{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX10A-140P/14-SV(71)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"FX10A-140P-14-SV~171~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10A-140P-14-SV~171~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/FX10A-140P%2F14-SV(71)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose FunctionMax™ FX10 series, header outer shroud contacts, 140 positions, 2 rows, 0.020\" (0.50mm) pitch, surface mount, gold contact finish 4.00µin, 0.138\" (3.50mm) height above board, mated stacking height 4mm, tray.","salesMarkdown":"## Board-Stacking Interconnect for Dense Parallel Buses The Hirose FX10A-140P/14-SV(71) is a 140-position, dual-row header from the FunctionMax™ FX10 series, designed for mezzanine board-stacking applications where signal density and a controlled impedance path matter. At a 0.020\" (0.50mm) pitch, this connector packs 140 circuits into a compact footprint — typical for routing wide parallel data buses between processor and memory boards, or FPGA-to-transceiver mezzanines. The header mates with a matching FX10 receptacle to achieve a 4 mm mated stacking height, which sets the board-to-board gap. That 4 mm z-height is a common mezzanine standard — check your enclosure clearance and component keep-out zones before committing the footprint. The flash-grade gold is adequate for typical production and field-service cycles, but not specified for high-wear or corrosive conditions — if your build sees frequent reconnects or an unsealed industrial cabinet, consider a thicker-plate variant in the FX10 family. A built-in ground plate provides a low-inductance return path close to the signal pins, which helps contain loop area and reduce radiated emissions at high edge rates. The board guide eases alignment during blind mating — without it, the fine 0.50 mm pitch leaves little room for misregistration. ## SMT Mounting and Board Retention The 0.138\" (3.50mm) height above board means the connector body sits low — helpful when the mezzanine card has tall components on the underside. Packaged in a tray, this variant is suited for manual placement or pick-and-place lines that handle tray-fed parts. If your line runs tape-and-reel exclusively, the sibling FX10A-140P/14-SV(91) is electrically identical and available in Tape & Reel, Cut Tape, and Digi-Reel packaging — same footprint, same stack height, same ground plate. ## Comparing the 140-Position Siblings The FX10A-140P/14-SV(91) shares every functional spec — 140 positions, 0.50 mm pitch, 4 mm stack height, gold plating, ground plate — but ships in Tape & Reel instead of tray. For a high-volume SMT line, the tape-and-reel packaging eliminates a tray-handling step and reduces feeder changeovers. The FX10A-140P/14-SV1(91) bumps the height above board to 0.177\" (4.50mm), which changes the mated stack height — verify your board spacing if considering that variant. The FX10A-144P-SV(71) adds 4 positions (144 total) at the same 0.50 mm pitch and 0.138\" (3.50mm) height, but omits the ground plate — a meaningful difference if your signal integrity plan relies on that return path. For a 144-circuit bus that can tolerate a slightly higher loop inductance, the 144-position part is a drop-in footprint match on the board edge.","metaTitle":"Hirose FX10A-140P/14-SV(71) FunctionMax™ Header, 140 Pos","metaDescription":"Hirose FX10A-140P/14-SV(71) FunctionMax™ FX10 header, 140 positions, 0.50mm pitch, 4mm stacking height, gold contacts, SMT. Active, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"FunctionMax™ FX10","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 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":"Tray","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":"0.138\\\" (3.50mm)","Base Product Number":"FX10","Number of Positions":"140","Mated Stacking Heights":"4mm","Contact Finish Thickness":"4.00µin (0.100µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.4200","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.42000","currency":"USD"},{"qty":10,"price":"$6.70700","currency":"USD"},{"qty":25,"price":"$6.33560","currency":"USD"},{"qty":50,"price":"$6.18120","currency":"USD"},{"qty":100,"price":"$5.87210","currency":"USD"},{"qty":250,"price":"$5.25400","currency":"USD"},{"qty":450,"price":"$4.94496","currency":"USD"},{"qty":950,"price":"$4.32684","currency":"USD"},{"qty":2400,"price":"$4.11050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/dd341c0f6d8db12322424d9acdd6dcc2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mated stacking height for FX10A-140P/14-SV(71)?","answer":"The mated stacking height is 4 mm when mated with the matching FX10 receptacle."},{"question":"Is FX10A-140P/14-SV(71) RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"Does FX10A-140P/14-SV(71) include a ground plate?","answer":"Yes, the header includes a ground plate, along with a board guide and solder retention features."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX10A-140P-14-SV~171~2","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-SV~171~2 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}}