{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40JC-70DS-0.4V(53)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40JC-70DS-0.4V~153~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40JC-70DS-0.4V~153~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40JC-70DS-0.4V(53)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40 series receptacle, center strip contacts, 70 positions, 0.016\" (0.40mm) pitch, 2 rows, surface mount, gold contacts, 2.00µin plating, 2mm mated stacking height.","salesMarkdown":"The Hirose DF40JC-70DS-0.4V(53) is a 70-position receptacle from the DF40 series, designed as a board-to-board mezzanine interconnect. The 2 mm mated stacking height defines the z-axis clearance between parallel PCBs — a fixed dimension that sets the board spacing for the entire assembly. Any mismatch in the header's height spec shifts the stack and risks open contacts or mechanical interference. ## Contact Plating — Flash Gold Limits Field Reconnection The contacts carry 2.00 µin of gold over the base metal — a flash plating that provides corrosion protection for the first few mating cycles but wears through quickly under repeated disconnect/reconnect. This connector is designed for a one-time assembly or occasional rework, not for a field-service cable that gets unplugged regularly. For applications needing frequent mating, a thicker gold option in the DF40 family would be the correct choice. ## Position Count Comparison — 70 vs 60 vs 90 Within the same DF40JC sub-series, the 70-position DF40JC-70DS-0.4V(53) sits between the 60-position DF40JC-60DS-0.4V(53) and the 90-position DF40JC-90DS-0.4V(53). All three share the identical 0.40 mm pitch, 2 mm stacking height, dual-row layout, and gold flash plating. A 60-position variant leaves ten lines unterminated; a 90-position variant leaves twenty pads unpopulated. No other functional difference exists between these three. No official second-source cross-reference exists from another manufacturer; the Hirose DF40 series is proprietary in its footprint and stacking height.","metaTitle":"Hirose DF40JC-70DS-0.4V(53) 70-Pin 0.4mm Pitch Receptacle","metaDescription":"Hirose DF40 series 70-position receptacle, 0.40mm pitch, 2mm stacking height. Gold-plated contacts, SMT. Active, RoHS. Sourced to order.","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":"0.057\\\" (1.45mm)","Base Product Number":"DF40J","Number of Positions":"70","Mated Stacking Heights":"2mm","Contact Finish Thickness":"2.00µin (0.051µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.3100","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.31000","currency":"USD"},{"qty":10,"price":"$9.28300","currency":"USD"},{"qty":25,"price":"$8.74440","currency":"USD"},{"qty":50,"price":"$8.52040","currency":"USD"},{"qty":100,"price":"$8.29610","currency":"USD"},{"qty":200,"price":"$8.62470","currency":"USD"},{"qty":400,"price":"$7.69230","currency":"USD"},{"qty":600,"price":"$7.22610","currency":"USD"},{"qty":1000,"price":"$6.38694","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/aec32b0d4a5f742c03de5786d68c7607.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mating height for DF40JC-70DS-0.4V(53)?","answer":"The mated stacking height is 2 mm, measured from the bottom of the receptacle to the top of the mating header."},{"question":"Is DF40JC-70DS-0.4V(53) RoHS compliant?","answer":"Yes, the manufacturer lists it as RoHS Compliant."},{"question":"What is the pitch of DF40JC-70DS-0.4V(53)?","answer":"The contact pitch is 0.016\" (0.40 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40JC-70DS-0.4V~153~2","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/DF40JC-70DS-0.4V~153~2 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}}