Bel Power Solutions PET750-12-050xD 750W DC-DC Power Supply

Bel Power Solutions PET750-12-050xD Front-End DC-DC Power Supply is a 750W DC-DC power supply that converts -40VDC to -72VDC voltage into an insulated main output of +12VDC for powering intermediate bus architectures in high-performance and high-reliability applications. These applications include servers, routers, and network switches. Bel Power Solutions PET750-12-050xD utilizes digital control architecture for greater efficiency, control, and functionality. This power supply meets international safety standards and displays the CE-Mark for the European Low Voltage Directive (LVD).


  • High efficiency to 94% at 50% load
  • -40VDC to -72VDC input voltage range
  • Always-on 5V/3A/15W standby output
  • Hot-plug capable
  • Parallel operation with active current sharing
  • Digital controls for improved performance
  • 20.5W/in3 high density design
  • 50.5mm x 40mm x 300mm (W x H x L) form factor
  • PMBus® communication interface for control, programming, and monitoring
  • Over temperature, output overvoltage, and over current protection
  • Status LED with fault signaling


  • Networking switches
  • High performance servers
  • Routers

Block Diagram

Block Diagram - Bel Power Solutions PET750-12-050xD 750W DC-DC Power Supply
Published: 2018-04-20 | Updated: 2022-09-02