{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF81D-40P-0.4SD(52)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"DF81D-40P-0.4SD~152~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF81D-40P-0.4SD~152~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/DF81D-40P-0.4SD(52)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose DF81 series plug, 40 positions, 0.40 mm pitch, single row, gold-plated outer shroud contacts, free-hanging solder termination, black housing, accepts 34-36 AWG discrete or ribbon cable.","salesMarkdown":"## 0.40 mm Pitch, 40-Position Plug for High-Density Cable Assemblies The Hirose DF81D-40P-0.4SD(52) is a 40-position plug from the DF81 series, built for high-density interconnects where board real estate is tight. The 0.016\" (0.40 mm) pitch packs 40 circuits into a single-row, free-hanging package — the narrow spacing means the mating receptacle must match that pitch exactly, and the board footprint has zero room for routing error. The black housing accepts discrete or ribbon cable, terminated by soldering the conductors directly to the contacts — no crimp tooling required. This plug accepts two wire gauge ranges: 34-36 AWG and 36-46 AWG. The dual range covers fine-wire ribbon cable (36-46 AWG) and slightly heavier discrete conductors (34-36 AWG). Termination is by soldering — the outer shroud contacts are designed for direct solder attachment, so the harness builder needs a soldering station, not a crimp press. ## Position Count vs. Sibling: 40 vs. 50 The DF81D-40P-0.4SD(52) shares its 0.40 mm pitch, gold plating, and solder termination with the DF81D-50P-0.4SD(52). If the BOM calls for 40 positions, this is the match; the 50-position sibling is a genuine alternative only if the circuit count can be increased. No other spec changes between the two — same housing, same wire range, same lifecycle status.","metaTitle":"Hirose DF81D-40P-0.4SD(52) Plug, 40 Pos, 0.40 mm Pitch","metaDescription":"Hirose DF81 series plug, 40 positions, 0.40 mm pitch, gold-plated contacts. Accepts 34-36 AWG discrete or ribbon cable. Active production, RoHS compliant.","metaKeywords":null},"attributes":{"series":"DF81","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Circular Connectors","Panel-Mount & In-Line Circular"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Color":"Black","Pitch":"0.016\\\" (0.40mm)","Series":"DF81","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"-","Wire Type":"Discrete or Ribbon Cable","Wire Gauge":"34-36 AWG, 36-46 AWG","Row Spacing":"-","Contact Type":"Outer Shroud Contact","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Plug","Contact Finish":"Gold","Fastening Type":"-","Number of Rows":"1","Product Status":"Active","lifecycle_stage":"unknown","Cable Termination":"Solder","Base Product Number":"DF81","Number of Positions":"40","Contact Finish Thickness":"2.00µin (0.051µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7300","priceTiers":[{"qty":1,"price":"$2.73000","currency":"USD"},{"qty":10,"price":"$2.47600","currency":"USD"},{"qty":25,"price":"$2.34520","currency":"USD"},{"qty":50,"price":"$2.29060","currency":"USD"},{"qty":100,"price":"$2.18160","currency":"USD"},{"qty":250,"price":"$1.90888","currency":"USD"},{"qty":500,"price":"$1.85436","currency":"USD"},{"qty":1000,"price":"$1.58166","currency":"USD"},{"qty":1500,"price":"$1.52712","currency":"USD"},{"qty":2500,"price":"$1.47258","currency":"USD"},{"qty":5000,"price":"$1.41804","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/bcb7e54b20d00d2b634aa876972c34fe.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/DF81D-40P-0.4SD(52)/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy DF81D-40P-0.4SD(52)?","answer":"Submit a request for quote (RFQ) for current pricing and availability — confirmed at quote time."},{"question":"What wire gauge does DF81D-40P-0.4SD(52) accept?","answer":"The DF81D-40P-0.4SD(52) accepts 34-36 AWG and 36-46 AWG wire, covering both discrete and ribbon cable types."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/DF81D-40P-0.4SD~152~2","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/DF81D-40P-0.4SD~152~2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}