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Electronics Component

1/16th brick DC/DC provides 300 W at high efficiency

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Flex Power Modules has launched their PKU4317D series of DC/DC converters in an industry-standard, low profile, 1/16th brick format, 33.02 x 22.86 x 11.3 mm. The part operates over an input range of 48 – 60 VDC with a regulated and adjustable output of 12 VDC rated at 25 A/300 W.

Efficiency is high at 96.4% at 48 Vin and half load, remaining above 95% from light to full load with advanced thermal design allowing a wide hot-spot operating temperature of -40°C to +125°C. Isolation rating is 2250 VDC input to output, and meets safety requirements according to IEC/EN/UL 62368-1. MTBF is 11.8 million hours according to Telcordia SR-332 Issue 2 Method 1 at +40°C. The product is fully protected against overtemperature, input under voltage and output over-voltage, over-current and short circuits. Start-up into a pre-biased load is possible and is monotonic. A remote-control input is also provided.

The PKU4317D meets ‘Class B’ EMI conducted emissions limits according to EN 55032/CISPR 32/FCC part 15J with a simple external filter and withstands input transients up to 80 VDC according to ETSI EN300 132-2 and Telcordia GR-1089-CORE.
The part may be cooled as an open frame module with derating dependent on airflow, or by using the optional baseplate for higher power with less derating in airflow or by fixing to a heatsink/cold wall. Through-hole and surface mount versions are available.

PKU4317D is now available for sampling as well as for volume production.

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