AC/DC power supply module for challenging and space-critical applications

13-04-2021 | XP | Power

XP Power has released a new range of low profile, half brick, baseplate cooled AC/DC power supplies that need no external circuitry for operation or EMC compliance. Models in the new ASB75 series provide compact, fanless power with baseplate cooling for ITE, IoT, general industrial and harsh or rugged applications.


The complete AC/DC power supplies deliver up to 75W of power from a universal (90-264VAC) input and offer an integral AC fuse, EMC filter and hold-up capacitor, which simplifies integration and requires less space.


These devices offer baseplate cooling, enabling operation in sealed metal enclosures utilising passive cold wall cooling to transfer any heat to the outside of the equipment. An optional heatsink is also offered pre-mounted or separately, enabling designers to utilise conventional convection or forced air cooling where preferred.


There are five models in the range, providing single output voltages of 12V, 15V, 24V, 36V or 48V. Efficiency levels as high as 90% minimise unwanted heat generation and contribute to an outstanding power density of 20W/in³ within an industry-standard half-brick package measuring only 2.28” x 2.4” x 0.67” (57.9mm x 61mm x 17mm).


With a no-load current draw of less than 150mW of power, the models significantly lessen standby power demands of end equipment, enabling them to satisfy challenging modern efficiency standards.


The units offer EMC compliance as standard with no external components needed to meet EN55032 Level B for conducted and radiated emissions and offer immunity to meet EN61000-4. Safety compliance to UL/EN/IEC62368-1 also comes as standard.

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