Select Page

VPX 371 – High Power – VITA 62 VPX Power Supply

WIENER VPX power supplies are commercial off-the-shelf (COTS), conduction cooled single stage converters according to the ANSI/VITA 62.0 specification. They can be used to power a VPX chassis and will fit into the standard envelope defined by VITA 46.0 specifications.

Using state of the art switching power technology a wide input range voltage range as well as high overall efficiency is achieved. The VPX715 series offers highest output power on all 6 DC output channels which makes it a perfect power supply for test and development applications.
The VPX power supply mechanical dimensions are 3U x 4HP (0.80” slot). It is outfitted with connectors, keying and alignment mechanism as per VITA 62.


VPX371 Power Supply Features

  • Compliant to VITA 62 baseline specification (mechanical specification, connector and keying, power rails)
  • Up to 715 W maximum / 600W continuous power
  • Parallel mode with Hartmann Electronic Power-Backplanes possible
  • Up to 88% peak efficiency
  • 6 (5 independent) output voltages
  • 28V DC input voltage (19V … 35V)
  • Voltage sense controlled, Over Voltage, Over Current, Over Temperature protection
  • Ruggedized to MIL-STD-810
  • Operating Temperature -40°C to 85°C
  • Dimensions: 100.0 mm x 170.0 mm x 20.3 mm    (3.9” x 6.69” x 0.8”)
  • Weight: 0.6kg (1.23 lbs)

Ordering Information

Standard configurations (others possible by request).

VPX371DMA715W VPX VITA62 power supply

Note: EOL product! Not recommended for new designs. Please use VPX340DMA or VPX336DMA instead!

Technical Information

715W VITA62 VPX Power Supply

High density, conduction cooled power supply according to VITA62 base specification.

Power supply


VS1 [+12V]

VS2 [+3.3V]

VS3 [+5V]

Vaux1 [+12V]

Vaux2 [-12V]

Vaux3 [+3.3V]


28 V DC

21 A

 50 A*

40 A

4.2 A

4.2 A

7 A**

* -> may be limited by connector or power backplane rating, 
** -> depending on temperature, estimated 5A at 85C, 3.3V aux is taken from VS2 and protected with fuse, 3.3Vaux is not a seperate power circuit

Technical Details


Form Factor 3U VPX
Pitch 4HP / 0.8"


0.6 kg / 1.23 Lbs / 21.2 oz.

Operating Temperature

-40°C to 85°C

Storage Temperature

-55°C to 105°C

Input to Output Insulation


Input to Output Isolation with Case


 Input to Case Ground Isolation


 Output to Case Ground Isolation


Case Ground to Safety Ground Resistance

< 10 mOhms

Maximum Output Power 715W
Maximum Input Power ~760W
Maximum Dissipated Power @ max. Power ~45W
Minimum Turn ON Voltage >20V
Minimum Turn OFF Voltage 19V Hysteresis
Maximum Continuous Input Voltage 35V
Maximum Short Time Input Voltage (15s) 36 V
Maximum Currents 12V / 3V3 / 5V 21 A / 50 A / 40 A
Fixed Switching Frequencies 12V / 3V3 / 5V 120 kHz / 125 kHz / 130 kHz
Peak Efficiencies 12V / 3V3 / 5V converters 94% / 92% / 92%
Max. Output Ripple and Noise: 12V / 3V3 / 5V 15 mVrms / 4 mVrms / 4 mVrms
(0-20 MHz Bandwidth) 65 mVpp / 27 mVrms / 27 mVpp
Line Regulation: 12V / 3V3 / 5V 40 mV / 2 mV / 4 mV
Vin=Vin,min to Vin,max, Io and Tc fixed 0.1%
Load Regulation: 12V / 3V3 / 5V 70 mV / 2 mV / 4 mV
  Vin=Vin,nom, Io=Io,min to Io,max, Tc fixed < 0.1%
Over voltage Protection: 14.4 V / 4.1 V / 6.1 V (hardware)
Temperature Protection Sensing Point (identical to case) 85°C (Latching)
Maximum Internal Working Temperatures 125°C


Protection / Control Logic / Timing  
Protection OVC, OVT, OFLW
Control Logic only ENABLE/INHIBIT, FAIL, no other utility or power supply specific signals

Minimum input voltage start up rise time

> 50 V/s
MIL Standard Compliance as per VITA 62 specification
MIL-STD-461F (EMI) Compliance Compliance has to be achieved with external filter
MIL-STD-704F Compliance Compliance has to be achieved with external filter. External hold-up circuit optional.
MIL-STD-1275D Compliance Compliance has to be achieved with external filter.


Compatibility / Environmental  
Compatibility VDE 0805, IEC 950
Tested and passed

-    Altitude: MIL-STD-810F, Methode 500.4, Procedure II

-    Vibration: MIL-STD-810G, Methode 514.6 D-1, Category 12

-    Shock: MIL-STD 810G, 40g, 11ms semisinusoidal


Request a Quote

Learn how W-IE-NE-R products can add power, boost speed and bring rugged durability to your project.

  • This field is for validation purposes and should be left unchanged.