80-Position Center Strip Plug for Board-to-Board Stacking
The Hirose FX2-80P-1.27SV(71) is an 80-position plug from the FX2 series, designed as a center strip contact connector for parallel board-to-board stacking. It uses a 1.27mm pitch across two rows, with surface mount solder tails that suit automated pick-and-place assembly.
At 1.27mm pitch, the 80 positions fit into a board footprint roughly 50mm long — the same pitch as the matching FX2 receptacle, so the trace routing between layers stays consistent. The SMT termination means the solder joints are on the same side as the components, which simplifies the reflow profile but requires careful stencil design for the fine-pitch pads.
Gold Plating Grade and Mating Reliability
The gold-over-nickel underplate prevents base metal corrosion in non-sealed environments, so this plug works in office-grade and light industrial enclosures without conformal coating on the connector.
The tray packaging (standard for this order code) suits medium-volume assembly lines that feed pick-and-place machines directly from the tray.
Mating with the FX2 Series Receptacle
This plug mates with the Hirose FX2 series receptacle, specifically the FX2-80S-1.27SV (the 80-position SMT version). The center strip contact arrangement aligns with the receptacle's dual-beam contacts, providing a wiping action on insertion that clears surface oxides. The 1.27mm pitch is consistent across all FX2 series members, so the board layout for the receptacle footprint is identical regardless of position count — only the length scales.