This is the standard DC power adapter with 2.1 mm center hole. This jack is compatible with many wall wart power supplies. The power adapter has three pins: pin 1 is connected to the center pole and comes out of the back of the adapter, pin 2 comes out of the bottom of the jack and is connected to the side wall, and pin 3 comes out the side of the jack and is automatically switched based on whether there is anything plugged into the jack. When the jack is not plugged, pins 2 and 3 are shorted together; with an adapter plugged, pin 3 is disconnected. This feature makes it easy to create a system that is powered by a wall adapter when one is plugged into the jack and by a battery the remainder of the time.
- 2.1 mm hole
- 3-pin output
- 1x barrel jack
Barrel Jack Power Adapter Female
- Power Adapter Barrel Jack to solder and power a board.
- Availability: 42 (France)
- 0.58€ Euro