3.3V and 5V Breadboard Power Supply

  • $3.95

Will be in stock after

This power supply attaches neatly to the power rails of our larger breadboards, and supplies a selectable 3.3V or 5V and ground to each power rail.


  • Input voltage: 6.5 to 12V through a 6mm barrel connector (centre positive)
  • Output voltages: selectable; 5V or 3.3V and ground on each rail
  • Maximum output current: 700 mA per rail
  • Includes power switch and indicator LED
  • Uses dual AMS1117 low-dropout regulators to provide 3.3V and 5V supplies.
  • Handy USB type A output socket on board, as well as an extra set of headers if you are using our smaller bread boards without power rails.

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