Board-Stacking Selection: Hirose FX8C-60S-SV5(93) Mezzanine Receptacle
The Hirose FX8C-60S-SV5(93) is a 60-position receptacle from the FunctionMax™ FX8C series, designed as the mating half for the FX8C header in board-to-board mezzanine stacking applications. The key selection parameter here is the mated stacking height: this receptacle supports five board-spacing options — 10mm, 11mm, 12mm, 14mm, and 16mm — giving the layout engineer flexibility in z-height budget without changing the footprint.
What the 0.60mm Pitch Means for Your Board Layout
At 0.024" (0.60mm) pitch, this is a fine-pitch mezzanine connector. The surface-mount termination and board guide feature help align the receptacle during reflow, but the tight pitch means the PCB escape routing needs careful planning — trace widths and via sizes must fit between the pads. The 60 positions in two rows keep the footprint compact, but the routing density under the connector body is the real constraint for the board designer.
How the (93) Variant Differs from the (92) Sibling
The closest functional peer is the FX8C-60S-SV5(92), which shares the same 60-position count, 0.60mm pitch, 8.95mm height above board, and active lifecycle. For most signal-level mezzanine applications this difference is not selection-critical, but if your reliability spec calls for a documented minimum gold thickness, the (92) variant gives you a number to point to.