{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40HC(2.5)-20DS-0.4V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40HC~12.5~2-20DS-0.4V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40HC~12.5~2-20DS-0.4V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40HC(2.5)-20DS-0.4V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40 series receptacle, center strip contacts, 20 positions, 2 rows, 0.016\" (0.40mm) pitch, surface mount, gold contact finish, 2.00µin plating, 2.5mm mated stacking height.","salesMarkdown":"## Mezzanine Stacking Receptacle for Tight Z-Height Budgets The Hirose DF40HC(2.5)-20DS-0.4V(51) is a 20-position, dual-row receptacle from the DF40 series, designed for board-to-board mezzanine stacking with a fixed mated height of 2.5mm. The 0.016\" (0.40mm) pitch packs 20 positions into a compact footprint, making it a fit for space-constrained portable electronics, handheld devices, and internal module interconnects where the PCB stack height is tight. Gold-plated contacts with 2.00µin (0.051µm) finish on the mating surface handle the low-cycle mating typical of a one-time assembly — the plating is adequate for the few mate-unmate events during manufacturing and rework, not for repeated field service. ## 20 vs 50 vs 60 Positions — Same Footprint Class, Different Circuit Count The DF40HC(2.5)-20DS-0.4V(51) shares the same 0.016\" (0.40mm) pitch, 2.5mm stacking height, and dual-row layout with the DF40HC(2.5)-50DS-0.4V(51) and DF40HC(2.5)-60DS-0.4V(51). The difference is purely the position count — 20 circuits vs 50 circuits vs 60 circuits — which means the board footprint length scales with the number of positions while the z-height and pitch remain identical. Termination is surface mount — the contacts are reflow-soldered to the PCB pads. The 0.40mm pitch demands a precise solder paste stencil and a controlled reflow profile; the narrow pitch means the board layout must maintain tight tolerance on pad position and trace routing to avoid shorts.","metaTitle":"Hirose DF40HC(2.5)-20DS-0.4V(51) Receptacle, 20 Pos","metaDescription":"Hirose DF40 series receptacle, 20 positions, 0.40mm pitch, 2.5mm stacking height, gold contacts. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"DF40","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 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":"0.094\\\" (2.40mm)","Base Product Number":"DF40H","Number of Positions":"20","Mated Stacking Heights":"2.5mm","Contact Finish Thickness":"2.00µin (0.051µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2600","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.26000","currency":"USD"},{"qty":10,"price":"$1.06400","currency":"USD"},{"qty":25,"price":"$1.02080","currency":"USD"},{"qty":50,"price":"$0.99880","currency":"USD"},{"qty":100,"price":"$0.95550","currency":"USD"},{"qty":250,"price":"$0.86860","currency":"USD"},{"qty":500,"price":"$0.78174","currency":"USD"},{"qty":1000,"price":"$0.69488","currency":"USD"},{"qty":3000,"price":"$0.62973","currency":"USD"},{"qty":6000,"price":"$0.60802","currency":"USD"},{"qty":9000,"price":"$0.57762","currency":"USD"},{"qty":15000,"price":"$0.56459","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/aec32b0d4a5f742c03de5786d68c7607.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is DF40HC(2.5)-20DS-0.4V(51) RoHS compliant?","answer":"Yes, it is ROHS3 Compliant per the manufacturer's status."},{"question":"What is the exact stacking height of DF40HC(2.5)-20DS-0.4V(51)?","answer":"The mated stacking height is 2.5mm, as indicated by the (2.5) suffix in the order code and confirmed in the spec."},{"question":"Where can I buy DF40HC(2.5)-20DS-0.4V(51) available via RFQ confirmation?","answer":"This 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/DF40HC~12.5~2-20DS-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/DF40HC~12.5~2-20DS-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":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}