Board-to-board signal interconnect
The 4-175638-4 is the 14-position member of TE's Fine Pitch board-to-board receptacle line, a dual-row surface-mount connector at 0.049" (1.25 mm) pitch. Rated 0.5 A per contact at 50 V with tin-plated mating contacts, it handles low-current signal duty in space-constrained board stacking.
Series footprint and position count
The Fine Pitch series shares the same 0.049" (1.25 mm) pitch and 0.049" (1.25 mm) row spacing across all position counts — the 14-position 4-175638-4 fits the same board footprint as other dual-row members, so the position count alone determines circuit matching.