{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX10A-140P/14-SV1(91)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"FX10A-140P-14-SV1~191~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10A-140P-14-SV1~191~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/FX10A-140P%2F14-SV1(91)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose FunctionMax™ FX10 series, FX10A-140P/14-SV1(91), 140-position header, 0.50mm pitch, 2 rows, surface mount, 5mm mated stacking height, gold-plated contacts, RoHS compliant.","salesMarkdown":"The Hirose FX10A-140P/14-SV1(91) is a 140-position header from the FunctionMax™ FX10 series, built for board-to-board mezzanine stacking at a 5 mm mated height. The 0.020\" (0.50 mm) pitch packs 140 circuits into a dual-row layout — that density means the board layout engineer needs to plan trace escape and via fan-out carefully, because the narrow pitch leaves little room for wide traces between pads. Gold-plated contacts (4.00 µin) on the mating interface handle the signal duty for repeated connect-disconnect cycles in controlled environments, while the ground plate and board guide features help align the pair during blind-mate assembly and provide a low-impedance return path. ## 5 mm Stack Height — the Z-Axis Budget The mated stacking height is 5 mm — that is the z-axis dimension from the top of the bottom board to the bottom of the top board when the header and receptacle are fully mated. ## How It Stacks Against the 3.50 mm Sibling The closest same-series peer is the FX10A-140P/14-SV(91) — identical 140-position count, 0.50 mm pitch, and gold plating, but with a 0.138\" (3.50 mm) height above board instead of the 4.50 mm of this part. That 1 mm difference in the header height changes the mated stack height: the 3.50 mm version mates to a lower-profile receptacle for a tighter z-axis budget. The FX10A-140P/14-SV1(91) with its 4.50 mm height gives more clearance for components on the underside of the top board. Both are active, both are surface mount — the choice comes down to the board-to-board gap your enclosure allows.","metaTitle":"Hirose FX10A-140P/14-SV1(91) FunctionMax™ FX10, 0.50mm Pitch","metaDescription":"Hirose FX10A-140P/14-SV1(91) FunctionMax™ FX10 header, 140 positions, 0.50mm pitch, 5mm stack height, gold contacts, RoHS. Active production, sourced to order.","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, Ground Plate, 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":"140","Mated Stacking Heights":"5mm","Contact Finish Thickness":"4.00µin (0.100µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.4900","priceTiers":[{"qty":1,"price":"$7.49000","currency":"USD"},{"qty":10,"price":"$6.77200","currency":"USD"},{"qty":25,"price":"$6.39800","currency":"USD"},{"qty":50,"price":"$6.24180","currency":"USD"},{"qty":100,"price":"$5.92970","currency":"USD"},{"qty":250,"price":"$5.30552","currency":"USD"},{"qty":500,"price":"$4.99344","currency":"USD"},{"qty":1000,"price":"$4.36926","currency":"USD"},{"qty":2000,"price":"$4.27564","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/dd341c0f6d8db12322424d9acdd6dcc2.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/FX10A-140P%2F14-SV1(91)/alternatives.json"},"ai":{"faq":[{"question":"Is the FX10A-140P/14-SV1(91) RoHS compliant?","answer":"Yes, the FX10A-140P/14-SV1(91) is listed as RoHS Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10A-140P-14-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-140P-14-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":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}