{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40TC-40DP-0.4V(58)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40TC-40DP-0.4V~158~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC-40DP-0.4V~158~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC-40DP-0.4V(58)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40T series header, outer shroud contacts, 0.016\" (0.40mm) pitch, 40 positions, 2 rows, 0.045\" (1.14mm) height above board, gold contacts, surface mount, tape and reel.","salesMarkdown":"## Hirose DF40TC-40DP-0.4V(58) — 0.40 mm Pitch, 40-Position Mezzanine Header The Hirose DF40TC-40DP-0.4V(58) is a 40-position, 2-row header from the DF40T series of board-to-board mezzanine connectors. It uses a 0.016\" (0.40mm) pitch and stands 0.045\" (1.14mm) above the board after soldering, making it suitable for ultra-compact, low-profile stacking applications in portable electronics, wearables, and handheld devices where z-height is at a premium. The connector is a surface-mount header with outer shroud contacts — this is the plug side of the mating pair. The connector is ROHS3 compliant. ## 40 Positions vs 30 and 50 — Choosing the Right Circuit Count The DF40T series offers this 40-position header alongside 30-position (DF40TC-30DP-0.4V(58)) and 50-position (DF40TC-50DP-0.4V(51) or DF40TC-50DP-0.4V(58)) siblings, all sharing the same 0.016\" (0.40mm) pitch, 0.045\" (1.14mm) height, and gold flash plating. Because the footprint, stack height, and contact finish are identical across these three variants, a board layout designed for one can accommodate the others with only a pad-count change — useful if the design needs to scale signal count without a board respin.","metaTitle":"Hirose DF40TC-40DP-0.4V(58) Header, 0.40mm Pitch, 40 Pos","metaDescription":"Hirose DF40TC-40DP-0.4V(58) 0.40mm pitch header, 40 positions, 1.14mm stack height, gold contacts, SMT. Active production, ROHS3. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":"DF40T","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":"DF40T","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Pick and Place, Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Header, Outer Shroud Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.045\\\" (1.14mm)","Number of Positions":"40","Mated Stacking Heights":"-","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3600","priceTiers":[{"qty":1,"price":"$1.36000","currency":"USD"},{"qty":10,"price":"$1.18700","currency":"USD"},{"qty":25,"price":"$1.13640","currency":"USD"},{"qty":50,"price":"$1.11100","currency":"USD"},{"qty":100,"price":"$1.06050","currency":"USD"},{"qty":250,"price":"$0.95952","currency":"USD"},{"qty":500,"price":"$0.88376","currency":"USD"},{"qty":1000,"price":"$0.75750","currency":"USD"},{"qty":2000,"price":"$0.73225","currency":"USD"},{"qty":3000,"price":"$0.70700","currency":"USD"},{"qty":5000,"price":"$0.67165","currency":"USD"},{"qty":10000,"price":"$0.65650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ee353916a52fdc0d2aa13cbbf97c384a.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC-40DP-0.4V(58)/alternatives.json"},"ai":{"faq":[{"question":"What receptacle mates with DF40TC-40DP-0.4V(58)?","answer":"Both halves must be from the same DF40T series to ensure correct pitch, stack height, and contact alignment."},{"question":"Is DF40TC-40DP-0.4V(58) RoHS compliant?","answer":"Yes, the DF40TC-40DP-0.4V(58) is ROHS3 compliant per the listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC-40DP-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-40DP-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}}