{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"71991-805LF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"71991-805LF","canonicalUrl":"https://icsourcedirect.com/amphenol/71991-805LF","factsUrl":"https://icsourcedirect.com/api/mcp/products/71991-805LF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC (FCI) Dubox™ 71991-805LF, 10-position dual-row female socket header, 0.100\" (2.54mm) pitch, through-hole solder termination, 15µin gold mating finish, 11.04mm mated stack height, blue thermoplastic UL94 V-0 housing.","salesMarkdown":"## 10-Position Dual-Row Socket — 0.100\" Pitch, 15µin Gold The 71991-805LF: The mating contacts are finished with 15µinch (0.38µm) gold over phosphor bronze — enough for reliable signal connections in moderate-cycle industrial or telecom applications. The solder tails are tin-plated (78.7µinch / 2.00µm) for a clean, lead-free solder joint. Mated stack height is fixed at 11.04mm, which sets the board-to-board clearance and enclosure z-height budget. ## Board-to-Board Stacking with Fixed 11.04mm Height As a bottom or top entry receptacle, this part can be mounted on either side of the PCB, though the through-hole solder termination (0.118\" / 3.00mm post length) is designed for a standard plated-through-hole board. The insulation height of 0.275\" (6.99mm) provides clearance for routing traces under the connector body. Applications listed include automotive, general purpose, industrial, and telecommunications — the 15µinch gold finish supports these environments where moderate humidity or temperature cycling is present, though the 30µinch gold variant (71991-305LF) is better suited for higher mating-cycle or corrosive conditions. ## Selection Note: 15µinch vs 30µinch Gold The 71991-805LF uses 15µinch gold on the mating contacts. For applications requiring higher mating cycle life or better corrosion resistance, the 71991-305LF (10-position, 30µinch gold) and 71991-308LF (16-position, 30µinch gold) are direct pin-compatible alternatives within the same Dubox series. The 71991-808LF offers 16 positions with the same 15µinch gold finish, useful when the BOM calls for more I/O in the same footprint pitch.","metaTitle":"71991-805LF Amphenol ICC Dubox 10-Pin Female Socket Header","metaDescription":"Buy 71991-805LF Amphenol ICC (FCI) Dubox 10-position female socket header, 0.100\" pitch, 15µin gold, 11.04mm stack height. Active, RoHS. RFQ for pricing.","metaKeywords":null},"attributes":{"series":"Dubox™","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Female Socket Headers"],"specifications":{"Mfr":"Amphenol ICC (FCI)","Style":"Board to Board","Series":"Dubox™","Package":"Tube","Features":"-","Termination":"Solder","Applications":"Automotive, General Purpose, Industrial, Telecommunications","Contact Type":"Female Socket","Contact Shape":"Square","Mounting Type":"Through Hole","Connector Type":"Receptacle, Bottom or Top Entry","Fastening Type":"Push-Pull","Number of Rows":"2","Pitch - Mating":"0.100\\\" (2.54mm)","Product Status":"Active","Voltage Rating":"-","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Blue","Insulation Height":"0.275\\\" (6.99mm)","Ingress Protection":"-","Base Product Number":"71991","Insulation Material":"Thermoplastic, Glass Filled","Number of Positions":"10","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.118\\\" (3.00mm)","Current Rating (Amps)":"-","Operating Temperature":"-","Mated Stacking Heights":"11.04mm","Contact Finish - Mating":"Gold","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"78.7µin (2.00µm)","Contact Finish Thickness - Mating":"15.0µin (0.38µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.18000","currency":"USD"},{"qty":10,"price":"$1.89700","currency":"USD"},{"qty":100,"price":"$1.69490","currency":"USD"},{"qty":500,"price":"$1.41240","currency":"USD"},{"qty":1000,"price":"$1.21064","currency":"USD"},{"qty":5000,"price":"$1.07343","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/d12387c44afc462d5fb4943551712d4d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mated stack height of 71991-805LF?","answer":"The mated stack height is 11.04mm, fixed by the receptacle design and the mating pin header height."},{"question":"What is the difference between 71991-805LF and 71991-305LF?","answer":"Both are 10-position Dubox receptacles with identical dimensions and materials. The 71991-305LF uses a 30µinch gold mating finish versus the 15µinch gold on the 805LF, offering higher mating cycle life and better corrosion resistance."},{"question":"Where can I buy 71991-805LF?","answer":"Availability and current pricing confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/71991-805LF","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/amphenol/71991-805LF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T20:41:44.623Z","lastPublished":"2026-07-23T20:41:44.623Z","indexable":true}}