Pin socket for high-cycle, high-temp board-level interconnects
The TE Connectivity 50865-2 is a PCB pin socket from the Series 4 family, designed to accept round pins with a diameter range of 0.034" to 0.041" (0.86mm to 1.04mm).
Fit check: pin diameter and mounting hole
The socket accepts a pin diameter from 0.034" to 0.041" — a tight range that covers standard 0.040" round pins used in many TE and third-party headers. The required mounting hole diameter is 0.072" (1.83mm), and the flange diameter is 0.089" (2.26mm) — the socket sits flush against the board surface after press-in. Socket depth is 0.247" (6.27mm), meaning the captured pin length inside the socket is about half the overall length of 0.260" (6.60mm).
It is RoHS Compliant, and the Bulk package is the standard supply format.