QHL75 Series

75W quarter brick 300VDC input baseplate cooled DC-DC converters

The QHL75 series provides a compact 75W DC-DC solution in an industry standard quarter brick package with a nominal 300VDC input and an operating range of 180 to 450VDC. This series of modules enables effective construction of distributed power architectures from AC front ends, PFC front ends, baseplate cooled ESG solutions and high voltage battery applications.

Utilizing the integral baseplate for conduction cooling gives the designer flexibility in system design. Constructed with reinforced insulation, the QHL series features an industrial operating temperature range and includes protection for over current, over temperature and over voltage.


  • Regulated single outputs from 5 to 48VDC
  • Output voltage trim ±20% (5V: -20%/+10%)
  • 180 to 450VDC input range
  • 3.0kVAC isolation
  • Industry standard ¼ brick package
  • Baseplate cooled
  • Efficiency up to 90%
  • ITE safety approvals
  • Short circuit, overvoltage & overtemperature protection
  • Remote On/Off
  • -40°C to +105°C operating temperature
  • 3 year warranty


Image Model Name Power Input Voltage Output Voltage Output Current Datasheet Stock Check RFQ
QHL75300S05 75W 180 to 450VDC 5V 15A Datasheet Stock RFQ
QHL75300S12 75W 180 to 450VDC 12V 6.25A Datasheet Stock RFQ
QHL75300S15 75W 180 to 450VDC 15V 5A Datasheet Stock RFQ
QHL75300S24 75W 180 to 450VDC 24V 3.12A Datasheet Stock RFQ
QHL75300S48 75W 180 to 450VDC 48V 1.56A Datasheet Stock RFQ
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