{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"91276-421HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"91276-421HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/91276-421HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/91276-421HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BERGSTIK® II unshrouded header, 21 positions, 0.100\" (2.54mm) pitch, single row, through-hole solder termination, tin-plated contacts, 5A current rating, 110V voltage rating, UL94 V-0.","salesMarkdown":"The Amphenol 91276-421HLF is a 21-position unshrouded pin header from the BERGSTIK® II series, built on the standard 0.100\" (2.54 mm) pitch. This is a single-row, through-hole, male-pin header with all 21 positions loaded — no skipped pins. It's the kind of workhorse header you'd reach for when you need a reliable board-to-board interconnect on a legacy footprint, or when you're building a test fixture that needs to mate with a standard 0.100\" IDC or crimp receptacle. The unshrouded design means the pin row is fully exposed, so the mating half — typically a socket strip or a ribbon-cable IDC connector — provides its own alignment and polarization. That 5 A is a per-contact rating at ambient — in a dense harness or at elevated cabinet temperature, you'd derate per the manufacturer's curve. The 0.100\" pitch gives you a standard 2.54 mm grid footprint, which means it drops onto any board laid out for the classic DIP or Berg strip pattern. No surprises on the board layout side. Tin-on-tin contacts are the standard choice for cost-sensitive, moderate-cycle applications; they don't have the corrosion resistance of gold, but in a clean indoor environment they'll outlast the equipment. The overall contact length is 1.225\" (31.12 mm), with a 0.900\" (22.86 mm) mating length and a 0.225\" (5.72 mm) solder tail.","metaTitle":"91276-421HLF BERGSTIK II Header, 21 Pos, 0.100\" Pitch, 5A","metaDescription":"91276-421HLF BERGSTIK® II unshrouded header, 21 positions, 0.100\" pitch, 5A, tin-plated. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Mfr":"Amphenol ICC (FCI)","Style":"Board to Board","Series":"BERGSTIK® II","Package":"Bag","Features":"-","Shrouding":"Unshrouded","Termination":"Solder","Applications":"-","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)","Product Status":"Active","Voltage Rating":"110V","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Black","Insulation Height":"0.100\\\" (2.54mm)","Ingress Protection":"-","Base Product Number":"91276","Insulation Material":"-","Number of Positions":"21","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.225\\\" (5.72mm)","Current Rating (Amps)":"5A","Operating Temperature":"-","Mated Stacking Heights":"-","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 - Post":"-","Contact Finish Thickness - Mating":"100.0µin (2.54µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1406","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/92307fceaf3148c5e5d11d6ec0b95cb1.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/91276-421HLF/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of 91276-421HLF?","answer":"The pitch is 0.100\" (2.54 mm), which is the standard legacy DIP/Berg strip footprint."},{"question":"What are the specifications of 91276-421HLF?","answer":"It is a 21-position, single-row, unshrouded pin header on 0.100\" pitch, rated 5 A per contact at 110 V, with 100.0 µin tin plating on the mating surface, through-hole solder termination, and a UL94 V-0 black housing."},{"question":"Is 91276-421HLF RoHS compliant?","answer":"The part is listed with tin plating on both the mating and post surfaces, which is consistent with RoHS-compliant finishes. Confirm the specific RoHS certificate through the manufacturer's documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/91276-421HLF","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/91276-421HLF 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}}