The 2-331272-7: This is a single pin socket from TE's Series 2 family, designed to accept a header pin with a diameter between 0.022" and 0.025". The closed-bottom design means the socket base is sealed — no solder or flux wicks up into the contact area during assembly. Socket depth is 0.125" (3.18mm), overall length 0.138" (3.51mm), and the flange diameter is 0.070" (1.77mm). The mounting hole diameter is 0.052" (1.32mm) — that's the hole you drill in the board or panel for press-fit installation.
TE Connectivity has marked 2-331272-7 as Obsolete. The base product number is 331272. For a BOM line that needs this exact socket, the only channel is independent surplus distribution. We source it per RFQ — quantities are lot-specific, and availability is confirmed at quote time. No stock-holding claim; the part is quoted to order.
Mating Fit and Termination Details
The socket accepts a pin diameter of 0.022" to 0.025" — that's the range for standard 0.025" square header pins commonly used in TE's own header series. The socket depth of 0.125" gives enough engagement length for a reliable connection. The closed bottom prevents solder from entering the contact area. Packaged in Bulk — individual sockets, not tape-and-reel. That's typical for hand-assembly or low-volume production.