The mated stacking height of 5mm sets the board spacing — critical for enclosure z-height budgeting. Gold-plated contacts (4.00µin) handle moderate mating cycle duty typical of internal mezzanine links in telecom, networking, and industrial computing.
Stack Height and Board Spacing — The Key Selection Parameter
The 5mm mated stacking height is the defining dimension for this variant. It sets the clearance between parallel PCBs in a mezzanine pair — match it to the board standoffs and enclosure keep-out.
Pitch and Footprint — Routing Density
At 0.50mm pitch, this header packs 168 circuits into a compact footprint. The dual-row arrangement gives two signals per row width, which keeps the board area smaller than a single-row equivalent at the same pitch. The fine pitch means trace routing between pads is tight — plan for micro-via or thin-track escape routing on the inner rows.
Contact Plating — What 4.00µin Gold Means
If the application calls for frequent board swaps, field servicing, or exposure to corrosive atmospheres, step up to the 30.0µin gold variant (FX10A-168P-SV1(85)) for better wear and corrosion margin.
How This Variant Compares to Siblings
The FX10A-168P-SV1(91) shares the same 168-position count and 0.50mm pitch with several FX10 siblings. The key difference: the FX10A-168P-SV(91) mates at a 3.50mm stack height — use it when the board spacing budget is tighter than 5mm. The FX10A-168P-SV1(85) keeps the 5mm height but upgrades the contact finish to 30.0µin gold for higher mating cycle life. The FX10A-168P-SV1(71) is identical in height and plating but ships in tray packaging instead of Tape & Reel.