140-Position Mezzanine Header at 0.60mm Pitch
The Hirose FX8-140P-SV(92) is a 140-position header from the FunctionMax FX8 series, designed for high-density board-to-board stacking. It uses a 0.60mm pitch and arranges the contacts in two rows, with an outer shroud that protects the contacts during mating and provides polarization. The mated stack height sits at 3mm, with the header itself standing 2.85mm above the board surface. A board guide is integrated into the housing, which helps align the connector during blind-mate assembly — a practical feature when you're trying to land 140 fine-pitch contacts without stubbing a pin.