4:1 input 204 W Quarter-brick DC/DC converter (UWQ Series)

Murata Power Solutions
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Measuring just 58.4 x 36.8 x 11.7 mm and boasting an efficiency of 92%, the UWQ series has an ultra-wide 4:1 input voltage range of 18 – 75 VDC around a nominal 48 VDC input. Providing a single output voltage of 12 VDC up to 17A of current with a line regulation of +/-1% and load regulation of +/-1.5%, the UWQ series is idea for applications that require a regulated bus converter. The input to output isolation is certified to 2,250 VDC in accordance with the internationally recognized safety standard EN/UL60950.

Controls include remote On/Off control of either negative or positive polarity. In addition the converter has a number of protection features including over current, over temperature, input under voltage and output short circuit.


  • Fixed DC outputs, 12V @17A
  • Industry standard quarter brick 2.3” x 1.45” x 0.46” open frame package
  • The UWQ-12/17-Q48T is trimmable from 10.8Vout to 13.2Vout and includes output sense pins to compensate for output voltage inaccuracy delivered at the load
  • Wide range 18 to 75 Vdc input voltages with 2250 Volt Basic isolation
  • Remote ON/Off enable control
  • DOSA-compatible pinouts and form factor
  • High efficiency synchronous rectifier topology
  • Stable no-load operation
  • Monotonic startup into pre-bias output condition
  • Certified to UL/EN 60950-1, CSA-C22.2 No. 60950-1, 2nd edition safety approvals
  • Extensive self-protection, OVP, input undervoltage, current limiting and thermal shutdown


  • Optical networking applications
  • Wireless base stations
  • Microwave radio communications equipment