{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12D(3.5)-40DP-0.5V(81)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12D~13.5~2-40DP-0.5V~181~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12D~13.5~2-40DP-0.5V~181~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12D(3.5)-40DP-0.5V(81)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 series, DF12D(3.5)-40DP-0.5V(81), Header Outer Shroud Contacts, 0.020\" (0.50mm) Pitch, 40 Positions, 2 Rows, 0.110\" (2.80mm) Height Above Board, Surface Mount, Gold, Tape & Reel, Mated Stacking Heights 3.5mm","salesMarkdown":"## 3.5 mm stack height, 40 positions, 0.50 mm pitch The DF12D(3.5)-40DP-0.5V(81): This is a 40-position, 2-row header from the Hirose DF12 series, pitched at 0.50 mm and designed for a mated stacking height of 3.5 mm. Gold-plated contacts suit moderate mating-cycle duty in instrumentation or telecom line cards where the board stack is fixed after assembly. ## Obsolete — plan the BOM transition The DF12 series includes other stacking-height variants and position counts; a pin-compatible alternative within the same family may be available — confirm the footprint and stack height against the board layout before substituting. RoHS and REACH compliance documentation is provided by Hirose for this series; no UL or IEC listing exists for this specific order code.","metaTitle":"DF12D(3.5)-40DP-0.5V(81) – Hirose DF12 0.50mm Pitch 40-Pos","metaDescription":"Hirose DF12D(3.5)-40DP-0.5V(81) board-to-board header, 0.50mm pitch, 40 positions, 3.5mm stack height. Obsolete – sourced per 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":"Header, Outer Shroud Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Obsolete","lifecycle_stage":"unknown","Height Above Board":"0.110\\\" (2.80mm)","Number of Positions":"40","Mated Stacking Heights":"3.5mm","Contact Finish Thickness":"-"}},"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/DF12D(3.5)-40DP-0.5V(81)/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12D~13.5~2-40DP-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/DF12D~13.5~2-40DP-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}}