Crystalspace P1U ”Vasik” Power Supply


Crystalspace P1U power supply is the smallest and most advanced power supply in the market. It suits well for densely packed 1 and 2 unit CubeSats. It uses fast maximum power point tracking boost converters to charge an integrated doubled battery pack. Battery output is fed through duplicated converters that can provide 3.3 V, 5 V, 12 V. Unregulated 3.7 V battery and regulated buses are
available through individually selectable current limited and latch-up protected switches. Pinouts, output voltages, and channels are changeable to user needs. Each sold unit has gone through acceptance testing.


  • 12.2 mm thick and weighs only 130 g
  • All critical components are doubled (all regulators and batteries)
  • Architecture flight-tested on successful ESTCube-1 satellite
  • Up 10 W continuous solar input
  • 3.8 Ah / 14 Wh of battery
  • 3 voltage rails + unregulated 3.7 V battery rail
  • 6 outputs with separate current limits, protection and controllable switching
  • All voltages are monitored
  • Remove-Before-Flight pin connection
  • UART or I2C communication bus available
  • Compatible with CubeSat Kit and other standard components
  • Double under-and overvoltage protection

Available Options

  • High power rail
  • Custom solutions
  • ISS launch compatibility test
P1U "Vasik" power supply

P1U “Vasik” power supply


  • 90% input converter efficiency
  • Power consumption: 15 mW

Product Properties

  • Dimensions: 96 mm x 90 mm x 12.2 mm
  • Temperature range (excluding batteries) −40°C to 85°C
  • Mass without connector: 80 g
  • IPC-A-610 Class 3 assembly
  • Vibration and shock tested
  • Thermal vacuum tested

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