{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF40C-20DP-0.4V(51)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF40C-20DP-0.4V~151~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40C-20DP-0.4V~151~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF40C-20DP-0.4V(51)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF40 series plug, 20 positions, 0.016\" (0.40mm) pitch, 2 rows, gold-plated contacts, surface mount, 0.045\" (1.14mm) height above board, solder retention, Tape & Reel.","salesMarkdown":"The Hirose DF40C-20DP-0.4V(51) is a 20-position plug with outer shroud contacts from the DF40 series, designed for board-to-board mezzanine stacking. The connector sits just 0.045\" (1.14mm) above the board, which lets you squeeze the stack height budget in slim enclosures. ## Mated Stacking Heights and Board Fit This plug mates with the matching DF40 series receptacle to achieve a mated stacking height of 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, or 4mm — six discrete height options from the same connector pair. That range covers everything from ultra-slim phone-style builds at 1.5mm up to a standard mezzanine gap at 4mm where you can route passives between boards. The choice of receptacle height determines the final stack, so match the receptacle part number to your z-height requirement before locking the BOM. The connector includes solder retention features — additional SMT pads on the sides that anchor the part to the board during reflow. At a 0.40mm pitch, the signal pads alone don't provide enough shear strength to resist the nozzle forces from a pick-and-place head or the thermal stress of a lead-free reflow profile. Those retention pads prevent the connector from shifting or tombstoning, and they also help absorb the shear load from a cable tug if the assembly is handled before potting. The contacts are finished with 2.00µin (0.051µm) of gold over the base metal. For a production board that's mated once and then shipped, the gold flash keeps contact resistance low through the initial mate and the first few reconnections during test. ## Regulatory and Lifecycle Status The RoHS compliance covers EU Directive 2011/65/EU, which is the baseline for most global electronics manufacturing.","metaTitle":"Hirose DF40C-20DP-0.4V(51) Plug, 20 Pos, 0.40mm Pitch","metaDescription":"Hirose DF40C-20DP-0.4V(51) plug, 20 positions, 0.40mm pitch, 1.14mm height, gold contacts, solder retention. 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":"Solder Retention","Mounting Type":"Surface Mount","Connector Type":"Plug, Outer Shroud Contacts","Contact Finish":"Gold","Number of Rows":"2","Product Status":"Active","lifecycle_stage":"unknown","Height Above Board":"0.045\\\" (1.14mm)","Base Product Number":"DF40C","Number of Positions":"20","Mated Stacking Heights":"1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm","Contact Finish Thickness":"2.00µin (0.051µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7100","priceTiers":[{"qty":1,"price":"$0.71000","currency":"USD"},{"qty":10,"price":"$0.61800","currency":"USD"},{"qty":25,"price":"$0.56480","currency":"USD"},{"qty":50,"price":"$0.53160","currency":"USD"},{"qty":100,"price":"$0.50950","currency":"USD"},{"qty":250,"price":"$0.46520","currency":"USD"},{"qty":500,"price":"$0.44304","currency":"USD"},{"qty":1000,"price":"$0.36551","currency":"USD"},{"qty":2500,"price":"$0.33228","currency":"USD"},{"qty":5000,"price":"$0.32121","currency":"USD"},{"qty":10000,"price":"$0.29906","currency":"USD"},{"qty":15000,"price":"$0.29463","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/aec32b0d4a5f742c03de5786d68c7607.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF40C-20DP-0.4V(51)/alternatives.json"},"ai":{"faq":[{"question":"What is the mated stacking height for DF40C-20DP-0.4V(51)?","answer":"The DF40C-20DP-0.4V(51) plug mates with a DF40 series receptacle to achieve a mated stacking height of 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, or 4mm, depending on the receptacle height selected."},{"question":"Which receptacle mates with DF40C-20DP-0.4V(51)?","answer":"The DF40C-20DP-0.4V(51) mates with the matching DF40 series receptacle. The specific receptacle part number depends on the required mated stacking height (1.5mm to 4mm) and the desired position count."},{"question":"Where can I buy DF40C-20DP-0.4V(51)?","answer":"This part is sourced to order against your BOM quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF40C-20DP-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/DF40C-20DP-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":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}