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VPX55-31BEHU Back End Holdup Unit

NAI’s VPX55-31BEHU is a 600 Watt DC/DC Holdup Module which plugs directly into a standard 3U VPX chassis with a VITA 62, 1.0” power supply slot. The VPX55-31BEHU stores energy from the VS1 (+12 VDC output) provided by an NAI DC/DC power supply and it can be used on the "backend" of a variety of NAI VPX power supplies to provide Holdup Time. This approach greatly minimizes EMI and Efficiency losses.

Designed to meet standard 3U VPX (VITA62) mechanical requirements, the VPX55-3HU, is a perfect companion unit for all NAI VPX55 series +28 VDC input DC/DC converters or VPX57 series +270 VDC input DC/DC converters.

  • Address the need for 3U VPX power applications needing an optional VITA 62 Energy Storage Module
  • Standard VPX-compatible connector per VITA 62
  • Compatible with System Management Bus per VITA 46.11
  • Off-the-shelf solution for VITA 46.0 and VITA 65 systems
  • Compatible with VITA standard I/O, signals, and features
  • Designed to work with the NAI VPX55-3 and VPX57-31 families of DC/DC Converters
  • Wedgelock, Plug-in Design (conduction-cooled)
  • Optional Current Share
  • Synchronization between multiple units
  • Holdup
  • +3.3 VDC Standby Output
  • Fault Protection
  • Built-In-Test (BIT)

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