Board-to-Board Stacking Fit — 26 Positions at 0.100" Pitch
The 71991-313LF: The through-hole solder termination (0.118" post length) anchors the socket into the board and handles the mechanical shear from the cable or board-to-board assembly. The post finish is 78.7 µinch tin, compatible with standard lead-free wave-solder processes.
RoHS compliant.
Housing and Environmental Ratings — UL94 V-0, Blue Thermoplastic
Insulation color is blue, which aids visual identification on the board. The connector accepts bottom or top entry mating headers, with a push-pull fastening type — no locking latch, so it suits low-vibration stationary stacking rather than high-shock harness applications.