{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"79821-118HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"79821-118HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/79821-118HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/79821-118HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BERGSTIK® II, 79821-118HLF, Board to Board, Header, 18 Positions, 2 Rows, 0.100\" (2.54mm) Pitch, Through Hole, Solder, Gold or Gold GXT™ Mating Finish.","salesMarkdown":"## Board-to-Board Header for Standard 0.100-inch Grids The Amphenol 79821-118HLF is an 18-position, dual-row unshrouded header from the BERGSTIK® II series, designed for board-to-board interconnect on the standard 0.100\" (2.54 mm) pitch grid. This through-hole, solder-terminated male pin header uses square pins with phosphor bronze contacts, and the mating finish is specified as gold or Gold GXT™ at 30.0 µin (0.76 µm) thickness. It is rated for 5 A per contact at 110 V, with a UL94 V-0 rated black insulation housing. The 0.100\" (2.54 mm) pitch and 0.100\" row spacing are the classic PC/104 and legacy ISA-bus footprint — any board designed for that grid will accept this header without a layout change. The 5 A per-contact rating is typical for signal-level and moderate power distribution on a 0.025\" square pin; derate if the ambient temperature inside the enclosure exceeds 25 °C. As an unshrouded header with push-pull fastening, it mates with any standard 0.100\" pitch, dual-row female socket that accepts a 0.025\" square pin — typically BERGSTIK II or similar shrouded receptacles. The 0.430\" (10.92 mm) mating pin length gives clearance for standard box-type sockets.","metaTitle":"Amphenol 79821-118HLF BERGSTIK II Header, 18 Pos","metaDescription":"Amphenol 79821-118HLF BERGSTIK II unshrouded header, 18 positions, dual-row 0.100\" pitch, 5 A, 110 V, gold/GXT plating. Active production, sourced per 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":"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":"-","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":"Gold or Gold, GXT™","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":"30.0µin (0.76µm)"}},"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/79821-118HLF/alternatives.json"},"ai":{"faq":[{"question":"What is the exact pitch for 79821-118HLF?","answer":"The pitch is 0.100\" (2.54 mm) on both the mating and row spacing, with 18 positions loaded across two rows."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/79821-118HLF","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/79821-118HLF 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}}