ConTech’s DC/DC Converters Come with Remote On/Off Function

Press Release Summary:

QMJ Series of DC/DC Converters are designed to deliver 20W of regulated output power with 4:1 input range for 24VDC and 48VDC nominal voltage. Housed in 1 x 1 in. package, units offer single (3.3, 5, 12, and 15VDC) and dual outputs (±12 and ±15VDC). These converters feature -40 to +70°C operating temperature range and is encapsulated in six-sided metal case. Converters come with short-circuit protection, output trim and RoHS certification.

Original Press Release:

20-Watt 1”x 1” DC/DC Converter with a 4:1 Input

ConTech, a Division of Calex, announces the “QMJ” Series of DC/DC converters. The QMJ Series offers up to 20 Watts of fully regulated output power. The series offers a 4:1 input range with nominal input voltages of 24VDC 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 QMJ 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 QMJ is -40 to +70°C 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 QMJ 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 QMJ 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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