{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40TC(4.0)-40DS-0.4V(58)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40TC~14.0~2-40DS-0.4V~158~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~14.0~2-40DS-0.4V~158~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC(4.0)-40DS-0.4V(58)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40T series receptacle, center strip contacts, 0.016\" (0.40mm) pitch, 40 positions, 2 rows, gold contact finish, surface mount, 4mm mated stacking height, tape and reel.","salesMarkdown":"## Board-to-Board Stacking at 0.40mm Pitch The Hirose DF40TC(4.0)-40DS-0.4V(58) is a 40-position receptacle from the DF40T series, built for fine-pitch board-to-board stacking. The mated stacking height is 4mm, set by the (4.0) in the order code, which means the matching header must carry the same stack-height suffix to land at the correct z-height. ## SMT Assembly and Retention The 0.40mm pitch means the solder paste stencil aperture and reflow profile need to be dialed in for fine-pitch parts; tombstoning or bridging is a risk if the pad design doesn't match the Hirose recommended footprint. RoHS compliant per the listing. The DF40T series is Hirose-proprietary in footprint and stack height.","metaTitle":"Hirose DF40TC(4.0)-40DS-0.4V(58), 0.4mm Pitch","metaDescription":"Hirose DF40T series receptacle, 40 positions, 0.016\" (0.40mm) pitch, 4mm mated stack height. Gold contacts, SMT, active production.","metaKeywords":null},"attributes":{"series":"DF40T","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":"DF40T","Package":"Tape & Reel (TR) Cut Tape (CT)","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":"40","Mated Stacking Heights":"4mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3200","priceTiers":[{"qty":1,"price":"$2.32000","currency":"USD"},{"qty":10,"price":"$2.01700","currency":"USD"},{"qty":25,"price":"$1.93160","currency":"USD"},{"qty":50,"price":"$1.88880","currency":"USD"},{"qty":100,"price":"$1.80280","currency":"USD"},{"qty":250,"price":"$1.63116","currency":"USD"},{"qty":500,"price":"$1.50238","currency":"USD"},{"qty":1000,"price":"$1.27463","currency":"USD"},{"qty":2000,"price":"$1.23214","currency":"USD"},{"qty":3000,"price":"$1.18965","currency":"USD"},{"qty":5000,"price":"$1.13017","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ee353916a52fdc0d2aa13cbbf97c384a.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC(4.0)-40DS-0.4V(58)/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy DF40TC(4.0)-40DS-0.4V(58)?","answer":"Submit a request for quote to confirm current availability and pricing — both are confirmed at quote time, not on this page."},{"question":"What is the mated stacking height for DF40TC(4.0)-40DS-0.4V(58)?","answer":"The mated stacking height is 4mm, set by the (4.0) in the order code. The matching header must carry the same stack-height suffix to achieve the correct z-height between boards."},{"question":"Is DF40TC(4.0)-40DS-0.4V(58) RoHS compliant?","answer":"Yes, it is listed as RoHS compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~14.0~2-40DS-0.4V~158~2","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~14.0~2-40DS-0.4V~158~2 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}}