{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40TC(4.0)-30DS-0.4V(58)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40TC~14.0~2-30DS-0.4V~158~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~14.0~2-30DS-0.4V~158~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC(4.0)-30DS-0.4V(58)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40T series receptacle, 30 positions, 0.40mm pitch, dual-row, SMT, gold-plated contacts, 4mm mated stacking height, solder retention, pick and place.","salesMarkdown":"## 0.40mm Pitch Mezzanine Receptacle for 4mm Stack Height The Hirose DF40TC(4.0)-30DS-0.4V(58) is a 30-position receptacle from the DF40T series, designed as the bottom-side mezzanine connector in a board-to-board stack. It uses a 0.016\" (0.40mm) pitch dual-row layout with center strip contacts, and its key dimensional spec is the 4mm mated stacking height — that's the gap between the two PCBs when mated with the matching DF40T header. At 0.40mm pitch, the footprint demands a PCB capable of routing traces between pads — standard 0.5mm-pitch processes won't clear the escape routing without micro-vias or tighter design rules. The dual-row, 30-position layout means the connector body is roughly 7.5mm long, so the keep-out zone on the board is compact. The SMT solder retention pads help hold the part during reflow and add some shear strength against the mating force of the header. ## Position Count vs. Siblings The 30-position DF40TC(4.0)-30DS-0.4V(58) sits between the 20-position DF40TC(4.0)-20DS-0.4V(58) and the 40-position DF40TC(4.0)-40DS-0.4V(58) in the same 4mm stack-height variant. ## Stack Height Variant: 4.0 vs. 3.5 The DF40TC(4.0)-30DS-0.4V(58) is the 4mm stack-height version. The sibling DF40TC(3.5)-30DS-0.4V(58) uses a 0.134\" (3.40mm) height and mates to a different header to achieve a 3.5mm stack. If your board-to-board z-budget is 4mm, this is the correct receptacle; the 3.5mm version won't reach the header contacts in a 4mm stack. The pitch, position count, and plating are identical.","metaTitle":"Hirose DF40TC(4.0)-30DS-0.4V(58) 30-Position 0.40mm Pitch","metaDescription":"Hirose DF40TC(4.0)-30DS-0.4V(58) 30-position receptacle, 0.40mm pitch, 4mm mated stack height. Gold-plated contacts, SMT with solder retention.","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":"30","Mated Stacking Heights":"4mm","Contact Finish Thickness":"1.97µin (0.050µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9400","priceTiers":[{"qty":1,"price":"$1.94000","currency":"USD"},{"qty":10,"price":"$1.68500","currency":"USD"},{"qty":25,"price":"$1.61360","currency":"USD"},{"qty":50,"price":"$1.57760","currency":"USD"},{"qty":100,"price":"$1.50590","currency":"USD"},{"qty":250,"price":"$1.36248","currency":"USD"},{"qty":500,"price":"$1.25492","currency":"USD"},{"qty":1000,"price":"$1.06050","currency":"USD"},{"qty":2000,"price":"$1.02515","currency":"USD"},{"qty":3000,"price":"$0.98980","currency":"USD"},{"qty":5000,"price":"$0.94031","currency":"USD"},{"qty":10000,"price":"$0.91910","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ee353916a52fdc0d2aa13cbbf97c384a.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF40TC(4.0)-30DS-0.4V(58)/alternatives.json"},"ai":{"faq":[{"question":"What is the mated stacking height of Hirose DF40TC(4.0)-30DS-0.4V(58)?","answer":"The mated stacking height is 4mm. This is the distance between the two PCBs when the receptacle is mated with the matching DF40T header. The part number includes (4.0) to indicate this stack height."},{"question":"Where can I buy DF40TC(4.0)-30DS-0.4V(58) and what is the price?","answer":"This part is active and quoted to order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40TC~14.0~2-30DS-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~14.0~2-30DS-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}}