The Hirose FX6-40P-0.8SV2(71) is a 40-position header from the FX6 series of board-to-board mezzanine connectors. It uses a 0.80 mm pitch dual-row layout with gold-plated outer shroud contacts, surface-mount terminated.
Stack Height Selection: 7 mm vs 9 mm
The mated stacking heights of 7 mm and 9 mm set the board spacing. At 0.80 mm pitch, the 40 positions give a compact footprint.
Mating Half and Assembly
The mating receptacle for this header is the FX6-40S-0.8SV2(71), a 40-position center-strip contact receptacle. Both use gold-plated contacts and surface-mount termination. No secondary locking hardware — the shroud-to-strip interface holds the stack once mated.