Standard Barrel Jack 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
- Standard Barrel Jack DC power adapter with 2.1 mm center hole compatible with many wall wart power supplies. It can be soldered on a board or used for prototyping.
- Availability: 123 (Canada)
- $ US0.60 USD 250.00 Left For Free Shipping
- 5 or more $ US0.55
- 10 or more $ US0.50
- 25 or more $ US0.45