Calex Manufacturing Co., Inc. introduces the MBH Series dc-dc converters. The MBH offers up to 2100-Watts in a low profile 9.0″ x 6.5″ x 1.25″H ruggedized chassis mount package. The module weighs only 3.3 lbs. making the MBH suited for harsh shock and vibration environments in both COTS military and industrial applications. The MBH Series’ high efficiency, up to 97%, is accomplished through the use of high efficiency synchronous rectification, advanced electronic circuitry and thermal design resulting in a compact, highly-robust solution backed by a five-year warranty.
The operating temperature range for the MBH is -40 to 95 degrees C with storage of -55 to 100 degrees C. The MBH Series consists of five models. Three of the models offer a 10- to 16-Vdc input range making them designed for 12V mobile applications. The outputs are 28Vdc at 40-, 60- and 75-A. The remaining two models have a 23- to 32-Vdc input range with output voltages of 12- and 13.5-Vdc, both at 100A. All models are highly regulated and no minimum load is required for any of the MBH models.
The MBH topology utilizes a fixed switching frequency of 400kHz. All models feature ON/OFF, non-latching output over-voltage protection, thermal shutdown with auto restart, input reverse polarity protection, operating surge protection and short circuit protection. The MBH is manufactured in the USA. Units are available from stock to eight weeks.