Chassis Mount 350 W DC/DC Converter has 9-36 Vdc input range.

Press Release Summary:

Offering 12, 24, and 28 Vdc outputs, TCM Series features fully input to output isolation of 2,250 Vdc, switching frequency of 200 kHz, efficiencies over 96%, and MTBF of 5.4M hr. Encapsulated 3.20 x 4.53 x 1.00 in. case is designed for backplane or enclosure mounting with or without DIN rails. Through holes are provided in case for backplane mounting, and DIN adapter is available. Threaded through holes allow installation of heatsink for extended temperature operation.

Original Press Release:

360 Watt Wide Input Range Chassis Mount DC/DC Converter

Calex Mfg. Co., Inc. of Concord California announces the introduction of the 360 Watt TCM Series of chassis mount DC/DC converters. The wide 4:1 input range of the TCM, 9 to 36VDC, make the TCM ideal for 12V battery, 24V process control and 28V military COTS applications. The chassis mount case is designed for backplane or enclosure mounting with or without DIN rails. Through holes are provided in the case for backplane mounting and a DIN adapter is available for DIN rail mounting. The TCM packs a lot of power into a compact encapsulated 3.20” x 4.53” x 1.00”H enclosure with efficiencies just over 96%. Threaded through holes are provided to allow the installation of a heatsink for extended temperature operation.

The TCM is fully isolated input to output. The isolation voltage is 2250VDC. The output voltages available are 12, 24 and 28VDC. The TCM is designed with the internal capacitance required to support one foot of connection wire on the input and output. For applications with greater wire length, the factory can assist with a solution. With battery conservation in mind, the TCM offers an ON/OFF function which reduces the input current to 2 mA while the converter is in the OFF state. The switching frequency of the TCM is 200 kHz. The case operating temperature range of the TCM is -40º to 85ºC. The storage temperature is -55º to 125ºC. The thermal impedance of the TCM without a heatsink is only 3 degrees per watt dissipated.

The TCM is protected through over current and short circuit protection, over temperature protection with auto restart and fully encapsulated for environmental protection against dust, moisture and shock/vibration. The MTBF of the TCM is 5.4M hours. The TCM is backed by Calex’s Five Year Warranty.

The product is designed and manufactured in the USA.

For more information on the TCM series go to or contact Calex at 800-542-3355/925-687-4411 (phone), 925-687-3333 (fax), Calex’s corporate headquarters are located at 2401 Stanwell Drive, Concord, CA 94520 USA.


Paul Cuff

Phone: (925) 687-4411

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