{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX8C-140P-SV4(91)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"FX8C-140P-SV4~191~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX8C-140P-SV4~191~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/FX8C-140P-SV4(91)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose FunctionMax FX8C series header, outer shroud contacts, 140 positions, 2 rows, 0.024\" (0.60mm) pitch, 0.333\" (8.45mm) height above board, surface mount, gold contact finish, tube package.","salesMarkdown":"## 0.60mm Pitch Mezzanine Header for Dense Board Stacks It uses a 0.024\" (0.60mm) pitch — tight enough that the footprint looks like a BGA land pattern, not a traditional through-hole header. This variant sits at a 0.333\" (8.45mm) height above board, which mates with a receptacle at one of two stacking heights: 9mm or 14mm. That 9mm stack is common for sandwiching a mezzanine card between two larger PCBs where the air gap needs to stay under 10mm for thermal or enclosure reasons. The board guide feature (molded into the shroud) helps align the two halves during blind mating — useful when the connector is buried in a dense board stack where you can't see the pins engage. Surface-mount termination keeps the assembly reflow-friendly, but the 140 pins at 0.60mm pitch mean the solder paste stencil and reflow profile need to be dialed in for that fine-pitch joint. It is ROHS3 compliant, which covers the current EU exemption sunset.","metaTitle":"Hirose FX8C-140P-SV4(91) FunctionMax Header, 140 Pos","metaDescription":"Hirose FunctionMax FX8C-140P-SV4(91) header, 140 positions, 0.60mm pitch, 8.45mm height, SMT, gold contacts. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"FunctionMax™ FX8C","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.024\\\" (0.60mm)","Series":"FunctionMax™ FX8C","Package":"Tube","Features":"Board Guide","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":"0.333\\\" (8.45mm)","Base Product Number":"FX8","Number of Positions":"140","Mated Stacking Heights":"9mm, 14mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.1800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.18000","currency":"USD"},{"qty":10,"price":"$5.58900","currency":"USD"},{"qty":25,"price":"$5.27960","currency":"USD"},{"qty":50,"price":"$5.15100","currency":"USD"},{"qty":100,"price":"$4.89340","currency":"USD"},{"qty":250,"price":"$4.37836","currency":"USD"},{"qty":500,"price":"$4.12080","currency":"USD"},{"qty":1000,"price":"$3.60570","currency":"USD"},{"qty":2500,"price":"$3.42542","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/a5a70ed028094c8838edeb48b4262d48.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Will FX8C-140P-SV4(91) drop into a board designed for FX8C-140P-SV6(91)?","answer":"The board footprint is identical — same 0.60mm pitch, same 140 positions, same SMT pad layout. The difference is the height above board: 8.45mm for the SV4 versus 10.85mm for the SV6. The SV4 will not reach the mating receptacle if the stack height was set for the taller SV6. Verify your required mated stack height before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/FX8C-140P-SV4~191~2","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/FX8C-140P-SV4~191~2 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}}