{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF37NB-70DS-0.4V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF37NB-70DS-0.4V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF37NB-70DS-0.4V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF37NB-70DS-0.4V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF37 series receptacle, 70 positions, 0.40mm pitch, 2 rows, gold contact finish, surface mount, 0.97mm above board, solder retention.","salesMarkdown":"The Hirose DF37NB-70DS-0.4V(51) is a 70-position receptacle from the DF37 series, using center strip contacts on a 0.40mm pitch across two rows. ## What the 0.40mm pitch and 70 positions mean for your board The 0.40mm pitch is the tightest in the DF37 line — it drives the PCB fab capability needed: standard 0.5mm-pitch routing rules don't apply here. You'll need controlled impedance traces and via-in-pad or microvia escape routing for the inner rows. The 70 positions make this the highest circuit-count member of the DF37 series; against the 50-position DF37NB-50DS-0.4V(53) or the 40-position DF37NB-40DS-0.4V(51), the only meaningful difference is position count. Pitch, height, contact finish, and mounting are identical across all three, so the selection comes down to matching the exact circuit count on your BOM line. ## Mating and stacking The mated stack height of 0.98mm means the board-to-board gap is fixed at just under a millimeter; there's no adjustment. The SMT pads and solder retention features are designed for standard reflow profiles, and the gold-on-gold contact interface keeps resistance stable through the rated mating cycles. The connector is keyed by its center strip contact geometry — it only mates one way, so you won't reverse the stack. It's RoHS Compliant per, so it meets the material restrictions for EU-market equipment.","metaTitle":"Hirose DF37NB-70DS-0.4V(51) 70-Position 0.40mm Pitch","metaDescription":"Hirose DF37 series receptacle, 70 positions, 0.40mm pitch, 0.97mm above board. Gold-plated center strip contacts, SMT with solder retention.","metaKeywords":null},"attributes":{"series":"DF37","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":"DF37","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"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":"0.038\\\" (0.97mm)","Base Product Number":"DF37N","Number of Positions":"70","Mated Stacking Heights":"0.98mm","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9900","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.99000","currency":"USD"},{"qty":10,"price":"$1.73300","currency":"USD"},{"qty":25,"price":"$1.65880","currency":"USD"},{"qty":50,"price":"$1.62200","currency":"USD"},{"qty":100,"price":"$1.54830","currency":"USD"},{"qty":250,"price":"$1.40088","currency":"USD"},{"qty":500,"price":"$1.29028","currency":"USD"},{"qty":1000,"price":"$1.10595","currency":"USD"},{"qty":2500,"price":"$1.03222","currency":"USD"},{"qty":8000,"price":"$0.95849","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/3aa4291611ad64fcbe6042571475da76.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mating connector for DF37NB-70DS-0.4V(51)?","answer":"The mating half is the corresponding DF37 series plug header with the same 0.40mm pitch and 70-position count. It mates at a 0.98mm stack height."},{"question":"What is the stacking height of DF37NB-70DS-0.4V(51)?","answer":"The mated stacking height is 0.98mm, with the receptacle sitting 0.97mm above the board surface."},{"question":"Where can I buy DF37NB-70DS-0.4V(51)?","answer":"Sourced to order against your BOM quantity. Availability and pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF37NB-70DS-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/DF37NB-70DS-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":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}