DC Power Jack Female Socket Barrel Connector - Panel Mount - 5.5 x 2.1mm.

Socket: 5.5mmx2.1mm

Mounting Hole: 11mm/0.43"

Includes insertion switch: 3rd pin is normally closed to pin 2, but upon insertion of a plug, pins 2 & 3 are disconnected. Useful for cutting power while charging or switching from batteries to external power.

PINS:

1: Center Pin

2: Outer Connection

3: Switch (NC to 2, disconnect upon insertion)