{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12A-40DS-0.5V(81)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12A-40DS-0.5V~181~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12A-40DS-0.5V~181~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12A-40DS-0.5V(81)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 series, 40-position receptacle, center strip contacts, 0.50mm pitch, 2 rows, surface mount, gold plating, board guide, mated stack heights 3.5mm/4mm/5mm.","salesMarkdown":"The Hirose DF12A-40DS-0.5V(81) is a 40-position receptacle from the DF12 series, designed for board-to-board mezzanine stacking. A built-in board guide helps align the receptacle with its matching header during assembly, reducing the risk of stubbing the pins on the plastic housing. ## Stack Height Range and Board Spacing This receptacle supports three mated stack heights: 3.5 mm, 4 mm, and 5 mm. The height above the board for the receptacle alone is 2.70 mm. The stack height is set by the mating header variant, not by this part — so the engineer selects the header that gives the required z-gap between the two PCBs. The DF12A-40DS-0.5V(81) is officially obsolete. There is no listed direct replacement from Hirose in the evidence. No pin-compatible equivalent from another manufacturer is on record.","metaTitle":"Hirose DF12A-40DS-0.5V(81) 40-Position 0.50mm Receptacle","metaDescription":"Hirose DF12A-40DS-0.5V(81) 40-position, 2-row receptacle, 0.50mm pitch, gold contacts, SMT. Obsolete — sourced to order against RFQ.","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","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":"$1.8300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/801352e576480b4c19254a5dc0f8f8a7.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF12A-40DS-0.5V(81)/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of the DF12A-40DS-0.5V(81)?","answer":"The DF12A-40DS-0.5V(81) has a 0.50 mm pitch, which is the tightest common mezzanine pitch and drives the board routing density and footprint layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12A-40DS-0.5V~181~2","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/DF12A-40DS-0.5V~181~2 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}}