{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12NC(4.0)-40DP-0.5V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12NC~14.0~2-40DP-0.5V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12NC~14.0~2-40DP-0.5V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12NC(4.0)-40DP-0.5V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 series header, outer shroud contacts, 40 positions, 2 rows, 0.020\" (0.50mm) pitch, surface mount, gold contact finish, 4mm mated stacking height.","salesMarkdown":"## 4mm Stack, 40 Circuits — DF12 Mezzanine Header The Hirose DF12NC(4.0)-40DP-0.5V(51) is a 40-position header from the DF12 series of board-to-board mezzanine connectors. ## 0.50mm Pitch and 4mm Stack — the Board Layout Numbers The 4mm mated stacking height is the critical z-height dimension: the space between the two parallel boards after mating is exactly 4mm, so the keep-out zone on both boards must clear that gap. The 0.130\" (3.30mm) height above the mounting board gives the clearance under the header on the bottom side. ## 40 Positions Against the 20 and 50 — Position Count Drives the BOM The DF12NC(4.0)-40DP-0.5V(51) carries 40 positions. The 50-position version (DF12NC(4.0)-50DP-0.5V(51)) adds solder retention features, which the 40-position lacks.","metaTitle":"Hirose DF12NC(4.0)-40DP-0.5V(51) Header, 40 Pos","metaDescription":"Hirose DF12 series header, 40 positions, 0.50mm pitch, 4mm stack height, SMT, gold contacts. Active production — sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":"DF12","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Board-to-Board Connectors","Mezzanine & Stacking Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Pitch":"0.020\\\" (0.50mm)","Series":"DF12","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"-","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":"0.130\\\" (3.30mm)","Base Product Number":"DF12N","Number of Positions":"40","Mated Stacking Heights":"4mm","Contact Finish Thickness":"8.00µin (0.203µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8300","priceTiers":[{"qty":1,"price":"$1.83000","currency":"USD"},{"qty":10,"price":"$1.59000","currency":"USD"},{"qty":25,"price":"$1.52240","currency":"USD"},{"qty":50,"price":"$1.48880","currency":"USD"},{"qty":100,"price":"$1.42110","currency":"USD"},{"qty":250,"price":"$1.28572","currency":"USD"},{"qty":500,"price":"$1.18422","currency":"USD"},{"qty":1000,"price":"$1.01505","currency":"USD"},{"qty":2000,"price":"$0.98122","currency":"USD"},{"qty":3000,"price":"$0.94738","currency":"USD"},{"qty":5000,"price":"$0.90001","currency":"USD"},{"qty":10000,"price":"$0.87971","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/1985533422cb05f7103badb70f2e441b.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF12NC(4.0)-40DP-0.5V(51)/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy DF12NC(4.0)-40DP-0.5V(51)?","answer":"Submit a quote request for current pricing and availability — confirmed at quote time."},{"question":"What is the mated stacking height of DF12NC(4.0)-40DP-0.5V(51)?","answer":"The mated stacking height is 4mm. This is the fixed gap between the two parallel PCBs after the header mates with its receptacle."},{"question":"Is DF12NC(4.0)-40DP-0.5V(51) RoHS compliant?","answer":"Yes, it is listed as RoHS Compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12NC~14.0~2-40DP-0.5V~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/DF12NC~14.0~2-40DP-0.5V~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}}