{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"91276-428HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"91276-428HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/91276-428HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/91276-428HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol FCI BERGSTIK II, 28-position unshrouded single-row male header, 0.100\" (2.54 mm) pitch, through-hole solder termination, tin-plated phosphor bronze contacts, 5 A, 110 V, UL94 V-0 black housing.","salesMarkdown":"The Amphenol FCI 91276-428HLF is a 28-position unshrouded single-row male header from the BERGSTIK II series, on the standard 0.100-inch (2.54 mm) pitch. It uses through-hole solder termination with a 0.225-inch (5.72 mm) post length and a full 0.900-inch (22.86 mm) mating pin length, making it a straight-fit for breadboard or perfboard layouts where the pin length clears a double-sided board or a mating IDC socket. Tin-plated phosphor bronze contacts carry 5 A per circuit at 110 V — typical for signal-level interconnects and low-power distribution, not bus-level power rails. The black UL94 V-0 housing and push-pull fastening keep it simple: no latch, no shroud, just a straight pin row that relies on the mating half for alignment. ## What the 0.100-inch pitch and 28 positions mean for your board The 0.100-inch (2.54 mm) pitch is the de facto standard for prototyping and legacy digital logic — every 0.100-inch IDC socket, ribbon cable header, and perfboard grid expects this spacing. The 28 positions are fully loaded (all positions populated), so the BOM line count matches the circuit count exactly. The unshrouded design means the mating receptacle must provide its own alignment key; common mates are the matching BERGSTIK II receptacle or a standard 0.100-inch IDC socket. Tin plating on both the mating and post surfaces keeps cost low but limits mating cycles — expect a few hundred mates before contact wear becomes noticeable, fine for a permanent or occasional-service connection. ## Sourcing and lifecycle The 91276-428HLF carries an Active lifecycle status — full production, no end-of-life notice. No official replacement or cross-reference is on record — the part is the current production version.","metaTitle":"Amphenol FCI BERGSTIK II 91276-428HLF, 28-Pin 0.100\" Header","metaDescription":"Amphenol FCI BERGSTIK II 91276-428HLF unshrouded single-row header, 28 positions, 0.100\" (2.54 mm) pitch, tin-plated contacts, 5 A, 110 V, 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":"91276-428HLF","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":"28","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":"$2.3000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/92307fceaf3148c5e5d11d6ec0b95cb1.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/91276-428HLF/alternatives.json"},"ai":{"faq":[{"question":"Where to buy 91276-428HLF available via RFQ confirmation?","answer":"Contact the storefront with your BOM for a same-day quote."},{"question":"What is the pin pitch of 91276-428HLF?","answer":"The pin pitch is 0.100 inches (2.54 mm), the standard spacing for breadboard and IDC socket compatibility."},{"question":"What is the current rating of 91276-428HLF?","answer":"The current rating is 5 A per circuit at 110 V — suitable for signal-level and low-power distribution, not bus-level power rails."},{"question":"Is 91276-428HLF RoHS compliant?","answer":"Yes — the part is RoHS compliant per the manufacturer's specification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/91276-428HLF","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/91276-428HLF 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}}