{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"91276-427HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"91276-427HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/91276-427HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/91276-427HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BERGSTIK® II, 27-position single-row unshrouded header, 0.100\" (2.54 mm) pitch, 5 A per circuit at 110 V, tin-plated phosphor bronze contacts, through-hole solder termination, UL94 V-0.","salesMarkdown":"The Amphenol 91276-427HLF is a 27-position single-row unshrouded header from the BERGSTIK® II series, on the standard 0.100\" (2.54 mm) pitch. It carries tin-plated phosphor bronze square pins rated 5 A per circuit at 110 V, with a full 0.900\" (22.86 mm) mating length. The through-hole solder termination and UL94 V-0 black insulation make it a straightforward, cost-effective board-to-board interconnect for signal and moderate power duty. ## What the ratings mean for your board The 0.100\" (2.54 mm) pitch is a standard footprint — it matches legacy 0.100\" grid layouts and leaves enough room for a single trace between pads on a typical 1 oz copper board. The 5 A per circuit rating is conservative for the contact size; the real limit is the temperature rise in the housing, so derate if the board runs hot or if multiple adjacent pins carry full current. Tin plating on both the mating and post surfaces keeps the cost low, but limits the mating cycle count — expect a few dozen insertions before the tin wipes thin; for frequent reconnects, a gold-plated variant in the same series would be a better fit. ## Sourcing and lifecycle This part carries an Active lifecycle status from Amphenol — no end-of-life notice, no last-time-buy pressure. No official cross-reference or direct replacement is documented.","metaTitle":"Amphenol BERGSTIK II 91276-427HLF, 27-Pos Header","metaDescription":"Amphenol BERGSTIK II 91276-427HLF 27-position single-row unshrouded header, 0.100\" (2.54 mm) pitch, 5 A, 110 V, tin-plated contacts, UL94 V-0.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Style":"Board to Board","title":"91276-427HLF","Series":"BERGSTIK® II","Package":"Bag","Shrouding":"Unshrouded","Termination":"Solder","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Through Hole","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"1","Pitch - Mating":"0.100\\\" (2.54mm)","Voltage Rating":"110V","Contact Material":"Phosphor Bronze","Insulation Color":"Black","Insulation Height":"0.100\\\" (2.54mm)","Base Product Number":"91276","Number of Positions":"27","Contact Finish - Post":"Tin","Contact Length - Post":"0.225\\\" (5.72mm)","Current Rating (Amps)":"5A","Overall Contact Length":"1.225\\\" (31.12mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.900\\\" (22.86mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Mating":"100.0µin (2.54µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2197","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/92307fceaf3148c5e5d11d6ec0b95cb1.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/91276-427HLF/alternatives.json"},"ai":{"faq":[{"question":"Is 91276-427HLF available via RFQ confirmation?","answer":"Contact the storefront with your BOM for a same-day quote."},{"question":"What is the pitch of 91276-427HLF?","answer":"The pitch is 0.100\" (2.54 mm), a standard industry spacing that matches common board layouts and legacy 0.100\" grid patterns."},{"question":"Is 91276-427HLF shrouded or unshrouded?","answer":"It is an unshrouded header — no polarization keying or side walls, so the mating receptacle must be aligned manually during assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/91276-427HLF","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/91276-427HLF 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}}