VPX57-31 | 270VDC 400W 3U VPX Power Supply

The VPX57-31 is a 270VDC input power supply in a 3U VPX form factor that can supply up to 400W across the full -40 to 85C temperature range at full load.


VPX57-31 | 270VDC 400W 3U VPX Power Supply

  • Ideal for rugged 3U VPX power applications requiring a high voltage, +270Vdc input
  • Standard VPX-compatible connectors and I/O per VITA 62
  • Compatible with System Management Bus per VITA 46.11
  • Off-the-shelf solution for VITA 46.0 and VITA 65 systems
  • Supports all VITA standard I/O, signals, and features
  • Accepts +270 VDC input
  • Provides six outputs and I/O at up to 400 Watts
  • Continuous Background Built-in-Test (BIT)
  • Current share
  • Programmable Over Temperature Warn / with Over Temperature Shutdown
  • Input transient protection per MIL-STD-704F
  • Environmentals per Mil-Std-810G and VITA 47
  • Integrated EMI filtering per MIL-STD-461F
  • Operates at full load through the entire -40°C to +85°C temperature range

Link to Supplier Page:


Additional Information:

NAI’s VPX57-31 is the industry’s first 400-Watt DC/DC Converter that accepts a +270Vdc Input and plugs directly into a standard 3U VPX chassis with a VITA 62 1.0” power supply slot. This off-the-shelf solution for VITA 46.0 and VITA 65 systems is compatible with VPX specifications; supports all VITA standard I/O, signals, and features; and conforms to the VITA 62 mechanical and electrical requirements for modular power supplies.

The VPX57-31 switching power supply is conduction-cooled through the card edge/wedgelock. It accepts +270 VDC input voltage and provides six outputs (per VITA 62) at up to 400 Watts.

The VPX57-31 can be used either as a single-stage module or a back-end module in a multiple power supply configuration. It supports a variety of standard features, including continuous Background Built-in-Test (BIT); user programmability; I2C communication; remote error sensing; current share and protection against transients, over-voltage, over-current, and short-circuits. With its intelligent design, the VPX57-31 also has the flexibility to address special needs. Derating for rugged defense and industrial applications. It is also designed to meet the many harsh environmental requirements of military applications.