{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX10A-168P-SV1(91)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"FX10A-168P-SV1~191~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10A-168P-SV1~191~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/FX10A-168P-SV1(91)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose FunctionMax™ FX10 series, FX10A-168P-SV1(91), 168-position header, 0.020\" (0.50mm) pitch, dual-row, surface mount, gold-plated contacts, 5mm mated stacking height.","salesMarkdown":"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.","metaTitle":"Hirose FX10A-168P-SV1(91) FunctionMax™ Header, 168 Pos","metaDescription":"Hirose FX10A-168P-SV1(91) FunctionMax™ FX10 header, 168 positions, 0.50mm pitch, 5mm stacking height. Gold contacts, SMT, RoHS. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"FunctionMax™ FX10","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.020\\\" (0.50mm)","Series":"FunctionMax™ FX10","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Board Guide, Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Header, Outer Shroud Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.177\\\" (4.50mm)","Base Product Number":"FX10","Number of Positions":"168","Mated Stacking Heights":"5mm","Contact Finish Thickness":"4.00µin (0.100µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.6700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.67000","currency":"USD"},{"qty":10,"price":"$6.02700","currency":"USD"},{"qty":25,"price":"$5.69400","currency":"USD"},{"qty":50,"price":"$5.55500","currency":"USD"},{"qty":100,"price":"$5.27720","currency":"USD"},{"qty":250,"price":"$4.72176","currency":"USD"},{"qty":500,"price":"$4.44400","currency":"USD"},{"qty":1000,"price":"$3.88850","currency":"USD"},{"qty":2000,"price":"$3.80518","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f981bb7e97916a5d73e2165ccb22c90b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the exact stacking height for FX10A-168P-SV1(91)?","answer":"The mated stacking height is 5mm, set by the header's 0.177\" (4.50mm) height above board plus the mating receptacle."},{"question":"Is FX10A-168P-SV1(91) RoHS compliant?","answer":"Yes, it is listed as RoHS Compliant."},{"question":"What is a direct equivalent or cross for FX10A-168P-SV1(91)?","answer":"There is no direct second-source cross — the FX10 series is Hirose-proprietary."},{"question":"Can FX10A-168P-SV1(91) be used with a 5mm stacking height?","answer":"Yes — the 5mm mated stacking height is the specified value for this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10A-168P-SV1~191~2","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/hirose-electric-co-ltd/FX10A-168P-SV1~191~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}