{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40HC(3.0)-50DS-0.4V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40HC~13.0~2-50DS-0.4V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40HC~13.0~2-50DS-0.4V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40HC(3.0)-50DS-0.4V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40 series receptacle, center strip contacts, 50 positions, 2 rows, 0.016\" (0.40mm) pitch, surface mount, gold contact finish, 0.114\" (2.90mm) height above board, 3mm mated stacking height.","salesMarkdown":"## 0.40mm Pitch Mezzanine Receptacle for Tight Stack Heights The Hirose DF40HC(3.0)-50DS-0.4V(51) is a 50-position receptacle from the DF40 series, designed for board-to-board mezzanine stacking. It uses a 0.016\" (0.40mm) pitch in a 2-row, center strip contact layout — the tight pitch keeps the board footprint compact, but it also sets the trace/space rules for the PCB layout: you need a fabricator capable of routing between 0.40mm-pitch pads. The connector is surface-mount only, so it feeds the pick-and-place line from Tape & Reel packaging without a secondary through-hole step. The mated stacking height is 3mm, with the receptacle sitting 0.114\" (2.90mm) above the board. That 3mm gap is the z-height budget for the mezzanine pair — the matching plug (DF40 series header, same pitch) brings the total stack to exactly 3mm. For a board-stacking engineer, this means the connector defines the board-to-board spacing; no standoffs or additional hardware needed if the mating header is the correct height variant. ## Gold Flash Plating — Fixed-Stack Duty, Not Field-Service The contacts are gold-plated, with a contact finish thickness of 2.00µin (0.051µm). The DF40HC(3.0)-50DS-0.4V(51) shares its 0.40mm pitch, 2-row layout, 3mm stacking height, and gold contact finish with the 44-position DF40HC(3.0)-44DS-0.4V(51) and the 60-position DF40HC(3.0)-60DS-0.4V(51). If your BOM calls for 50 signal lines, this is the exact match; if you need fewer or more, the 44- and 60-position siblings use the same pad pitch and stack height, so the layout rules carry over.","metaTitle":"Hirose DF40HC(3.0)-50DS-0.4V(51), 0.40mm Pitch","metaDescription":"Hirose DF40 series receptacle, 50 positions, 0.40mm pitch, 2-row SMT, 3mm stacking height. Gold contacts. Active, RoHS. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"DF40","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.016\\\" (0.40mm)","Series":"DF40","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"-","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":"0.114\\\" (2.90mm)","Base Product Number":"DF40H","Number of Positions":"50","Mated Stacking Heights":"3mm","Contact Finish Thickness":"2.00µin (0.051µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3900","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.39000","currency":"USD"},{"qty":10,"price":"$1.21000","currency":"USD"},{"qty":25,"price":"$1.15880","currency":"USD"},{"qty":50,"price":"$1.13320","currency":"USD"},{"qty":100,"price":"$1.08170","currency":"USD"},{"qty":250,"price":"$0.97868","currency":"USD"},{"qty":500,"price":"$0.90142","currency":"USD"},{"qty":1000,"price":"$0.77265","currency":"USD"},{"qty":3000,"price":"$0.72114","currency":"USD"},{"qty":6000,"price":"$0.68508","currency":"USD"},{"qty":9000,"price":"$0.66963","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/aec32b0d4a5f742c03de5786d68c7607.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mated stacking height of DF40HC(3.0)-50DS-0.4V(51)?","answer":"The mated stacking height is 3mm. The receptacle itself sits 0.114\" (2.90mm) above the board; the mating DF40 series header brings the total stack to 3mm."},{"question":"What is the pitch and number of positions for DF40HC(3.0)-50DS-0.4V(51)?","answer":"The pitch is 0.016\" (0.40mm) and the connector has 50 positions arranged in 2 rows."},{"question":"Is DF40HC(3.0)-50DS-0.4V(51) RoHS compliant?","answer":"Yes, it is RoHS compliant."},{"question":"What is the contact finish thickness on DF40HC(3.0)-50DS-0.4V(51)?","answer":"The contact finish thickness is 2.00µin (0.051µm) of gold."},{"question":"Are there equivalent parts to DF40HC(3.0)-50DS-0.4V(51) with the same footprint?","answer":"The 44-position DF40HC(3.0)-44DS-0.4V(51) and 60-position DF40HC(3.0)-60DS-0.4V(51) share the same 0.40mm pitch, 2-row layout, 3mm stacking height, and gold finish. The footprint length scales with the position count, so the pad pitch and stack height are identical — only the number of circuits changes."},{"question":"Where can I buy DF40HC(3.0)-50DS-0.4V(51) with reliable stock?","answer":"This part is active and 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/DF40HC~13.0~2-50DS-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/DF40HC~13.0~2-50DS-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":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}