{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12NC(3.5)-20DP-0.5V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12NC~13.5~2-20DP-0.5V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12NC~13.5~2-20DP-0.5V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12NC(3.5)-20DP-0.5V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 series header, outer shroud contacts, 20 positions, 2 rows, 0.020\" (0.50mm) pitch, 3.5mm mated stacking height, 2.80mm above board, gold plating, surface mount.","salesMarkdown":"The Hirose DF12NC(3.5)-20DP-0.5V(51) is a 20-position header from the DF12 series, designed for parallel board stacking with a fixed mated stack height of 3.5mm. It uses outer shroud contacts on a 0.50mm pitch in two rows, with the connector body sitting 2.80mm above the board surface. This is a surface-mount part intended for mezzanine-style interconnects where the top and bottom PCBs run parallel with a precise z-height gap. ## Stack Height and Footprint — What the 3.5mm and 0.50mm Pitch Mean That 3.5mm gap is fixed by the connector design — not adjustable — so the board-to-board clearance in the enclosure must match this exactly. The 2.80mm above-board height on the header side leaves room under the top board for other components, but the receptacle side will add its own height. Gold plating at 8.00µin on the contacts handles repeated mating cycles typical of mezzanine board stacks that may be separated for rework or testing. The outer shroud contacts provide some alignment guidance during mating — the shroud walls take the initial misalignment before the signal pins engage. If the BOM calls for more I/O at the same 3.5mm stack height, the DF12 series offers 40-position (DF12NC(3.5)-40DP-0.5V(51)) and 50-position (DF12NC(3.5)-50DP-0.5V(51)) variants with the same 0.50mm pitch, 2.80mm above-board height, and gold plating. The footprint widens to accommodate the extra positions, so the PCB layout must scale accordingly. For the same 20 positions but a taller stack, the DF12NC(4.0)-20DP-0.5V(51) gives a 4.0mm mated height with a 3.30mm above-board profile.","metaTitle":"Hirose DF12NC(3.5)-20DP-0.5V(51) Header, 20 Pos, 0.50mm","metaDescription":"Hirose DF12 series header, 20 positions, 0.50mm pitch, 3.5mm mated stack height. Gold-plated outer shroud contacts, SMT. Active production, sourced to order.","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":"0.110\\\" (2.80mm)","Base Product Number":"DF12N","Number of Positions":"20","Mated Stacking Heights":"3.5mm","Contact Finish Thickness":"8.00µin (0.203µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1700","priceTiers":[{"qty":1,"price":"$1.17000","currency":"USD"},{"qty":10,"price":"$0.99000","currency":"USD"},{"qty":25,"price":"$0.94960","currency":"USD"},{"qty":50,"price":"$0.92920","currency":"USD"},{"qty":100,"price":"$0.88880","currency":"USD"},{"qty":250,"price":"$0.80800","currency":"USD"},{"qty":500,"price":"$0.72720","currency":"USD"},{"qty":1000,"price":"$0.64640","currency":"USD"},{"qty":2000,"price":"$0.60600","currency":"USD"},{"qty":3000,"price":"$0.58580","currency":"USD"},{"qty":5000,"price":"$0.56560","currency":"USD"},{"qty":10000,"price":"$0.53732","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/499e248a88eb8b96da5508008a28b293.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF12NC(3.5)-20DP-0.5V(51)/alternatives.json"},"ai":{"faq":[{"question":"What is the exact stacking height for DF12NC(3.5)-20DP-0.5V(51)?","answer":"The mated stacking height is 3.5mm, measured between the two parallel PCBs when mated with the matching DF12 receptacle."},{"question":"What is the pitch of the DF12 series connectors?","answer":"The DF12 series uses a 0.020\" (0.50mm) pitch across all position counts in this family."},{"question":"Where can I buy DF12NC(3.5)-20DP-0.5V(51) available via RFQ confirmation?","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/DF12NC~13.5~2-20DP-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~13.5~2-20DP-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}}