Calex Introduces Input Power Conditioning Module

Calex Mfg. Co., Inc. announced the availability of the PQ-28 dc input conditioning module. The PQ-28 has an extremely wide (10:1) input range of 11 to 100Vdc. The unit is rated up to 200W and is housed in a compact 2.28 x 2.4 x 0.5" package. The PQ-28 is designed to interface with the MIL-STD-1275, 28Vdc power bus and is designed to meet UL60950. The PQ-28 is optimized for use with Calex dc-dc converters and is well suited as an ultra-wide input range front end or alternatively as a module for MIL-STD-1275 compliance.

The efficiency of the PQ-28 is 95%. The switching frequency of the PQ-28 is 200kHz. Load regulation is typically 0.1%. The temperature coefficient of the PQ-28 is 150 ppm/C. The baseplate to pin isolation is 700Vdc. The case operating temperature range of the PQ-28 is -40 to 100°C. The MTBF according to MIL-HDBK-217F is just over 170k hours. All units offer input reverse polarity protection as well as short circuit protection with auto restart.

The PQ-28 is available from stock to six weeks.