Closed-bottom socket, Series 2
The 2-331272-1 is a closed-bottom pin header socket from TE Connectivity AMP Connectors Series 2, accepting pin diameters from 0.018" to 0.021" (0.46mm to 0.53mm). The beryllium copper contact carries a tin finish rated to 126°C, with a socket depth of 0.125" (3.18mm) and no tail for through-hole solder termination.
