{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"95278-401A40LF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"95278-401A40LF","canonicalUrl":"https://icsourcedirect.com/amphenol/95278-401A40LF","factsUrl":"https://icsourcedirect.com/api/mcp/products/95278-401A40LF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC (FCI) BERGSTIK® unshrouded breakaway header, 40 positions, 2 rows, 0.100\" (2.54 mm) pitch, tin-plated square pins, surface mount, pick-and-place compatible, UL94 V-0 black thermoplastic, rated 3 A per contact, -65°C to 125°C.","salesMarkdown":"The 95278-401A40LF: For applications requiring hundreds of cycles, a gold-plated sibling (e.g., 95278-101A08LF with 30 µin gold) would be the better choice. ## Surface Mount Assembly and Pick-and-Place The header is terminated by solder to surface-mount pads, and the package includes a pick-and-place feature for automated placement. The UL94 V-0 thermoplastic housing withstands reflow temperatures without deformation. The unshrouded profile means no extra z-height is consumed by a shroud, which helps in tight board-to-board spacing. ## Peer Comparison: Gold vs Tin Mating Finish The 95278-101A08LF is a direct peer from the same series with 8 positions and gold (GXT™) mating finish at 30 µin. The gold contact is rated for higher mating cycle life (500+ cycles) compared to the tin finish on the 95278-401A40LF. For a 40-position design that needs frequent board swaps, the gold version is the upgrade path — but the tin version is cost-effective for one-time or low-cycle assembly.","metaTitle":"95278-401A40LF BERGSTIK® Header 40 Pos 2.54mm SMT","metaDescription":"Amphenol ICC (FCI) 95278-401A40LF BERGSTIK® unshrouded header, 40 positions, 2.54 mm pitch, 3 A per contact, tin plating, SMT, active RoHS. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"BERGSTIK®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"Amphenol ICC (FCI)","Style":"Board to Board","Series":"BERGSTIK®","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Pick and Place","Shrouding":"Unshrouded","Termination":"Solder","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Surface Mount","Connector Type":"Header, Breakaway","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":"Black","Insulation Height":"0.100\\\" (2.54mm)","Ingress Protection":"-","Base Product Number":"95278","Insulation Material":"Thermoplastic","Number of Positions":"40","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Finish - Post":"Tin","Contact Length - Post":"-","Current Rating (Amps)":"3A per Contact","Operating Temperature":"-65°C~125°C","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.232\\\" (5.90mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"78.7µin (2.00µm)","Contact Finish Thickness - Mating":"78.7µin (2.00µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5219","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.16000","currency":"USD"},{"qty":10,"price":"$1.88200","currency":"USD"},{"qty":100,"price":"$1.68220","currency":"USD"},{"qty":400,"price":"$1.52195","currency":"USD"},{"qty":800,"price":"$1.36175","currency":"USD"},{"qty":1200,"price":"$1.20155","currency":"USD"},{"qty":2000,"price":"$1.16150","currency":"USD"},{"qty":2800,"price":"$1.12144","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 95278-401A40LF and how do I get a price?","answer":"The 95278-401A40LF is sourced through independent distribution. No stock-holding claim is made; each order is sourced per request."},{"question":"What is the closest functional second-source or alternative for 95278-401A40LF?","answer":"The 95278-101A08LF is a lower-position (8) sibling with gold plating; the 95293-401A04LF is a single-row, 4-position version with tin. Neither is a direct pin-for-pin replacement for the 40-position dual-row header."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/95278-401A40LF","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/95278-401A40LF 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}}