{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12(4.0)-40DP-0.5V(86)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12~14.0~2-40DP-0.5V~186~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12~14.0~2-40DP-0.5V~186~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12(4.0)-40DP-0.5V(86)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 series header, outer shroud contacts, 40 positions, 2 rows, 0.020\" (0.50mm) pitch, surface mount, gold, 0.130\" (3.30mm) height above board, 4mm mated stacking height.","salesMarkdown":"## Board-to-Board Mezzanine Header for Tight Stack-Up The Hirose DF12(4.0)-40DP-0.5V(86) is a 40-position, dual-row header from the DF12 series, designed for parallel board stacking at a 4mm mated height. At 0.50mm pitch, the trace routing between pads is tight — you'll need controlled impedance design if running high-speed signals. The 40 positions in 2 rows give you 20 per row, which keeps the connector length manageable for a 0.50mm pitch part. The 4mm stacking height is the fixed z-axis gap between the two PCBs; your enclosure and component heights on the bottom board must clear that envelope. ## Obsolete — Sourcing the DF12(4.0)-40DP-0.5V(86) Now No direct replacement is listed in the DF12 series with the same 4mm stacking height and 40-position count at 0.50mm pitch. For a BOM that needs this exact fit, the only channel is the surplus and broker market — we source traceable, date-coded stock against an RFQ.","metaTitle":"Hirose DF12(4.0)-40DP-0.5V(86) 40-Pos 0.50mm Header","metaDescription":"Hirose DF12 series 40-position 0.50mm pitch SMT header, 4mm stacking height, gold-plated contacts.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Board-to-Board Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.020\\\" (0.50mm)","Series":"DF12","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":"Obsolete","lifecycle_stage":"unknown","Height Above Board":"0.130\\\" (3.30mm)","Number of Positions":"40","Mated Stacking Heights":"4mm","Contact Finish Thickness":"8.00µin (0.203µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/801352e576480b4c19254a5dc0f8f8a7.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF12(4.0)-40DP-0.5V(86)/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy DF12(4.0)-40DP-0.5V(86)?","answer":"We locate traceable, date-coded stock from our broker network and confirm availability and pricing at quote time. Submit an RFQ for your target quantity and we will source it."},{"question":"Is DF12(4.0)-40DP-0.5V(86) discontinued?","answer":"Yes, this part is officially obsolete. There is no direct replacement listed by Hirose with the same 4mm stacking height and 40-position 0.50mm pitch footprint."},{"question":"What is the stacking height of DF12(4.0)-40DP-0.5V(86)?","answer":"The mated stacking height is 4mm. The header sits 0.130\" (3.30mm) above the board surface before mating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12~14.0~2-40DP-0.5V~186~2","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/DF12~14.0~2-40DP-0.5V~186~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}