400W Quarter Brick Bus Converter (RBQ Series)

Murata Power Solutions
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The RBQ series provides the industry's highest efficiencies of up to 96% from a standard DOSA compliant quarter-brick package and is designed to operate in most applications with convection cooling. The RBQ-12/33-D48 operates from a standard TNV network supply of 36 to 75 VDC around a nominal 48 VDC, and is ideal for use in a host of telecommunications, enterprise IT and wireless networking infrastructures that use a distributed power or regulated intermediate bus architecture.


  • Output of 12V up to 33A in a quarter-brick package
  • Input voltage range of 36-75V (48V nominal)
  • High efficiency up to 96% at full load
  • On/Off control (Negative or Positive logic)
  • Load sharing for higher power or N+1 applications
  • Operating baseplate temperature of -40°C to +110°C
  • Input-output isolation to 2250Vdc (BASIC insulation)
  • Designed to meet UL/EN 60950-1, CSA-C22.2 No. 60950-1, 2nd edition safety approvals


  • Telecom, wireless
  • Distributed Power Architecture
  • Robotics
  • Test Equipment
  • Homeland Security