{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12B-40DS-0.5V(86)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12B-40DS-0.5V~186~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12B-40DS-0.5V~186~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12B-40DS-0.5V(86)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 Series, 40 Position, 2 Row, 0.020\" (0.50mm) Pitch, Receptacle, Center Strip Contacts, Surface Mount, Gold, 2.70mm Height Above Board.","salesMarkdown":"## Board-Stacking Interconnect: 0.50mm Pitch, 40 Positions The Hirose DF12B-40DS-0.5V(86) is a 40-position, 2-row receptacle from the DF12 series, designed for board-to-board mezzanine stacking at 0.50mm pitch. At 0.50mm pitch, routing two traces between pads is tight; a 4-layer board with microvias is typical for this density class. ## Lifecycle Status: Obsolete — Sourcing the DF12B-40DS-0.5V(86) The DF12B-40DS-0.5V(86) is officially marked as Obsolete. There is no documented replacement or cross-reference from Hirose in the evidence. Do not assume a parametric substitute from the DF12 series will drop into the same footprint without checking the pinout and stacking height compatibility. The two-row arrangement means 20 contacts per row, which keeps the connector body narrower than a single-row 40-position part would be. ## Mated Stacking Heights and Board Spacing The DF12B-40DS-0.5V(86) supports mated stacking heights of 3.5mm, 4mm, and 5mm. This means the same receptacle can be used in assemblies with different board-to-board gaps by selecting the appropriate mating header height. For a 3.5mm stack, the total z-height from the bottom of the receptacle PCB to the top of the mating header PCB is 3.5mm — tight enough for slim handheld devices or mezzanine cards in a compact enclosure.","metaTitle":"Hirose DF12B-40DS-0.5V(86) Receptacle, 0.50mm Pitch, 40 Pos","metaDescription":"Hirose DF12B-40DS-0.5V(86) 40-position 0.50mm pitch receptacle, center strip contacts. Obsolete. Sourced to order against RFQ. Gold contacts, 2.70mm height.","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":"Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Receptacle, Center Strip Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Obsolete","lifecycle_stage":"unknown","Height Above Board":"0.106\\\" (2.70mm)","Number of Positions":"40","Mated Stacking Heights":"3.5mm, 4mm, 5mm","Contact Finish Thickness":"8.00µin (0.203µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/801352e576480b4c19254a5dc0f8f8a7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DF12B-40DS-0.5V(86) obsolete?","answer":"Yes, the DF12B-40DS-0.5V(86) is officially marked as Obsolete. There is no documented replacement or cross-reference from Hirose in the available records."},{"question":"What is the pitch and number of positions of DF12B-40DS-0.5V(86)?","answer":"The DF12B-40DS-0.5V(86) has a pitch of 0.020\" (0.50mm) and 40 positions arranged in 2 rows."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12B-40DS-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/DF12B-40DS-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}}