NQB-N Series
420~468 W Intermediate Bus Quarter Brick Dc-Dc Converter

The NQB-N is a series of fully regulated 1/4 brick intermediate bus dc-dc converters housed in an industry standard 5-pin package. The converters incorporate power-optimizing firmware designed to maximize and flatten the efficiency curve, providing peak performance across a much wider range of loading conditions. With typical efficiencies as high as 96.4% and optimized efficiency from 20% to 100% load, the modules are ideal in space constrained applications where loading conditions can vary greatly, including next-generation ICT (Information and Communication Technology) equipment.


  • Up to 468 W isolated output
  • Quarter brick package
  • Industry standard 5-pin package
  • 4.0~13.2 Vdc programmable output voltage
  • High efficiency, typ. 96.4% at half load, 12 Vout
  • Fully regulated
  • 2250 Vdc input to output isolation
  • DROOP Load Sharing with 10% current share accuracy
  • Pin and function compatible with Architects of Modern Power® product standards


  • Baseplate for improved thermal performance
  • Through hole or surface mount pins
  • Droop load sharing up to 842 W


  • Regulation
  • Package Type
  • Isolation (Vdc)
  • Safety Approvals
  • Dimensions LxWxH (in)
    2.3 x 1.45 x 0.445
  • Dimensions LxWxH (mm)
    58.4 x 36.8 x 11.3

Available Models

Model Number Input Voltage (Vdc) Power (W) Output Voltage (Vdc) Output Current (A) Stock Check Sample Request RFQ
NQB-420NW 36 ~ 75 420 12 35 -- Stock Check NQB-420NW -- Sample Request Request a Quote
NQB-468NM 40 ~ 60 468 12 39 -- Stock Check NQB-468NM -- Sample Request Request a Quote