The 80-Position Mezzanine Receptacle for Tight Stacking
The Hirose FX6-80S-0.8SV2(71) is an 80-position receptacle from the FX6 series, designed for board-to-board mezzanine stacking where the z-height budget is tight.
That range covers the most common mezzanine gaps for parallel PCB assemblies — think processor boards stacked over a baseboard, or a display driver card spaced above a main logic board. The 0.236" (6.00mm) height above board is the receptacle's own profile; the total stack is the sum of both halves.
Board Guide and SMT Mounting
A board guide is integrated into the housing, which helps align the two halves during manual or automated assembly — the guide pins take the shear load before the signal contacts engage. Surface-mount termination keeps the assembly reflow-compatible, and the tube packaging feeds pick-and-place machines without a reel change.
Position Count Choices in the FX6 Series
The FX6 series includes 50-position (FX6-50S-0.8SV2(71)) and 100-position (FX6-100S-0.8SV2(71)) variants at the same 0.80mm pitch and 6.00mm height above board. The 80-position version splits the difference — useful when 50 positions are short for the signal count but 100 positions waste board area. There is also an FX6A-80S-0.8SV2(71) sibling that shares the same position count, pitch, and mounting; the 'A' suffix typically indicates a slight mechanical revision, so confirm the mating plug compatibility if cross-referencing.
No official cross-reference from other manufacturers is on record.