Dubox board-to-board receptacle
The 71991-413LF is the 26-position dual-row member of Amphenol ICC (FCI)'s Dubox receptacle line, a board-to-board socket accepting either bottom or top entry. Tin-plated mating contacts at 78.7µin thickness, a 2.54 mm pitch, and an 11.04 mm mated stack height define the footprint and signal routing density. The glass-filled thermoplastic housing carries a UL94 V-0 flammability rating and is colour-coded blue for visual identification on the board.
Position count and stack height
The 26 positions of the 71991-413LF are fully loaded across two rows spaced 0.100" (2.54 mm) apart, matching the mating pitch. The 11.04 mm mated stacking height is fixed by the receptacle design — the board-to-board gap is set by this value plus the mating header's post length.