{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40TC(4.0)-20DS-0.4V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40TC~14.0~2-20DS-0.4V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~14.0~2-20DS-0.4V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC(4.0)-20DS-0.4V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40T series receptacle, center strip contacts, 0.016\" (0.40mm) pitch, 20 positions, 2 rows, 4mm mated stack height, surface mount, gold-plated contacts, Tape & Reel.","salesMarkdown":"## Board-to-Board Mezzanine Receptacle, 0.40mm Pitch, 20 Positions The Hirose DF40TC(4.0)-20DS-0.4V(51) is a 20-position receptacle from the DF40T series, designed for board-to-board mezzanine stacking. It uses a 0.016\" (0.40mm) pitch dual-row layout with center strip contacts, and mates with the corresponding DF40T series headers to achieve a 4mm mated stack height. The 0.40mm pitch drives the PCB footprint — the tight spacing demands precise solder paste deposition and a controlled impedance layout for high-speed signals. The 4mm stack height is fixed by the mating pair; verify the header part number from the DF40T series to confirm the z-height matches your board spacing budget. ## SMT Assembly and Retention Features Surface-mount termination with Pick and Place and Solder Retention features built into the package. Supplied in Tape & Reel packaging for high-volume pick-and-place lines.","metaTitle":"Hirose DF40TC(4.0)-20DS-0.4V(51) Receptacle, 0.40mm Pitch","metaDescription":"Hirose DF40TC(4.0)-20DS-0.4V(51) receptacle, 0.40mm pitch, 20 positions, 4mm stack height. Gold-plated center strip contacts, SMT.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Board-to-Board Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.016\\\" (0.40mm)","Series":"DF40T","Package":"Tape & Reel (TR)","Features":"Pick and Place, Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Receptacle, Center Strip Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.154\\\" (3.90mm)","Number of Positions":"20","Mated Stacking Heights":"4mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5605","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ee353916a52fdc0d2aa13cbbf97c384a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pitch of DF40TC(4.0)-20DS-0.4V(51)?","answer":"The pitch is 0.016\" (0.40mm), dual-row, which sets the board footprint density and the matching header's contact spacing."},{"question":"What is the stack height of DF40TC(4.0)-20DS-0.4V(51)?","answer":"This is the fixed z-height for the board-to-board mezzanine pair."},{"question":"Is DF40TC(4.0)-20DS-0.4V(51) compatible with DF40C series headers?","answer":"The DF40TC(4.0)-20DS-0.4V(51) is part of the DF40T series, not the DF40C series. Mating compatibility requires a DF40T series header to achieve the specified 4mm stack height and contact alignment. The DF40C series uses a different mechanical envelope and is not a direct mate."},{"question":"Where to buy DF40TC(4.0)-20DS-0.4V(51) available via RFQ confirmation?","answer":"This part is sourced to order against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~14.0~2-20DS-0.4V~151~2","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/DF40TC~14.0~2-20DS-0.4V~151~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}