{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"87916-421HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"87916-421HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/87916-421HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/87916-421HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BERGSTIK® II, 87916-421HLF, 21 Position, 0.100\" (2.54mm) Pitch, Unshrouded, Through Hole, Tin, 5A, 110V.","salesMarkdown":"The Amphenol 87916-421HLF is a 21-position, single-row, unshrouded pin header from the BERGSTIK® II series. It uses the industry-standard 0.100\" (2.54mm) pitch, making it a direct footprint match for standard 0.100\" receptacles. The header is through-hole mounted for solder termination, with tin-plated phosphor bronze contacts rated at 5 A per circuit at 110 V. Typical use is as a board-to-board interconnect where a low-cost, unkeyed pin header is called for — common in internal power/signal distribution on PCBs, test fixtures, and general-purpose prototyping. ## What the Ratings Mean for Fit The 0.100\" (2.54mm) pitch is the most common pin-header spacing in the industry — it matches the vast majority of standard IDC receptacles, crimp housings, and board-to-board sockets. The 21-position count is the exact circuit count a BOM line calls for; the header is fully loaded with all positions populated. The 5 A per-contact rating is typical for a tin-plated square pin of this size — adequate for signal and moderate power duty, but the tin finish limits mating cycle life compared to gold. The unshrouded design means there is no polarization key or latch: the mating receptacle must provide its own orientation features, and the connection relies on the friction of the pin-to-socket interface. ## Sourcing and Lifecycle The 87916-421HLF carries an Active lifecycle status from Amphenol — no end-of-life notice on record. No official direct replacement or cross-reference is listed, but the BERGSTIK® II series includes many position-count and plating variants at the same 0.100\" pitch.","metaTitle":"Amphenol 87916-421HLF BERGSTIK II Header, 21 Pos","metaDescription":"Amphenol 87916-421HLF BERGSTIK® II unshrouded header, 21 positions, 0.100\" pitch, tin-plated, rated 5 A at 110 V. Active production, sourced to order.","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":"87916","Insulation Material":"-","Number of Positions":"21","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.128\\\" (3.25mm)","Current Rating (Amps)":"5A","Operating Temperature":"-","Mated Stacking Heights":"-","Overall Contact Length":"1.058\\\" (26.87mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.830\\\" (21.08mm)","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/87916-421HLF/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/87916-421HLF","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/87916-421HLF 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}}