{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF12NB-40DS-0.5V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF12NB-40DS-0.5V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12NB-40DS-0.5V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF12NB-40DS-0.5V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF12 Series, DF12NB-40DS-0.5V(51), 40 Position Receptacle, Center Strip Contacts, 0.020\" (0.50mm) Pitch, Surface Mount, 2.70mm Board Height, Gold Contact Finish.","salesMarkdown":"The Hirose DF12NB-40DS-0.5V(51) is a 40-position receptacle with center strip contacts from the DF12 series, designed for board-to-board mezzanine stacking. The 2.70mm board height accommodates mated stack heights of 3.5mm, 4mm, or 5mm depending on the mating header selected — a useful range for Z-axis constrained enclosures. The 0.50mm pitch sets the routing density — expect two traces per channel between pads on standard PCB fabrication. ## Comparing the 40-Position to the 36-Position Sibling The DF12NB-40DS-0.5V(51) carries 40 positions against the 36 positions of the DF12NB-36DS-0.5V(51) at the same 0.50mm pitch, same 2.70mm board height, same gold plating thickness. The decision between them is purely a circuit-count match — the footprint length scales with position count, so check that the board real estate and the number of signal lines align. No difference in current capability or mechanical envelope otherwise.","metaTitle":"Hirose DF12NB-40DS-0.5V(51) Receptacle, 40 Pos, 0.50mm Pitch","metaDescription":"Hirose DF12NB-40DS-0.5V(51) 40-position receptacle, 0.50mm pitch, 2.70mm board height. Gold contacts, solder retention. Mates to 3.5-5mm stack heights.","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":"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":"0.106\\\" (2.70mm)","Base Product Number":"DF12N","Number of Positions":"40","Mated Stacking Heights":"3.5mm, 4mm, 5mm","Contact Finish Thickness":"8.00µin (0.203µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2600","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.26000","currency":"USD"},{"qty":10,"price":"$1.06400","currency":"USD"},{"qty":25,"price":"$1.02080","currency":"USD"},{"qty":50,"price":"$0.99880","currency":"USD"},{"qty":100,"price":"$0.95550","currency":"USD"},{"qty":250,"price":"$0.86860","currency":"USD"},{"qty":500,"price":"$0.78174","currency":"USD"},{"qty":1000,"price":"$0.69488","currency":"USD"},{"qty":2000,"price":"$0.65145","currency":"USD"},{"qty":3000,"price":"$0.62973","currency":"USD"},{"qty":5000,"price":"$0.60802","currency":"USD"},{"qty":10000,"price":"$0.57762","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/a74c48cdf95daa96c276b55c3b6ffc5c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy DF12NB-40DS-0.5V(51) and how is it quoted?","answer":"The DF12NB-40DS-0.5V(51) is available to order through independent distribution."},{"question":"What are the mated stacking heights for DF12NB-40DS-0.5V(51)?","answer":"The DF12NB-40DS-0.5V(51) supports mated stacking heights of 3.5mm, 4mm, and 5mm, depending on the mating header selected."},{"question":"Does the DF12NB-40DS-0.5V(51) have solder retention?","answer":"Yes, the DF12NB-40DS-0.5V(51) includes solder retention features to anchor the connector during reflow and improve joint reliability."},{"question":"What is the contact finish thickness on DF12NB-40DS-0.5V(51)?","answer":"The contact finish thickness is 8.00µin (0.203µm) of gold over the contact surface."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF12NB-40DS-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/DF12NB-40DS-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}}