{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12D(4.0)-50DP-0.5V(81)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12D~14.0~2-50DP-0.5V~181~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12D~14.0~2-50DP-0.5V~181~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12D(4.0)-50DP-0.5V(81)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 series, 50-position 0.50mm pitch SMT header, outer shroud contacts, dual-row, 4mm stacking height, gold-plated contacts, board guide feature, Tape & Reel packaging.","salesMarkdown":"The Hirose DF12D(4.0)-50DP-0.5V(81) is a 50-position, 0.50 mm pitch SMT header from the DF12 series, designed for board-to-board mezzanine stacking. ## Mating and Stacking — What Fits The stacking height is fixed at 4 mm — the (4.0) in the order code denotes that height. If your design needs a different board-to-board gap, the DF12 series includes variants with other stacking heights, but this specific member is locked to 4 mm. Surface-mount termination, dual-row layout, with the contacts arranged at 0.50 mm pitch. The 0.50 mm pitch means the PCB footprint needs tight tolerances — a standard 0.50 mm pitch land pattern with solder mask defined pads. The board guide adds mechanical alignment during reflow, reducing tombstoning risk on the thin contacts.","metaTitle":"Hirose DF12D(4.0)-50DP-0.5V(81) 50-Pos 0.50mm Header","metaDescription":"Hirose DF12D(4.0)-50DP-0.5V(81) 50-position 0.50mm pitch SMT header, 4mm stacking height. Obsolete — sourced to order against RFQ. Gold contacts, board guide.","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":"0.130\\\" (3.30mm)","Number of Positions":"50","Mated Stacking Heights":"4mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/801352e576480b4c19254a5dc0f8f8a7.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF12D(4.0)-50DP-0.5V(81)/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for DF12D(4.0)-50DP-0.5V(81)?","answer":"Any replacement would need to match the 0.50 mm pitch, 50 positions, 4 mm stacking height, and SMT outer shroud contact style. A direct pin-compatible alternative from the same DF12 series may exist, but it must be verified against the board footprint and stacking height before substitution."},{"question":"What is the stacking height of the Hirose DF12D(4.0)-50DP-0.5V(81)?","answer":"The mated stacking height is 4 mm, as indicated by the (4.0) in the order code. This is a fixed height — the header is not adjustable to other board-to-board gaps within this same order code."},{"question":"Where can I buy DF12D(4.0)-50DP-0.5V(81)?","answer":"This obsolete part is sourced to order against your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12D~14.0~2-50DP-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~14.0~2-50DP-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}}