{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40C(2.0)-40DS-0.4V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40C~12.0~2-40DS-0.4V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40C~12.0~2-40DS-0.4V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40C(2.0)-40DS-0.4V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40 series, DF40C(2.0)-40DS-0.4V(51), Receptacle, Center Strip Contacts, 40 positions, 2 rows, 0.016\" (0.40mm) pitch, Surface Mount, Gold contact finish, 2.00µin plating, 2mm mated stacking height.","salesMarkdown":"## Board-to-Board Mezzanine Fit: 0.40mm Pitch, 40 Positions, 2mm Stack The Hirose DF40C(2.0)-40DS-0.4V(51) is a 40-position receptacle from the DF40 series, designed for board-to-board mezzanine interconnects where board spacing is tight. The 0.016\" (0.40mm) pitch on a dual-row layout packs 40 circuits into a compact footprint — that pitch drives the PCB routing density and rules out standard 0.050\" or 0.100\" pitch layouts. ## Position Count vs Siblings: 30, 40, 50, 60 Within the DF40C(2.0) sub-family, the 40-position receptacle shares the same 0.016\" (0.40mm) pitch, 2mm mated stacking height, dual-row layout, and 2.00µin gold contact finish with the 30-position DF40C(2.0)-30DS-0.4V(51) and the 50-position DF40C(2.0)-50DS-0.4V(51). The only variable is position count — match the exact circuit count on your board layout. Surface-mount termination on a dual-row receptacle.","metaTitle":"Hirose DF40C(2.0)-40DS-0.4V(51) Receptacle, 0.40mm Pitch","metaDescription":"Hirose DF40C(2.0)-40DS-0.4V(51) 40-position receptacle, 0.40mm pitch, 2mm stacking height, gold contacts. Active production, RoHS compliant.","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":"0.077\\\" (1.95mm)","Base Product Number":"DF40C","Number of Positions":"40","Mated Stacking Heights":"2mm","Contact Finish Thickness":"2.00µin (0.051µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2300","priceTiers":[{"qty":1,"price":"$1.23000","currency":"USD"},{"qty":10,"price":"$1.03900","currency":"USD"},{"qty":25,"price":"$0.99680","currency":"USD"},{"qty":50,"price":"$0.97560","currency":"USD"},{"qty":100,"price":"$0.93320","currency":"USD"},{"qty":250,"price":"$0.84840","currency":"USD"},{"qty":500,"price":"$0.76356","currency":"USD"},{"qty":1000,"price":"$0.67872","currency":"USD"},{"qty":4000,"price":"$0.61509","currency":"USD"},{"qty":8000,"price":"$0.56419","currency":"USD"},{"qty":12000,"price":"$0.55146","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/aec32b0d4a5f742c03de5786d68c7607.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF40C(2.0)-40DS-0.4V(51)/alternatives.json"},"ai":{"faq":[{"question":"What is the mated stacking height of the DF40C(2.0)-40DS-0.4V(51)?","answer":"The mated stacking height is 2mm, which sets the clearance between parallel boards in a mezzanine stack-up."},{"question":"What is the compatible header for the DF40C(2.0)-40DS-0.4V(51)?","answer":"The DF40C(2.0)-40DS-0.4V(51) is a receptacle from the Hirose DF40 series and mates with the matching DF40 series header of the same 40-position count and 0.40mm pitch. Confirm the mating header part number against your board layout."},{"question":"Where can I buy DF40C(2.0)-40DS-0.4V(51)?","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/DF40C~12.0~2-40DS-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/DF40C~12.0~2-40DS-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}}