Bel Power Solutions UIQ High-Performance DC-DC Converters

Bel Power Solutions UIQ High-Performance DC-DC Converters offer a high-efficiency single output, in a 1/4 brick package. These 20A, 48A, and 72A converters are specifically designed for operation in systems that have limited airflow and increased ambient temperatures. The UIQ series utilizes the same pinout and input/output functionality of industry-standard quarter bricks. A heat spreader (-xDxBx suffix) provides an effective thermal interface for cold-plate and heat-sinking options. Bel Power Solutions UIQ High-Performance DC-DC Converters operate from a wide 18V to 75V input range and provide a fully regulated 3.3V, 5V, and 12V output voltage as well as optimized thermal efficiency.


  • Industry-standard quarter-brick pin-out
  • Ultra-wide input voltage range
  • Delivers 240W at 92.5% efficiency
  • Paste-in-hole (PIH) compatible
  • Withstands 100V input transient for 100ms
  • Fixed-frequency operation
  • On-board input differential LC-filter
  • Start-up into pre-biased load
  • No minimum load required
  • Meets 2250VDC insulation requirement
  • Fully protected (OTP, OCP, OVP, UVLO)
  • Positive or negative logic ON/OFF option
  • Low height of 11.18mm (0.44")
  • Weight: 48g without baseplate/heat spreader, 62g with baseplate/heat spreader
  • High reliability: MTBF = 14.3 million hours, calculated per Telcordia SR-332, Method I Case 1
  • Approved safety standards: UL/CSA60950-1, EN 2nd Ed 60950-1 2nd Ed, and IEC60950-1 2nd Edition (in process)
  • Designed to meet Class B conducted emissions per FCC and EN55022 when used with external filter
  • All materials meet UL94, V-0 flammability rating


  • Intermediate bus architectures
  • Data communications/processing
  • Servers, workstations
Publicado: 2014-05-15 | Actualizado: 2020-05-20