{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40TC(3.5)-30DS-0.4V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40TC~13.5~2-30DS-0.4V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~13.5~2-30DS-0.4V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC(3.5)-30DS-0.4V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40T series receptacle, 30 positions, 0.016\" (0.40mm) pitch, dual-row, surface mount, gold contact finish, 3.5mm mated stacking height, tape and reel.","salesMarkdown":"The Hirose DF40TC(3.5)-30DS-0.4V(51) is a 30-position receptacle with center strip contacts from the DF40T series, built for board-to-board mezzanine stacking at a fixed 3.5mm mated height. ## 0.40mm Pitch and the Board Footprint At 0.40mm pitch, this is a fine-pitch connector — the board layout needs matched trace widths and controlled impedance if the signals run at any speed. The 30 positions in two rows mean the PCB footprint is narrow but long; the pad pattern must align with the Hirose recommended land pattern to avoid solder bridging. The surface-mount termination and solder retention features (Pick and Place pad) let it run through a standard reflow oven without shifting. ## Stacking Height and Mating Partner The 3.5mm mated stacking height is baked into the part number — the DF40TC(3.5) designation means the receptacle is designed to mate with a DF40 series header of the same height code to achieve that exact board-to-board gap. The mating half is a DF40C header (the male pin side) with the corresponding 3.5mm stack height. The 30-position count must match on both sides; the header is available in the same DF40T series with the same 0.40mm pitch. ## Comparing the 3.5mm and 3.0mm Stack Options The DF40TC(3.0)-30DS-0.4V(58) is the same 30-position, 0.40mm-pitch receptacle but mates at 2.9mm instead of 3.5mm — a 0.6mm difference in board-to-board gap. If your mezzanine height budget is 2.9mm, the 3.0 version fits; if you need 3.5mm, this is the one. The contact plating and dual-row layout are identical, so the only decision driver is the z-height clearance under the top board.","metaTitle":"Hirose DF40TC(3.5)-30DS-0.4V(51), 30-Pos 0.40mm Receptacle","metaDescription":"Hirose DF40TC(3.5)-30DS-0.4V(51) receptacle, 30 positions, 0.40mm pitch, 3.5mm stacking height. Gold contacts, SMT, active production. Sourced to order.","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":"Receptacle, Center Strip Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.134\\\" (3.40mm)","Base Product Number":"DF40T","Number of Positions":"30","Mated Stacking Heights":"3.5mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.07000","currency":"USD"},{"qty":10,"price":"$0.94400","currency":"USD"},{"qty":25,"price":"$0.88800","currency":"USD"},{"qty":50,"price":"$0.85100","currency":"USD"},{"qty":100,"price":"$0.81400","currency":"USD"},{"qty":250,"price":"$0.74000","currency":"USD"},{"qty":500,"price":"$0.66600","currency":"USD"},{"qty":1000,"price":"$0.59200","currency":"USD"},{"qty":2000,"price":"$0.64575","currency":"USD"},{"qty":4000,"price":"$0.62423","currency":"USD"},{"qty":6000,"price":"$0.60270","currency":"USD"},{"qty":10000,"price":"$0.57400","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ee353916a52fdc0d2aa13cbbf97c384a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the stacking height of DF40TC(3.5)-30DS-0.4V(51)?","answer":"The mated stacking height is 3.5mm. This is fixed by the (3.5) suffix in the part number and requires a matching DF40C header with the same height code."},{"question":"Does DF40TC(3.5)-30DS-0.4V(51) mate with DF40C headers?","answer":"Yes, it mates with the corresponding DF40C series header of the same 3.5mm stack height and 30-position count. The 0.40mm pitch and dual-row configuration are common across the DF40T/DF40C mating pair."},{"question":"Where can I buy DF40TC(3.5)-30DS-0.4V(51)?","answer":"This part is active and sourced to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~13.5~2-30DS-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/DF40TC~13.5~2-30DS-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}}