DC Plug: 5.5x2.1mm

Attach this DC plug to your wires to add a 5.5x2.1mm Barrel Plug for power.

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Last Updated: 06/14/2024




This DC Power Plug is the standard when it comes to DC power to your devices and in your projects. Solder to the 2 internal terminals to add a power plug to your projects. The barrel jack has a 5.5mm outer diameter and a 2.1mm inner diameter. Useful for adding an easy to connect power plug to your projects, plugging into an Arduino, repairing DC power adapters or changing the barrel size on your DC power adapter.


  • DC Plug Size: 5.5mm x 2.1mm (Outer Diameter x Inner Diameter)
  • Number of internal contacts: 2 (+ and -)
  • Fits the Arduino power jack
  • Compatible with our Female DC Jack Adapter

For a version with a cable already attached, check out TS-571.

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