0.80 mm Pitch Mezzanine Header, 100 Positions, 5.00 mm Stack Height
The Hirose FX6-100P-0.8SV(71) is a 100-position header with outer shroud contacts, part of the FX6 series of board-to-board mezzanine connectors. It sits on a 0.031" (0.80mm) pitch in two rows, with a height above board of 0.197" (5.00mm) — the mated stacking heights are 5 mm and 7 mm, depending on the mating receptacle. The contacts are gold-plated, and the header is surface-mount terminated. A board guide is integrated into the housing to align the pair during assembly and take shear off the signal pins.
This header mates with the FX6 series receptacle, specifically the FX6-100S-0.8SV2(71) for a 100-position match. The mated stacking heights are 5 mm and 7 mm — the 5.00 mm height above board on this header means the total stack is the sum of the header height and the receptacle height. The board guide aligns the two halves during mating, preventing pin stubbing on the receptacle's center strip contacts.
Comparing the 100-Position Height Variants
The FX6-100P-0.8SV2(71) is the same 100-position, 0.80 mm pitch header but with a height above board of 0.275" (6.99mm) instead of 0.197" (5.00mm). The taller variant targets a different board stack — 7 mm vs 5 mm — so the choice between them is purely a z-height budget decision. All other specs (pitch, gold plating, SMT termination, board guide) are identical.