Power VPX
CAVU Aerospace
800, 1000W Power Module in VPX form factor
Technical specifications
- Form factor
- 3U VPX power module per VITA 62.0 / VITA 48.2, 2.00 inch pitch
- Envelope (max)
- 3.94 in W × 6.63 in L × 2.00 in H
- Mass
- 3.6 lb typical, 3.8 lb maximum
- Cooling
- Conduction cooled through card edge and wedge-lock path
- Operating temperature
- −40 °C to +85 °C card-edge
- Storage temperature
- −55 °C to +105 °C
- Supply voltage
- 16–36 VDC continuous
- Nominal input
- 28 VDC
- Full-power input
- 27–36 VDC
- Power consumption
- 1000 W-class output power
- Efficiency
- 90% at nominal input & 50–100% load
- +12 v_main output
- +12.0 VDC, 80 A, 960 W
- +3.3 v_aux output
- +3.3 VDC, 15 A, 50 W
- Total output power
- 1000 W class, allocated as 950 W + 50 W
- Interfaces
- VITA 62.0 VPX P0
- Hold-up
- Integrated hold-up capacitor bank
About
The PSU-Polar-3U is a 3U SpaceVPX power supply card that converts the spacecraft 28 V DC bus (18 V – 36 V range, MIL-STD-704F) to the regulated 5 V, 12 V, and 3.3 V rails required by the SpaceVPX backplane utility plane. Aligned with VITA 62, it occupies a standard 3U SpaceVPX slot and delivers power directly via the P0/J0 utility connector without additional cabling. Over-voltage, over-current, over-temperature, and short-circuit protections are implemented on all output rails. The PSU-Polar-3U is radiation-tolerant and qualified for the temperature and vibration environments associated with LEO through GEO missions.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.