What This 100-Position Mezzanine Header Does
The header mounts via surface mount technology and carries gold-plated contacts for reliable repeated mating cycles. Typical applications include high-density internal board stacking in telecom switches, servers, and test equipment where routing density and z-height control matter.
Stack Height Options and Board Fit
This header has a height above board of 0.254" (6.45mm) and supports two mated stacking heights: 7mm and 12mm. The 7mm stack is the tighter option for slim enclosures; the 12mm stack gives more clearance for mid-board components or thermal management. The 0.60mm pitch is the tightest common mezzanine pitch — it packs 100 I/O into a footprint roughly 30mm long, which demands careful trace routing and a PCB fab capable of 0.30mm lines and spaces between pads. The board guide feature is not optional for production assembly: without it, the narrow pitch makes pin stubbing a real risk during manual or automated mating.
The FX8C-100P-SV2(92) shares the same 100-position count, 0.60mm pitch, gold plating, and SMT mounting with its siblings FX8C-100P-SV4(92) and FX8C-100P-SV(92). The difference is the board height: the SV2 sits at 0.254" (6.45mm) above the PCB, while the SV4 is taller at 0.333" (8.45mm) and the SV is shorter at 0.175" (4.45mm). Each supports a different mated stack height — the SV2 gives 7mm and 12mm stacks, the SV4 gives a taller stack, and the SV gives a lower one. Choose the variant that matches your enclosure z-height and the mating receptacle's specified stack height. All three are active and interchangeable in footprint, so swapping requires only a board height change, not a layout re-spin.
No last-time-buy window or end-of-life notice exists. There is no official direct cross-reference beyond the FX8C series siblings listed above; the FX8 base product number covers the family, but the suffix (SV2) specifies the exact board height and stack height combination.