{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"91276-121HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"91276-121HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/91276-121HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/91276-121HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BERGSTIK II, 0.100\" (2.54 mm) pitch single-row header, 21 circuits, male pin through-hole, 5 A per circuit at 110 V, 30 µin gold on mating interface, push-pull fastening, UL94 V-0 black housing.","salesMarkdown":"## BERGSTIK II Unshrouded Header, 21 Circuits The Amphenol 91276-121HLF is a BERGSTIK® II series unshrouded male pin header, 21 positions in a single row on the industry-standard 0.100\" (2.54 mm) pitch. It terminates through-hole for solder attachment to the PCB, with a 0.900\" (22.86 mm) mating pin length and a 0.225\" (5.72 mm) post for board thickness flexibility. The push-pull fastening means the retention comes entirely from the mating receptacle's latch system — the header itself provides no locking. The 0.100\" (2.54 mm) pitch is the classic breadboard-compatible spacing — any PCB footprint or mating socket designed for standard 0.100\" headers will accept this part. The 21-position count is the BOM line check: confirm your circuit count matches before committing. Tin-plated headers at this pitch are cheaper but degrade faster under repeated use. The phosphor bronze contacts are a reliable spring alloy for this pitch class — they hold contact force without taking a set over temperature. The push-pull retention means the mating half must provide the latch; the header itself has no locking ramp.","metaTitle":"Amphenol BERGSTIK II 91276-121HLF","metaDescription":"Amphenol BERGSTIK II unshrouded header, 21 circuits, 0.100\" pitch, 5 A, 30 µ\" gold, UL94 V-0. Active production, quoted to order. Order 91276-121HLF.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Style":"Board to Board","title":"91276-121HLF","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":"21","Contact Length - Post":"0.225\\\" (5.72mm)","Current Rating (Amps)":"5A","Overall Contact Length":"1.225\\\" (31.12mm)","Contact Finish - Mating":"Gold or Gold, GXT™","Contact Length - Mating":"0.900\\\" (22.86mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Mating":"30.0µin (0.76µm)"}},"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/91276-121HLF/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of 91276-121HLF?","answer":"The pitch is 0.100\" (2.54 mm), the industry-standard spacing for breadboard-compatible headers and sockets."},{"question":"What is the current rating of 91276-121HLF?","answer":"Rated 5 A per circuit at 110 V, with 30 µ\" gold plating on the mating interface for repeated mating cycle durability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/91276-121HLF","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/91276-121HLF 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}}