Electronic Products & Technology

250W encapsulated dc-dc converters serve extreme environments

Stephen Law   

Electronics Power Supply / Management dc-dc converters management power

ABSOPULSE ELECTRONICS PDC 250-HSA-P59 series fully encapsulated, convection cooled 250W dc-dc converters are entirely potted with a thermally conductive MIL-grade silicon rubber compound with a UL94V-0 flammability rating. Full encapsulation provides immunity to shock, vibration, moisture, dust, salt and other contaminants, as well as ensuring heat dissipation throughout the module. Units are suitable for operation in extreme environments including transportation, heavy industry, mining, oil and gas, and power generation and power generation and distribution. Convection cooling is achieved by installing the unit on a heatsink assembly block with fins attached to the under-surface of the chassis. The heatsink assembly allows for mounting on uneven and thermally non-conductive surfaces such as brick walls, plastic and wood. The units are rated for operation over a -40oC to +70oC cold plate temperature range for full specification without derating. DIN-rail mounting clips are available.

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