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2.1mm Barrel Type Female DC Power Jack

5.5mm x 2.1mm DC Power Plug with Screw Terminal Block
Availability :    6
Quantity :

  • 5.5mm OD 2.1mm ID Barrel Plug (Female)
  • Socket Internal Pin: 2.1mm
  • Socket Internal Diameter: 5.5mm
  • Overall length: 38mm
  • Max rating: 1amp @ 12V


  • Power supplies for Arduino
  • Single Color LED Strip Light
  • CCTV Security Camera
  • DC or AC Cameras
  • For: 3528 5050 single color LED strip, CCTV Camera 

This adapter allows you to plug a (male) barrel jack connector to bare wires. One end has screw terminals and the other has a 5.5mm×2.1mm, center-positive (female) barrel jack. If you have a power supply or battery pack with a barrel jack and want to plug it into a breadboard or perfboard this adapter provides the simplest solution.

This adapter allows you to connect a DC power supply (e.g., wall wart) to a board or project without a barrel jack connector. It's quite common to run into the problem of battery and power supply connectors not matching the jacks on electronic devices, thus this adapter helps make a secure connection from the plug of our power supplies to wires that we can use to power our projects.

This adapter has a 2.1mm DC barrel jack (female) on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a center-positive configuration, which is the most common.