{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"79821-418HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"79821-418HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/79821-418HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/79821-418HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BERGSTIK® II, 79821-418HLF, 18-position dual-row unshrouded header, 0.100\" (2.54mm) pitch, through-hole solder termination, tin-plated square pins, 5A, UL94 V-0.","salesMarkdown":"All 18 positions are loaded with square male pins in phosphor bronze, finished with 100.0µin (2.54µm) of tin on the mating surface and tin on the solder posts. The 0.100\" pitch is the bread-and-butter through-hole spacing — your board footprint is a standard 0.100\" grid with 0.100\" row spacing, so the layout work is already done by decades of DIP and header patterns. For a permanent board-to-board join or a connector that mates once and stays, tin is fine. For repeated disconnect in a field-service harness, you'd want the gold-plated sibling in the same series. The 110V rating is conservative for the 0.100\" creepage distance; it's fine for logic-level and low-voltage power, but don't push it near the limit in humid environments without conformal coating. The through-hole solder termination gives a reliable mechanical anchor — the 0.200\" (5.08mm) post length is long enough for a solid solder fillet on a standard 0.062\" board. The overall contact length of 0.730\" (18.54mm) with a 0.430\" (10.92mm) mating length means the pin protrudes well into the mating receptacle for good contact wipe.","metaTitle":"Amphenol 79821-418HLF BERGSTIK II Header, 18 Pos","metaDescription":"Amphenol 79821-418HLF BERGSTIK® II unshrouded header, 18 positions, 0.100\" pitch, 5A, tin plating, UL94 V-0. 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":"2","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":"79821","Insulation Material":"-","Number of Positions":"18","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.200\\\" (5.08mm)","Current Rating (Amps)":"5A","Operating Temperature":"-","Mated Stacking Heights":"-","Overall Contact Length":"0.730\\\" (18.54mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.430\\\" (10.92mm)","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":"$2.5700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c8f0394c32e820c9621af8eb0b9440c3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/79821-418HLF/alternatives.json"},"ai":{"faq":[{"question":"How many positions does the 79821-418HLF header have?","answer":"It has 18 positions in a dual-row configuration, all positions loaded."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/79821-418HLF","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/79821-418HLF 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}}