The Hirose FX11LA-100P/10-SV(92) is a 100-position, 2-row header from the FX11 series, designed for board-to-board mezzanine stacking. It uses a 0.020" (0.50mm) pitch and outer shroud contacts, with a mated stacking height of 2mm. This connector is typically specified for parallel PCB stacking in compact electronics like laptops, tablets, and portable instruments where signal density and low profile are critical.
The 0.50mm pitch drives a tight board footprint — routing one trace between pads is standard, but the ground plate adds a dedicated return path that helps control crosstalk in dense layouts. The 1.90mm height above board, combined with the mating receptacle, sets the 2mm stack height; confirm your mezzanine card spacing before committing the BOM line. The solder retention feature helps hold the part during reflow, reducing tombstoning risk on the 100-position body.