{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"79821-420HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"79821-420HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/79821-420HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/79821-420HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol FCI BERGSTIK® II, Header, 20 Positions, 2 Rows, 0.100\" (2.54mm) Pitch, Through Hole, Solder, Tin, 5A, 110V, Unshrouded, UL94 V-0.","salesMarkdown":"The Amphenol FCI 79821-420HLF is a 20-position, dual-row unshrouded header from the BERGSTIK® II series, on the standard 0.100\" (2.54mm) pitch. The dual-row arrangement with 0.100\" (2.54mm) row spacing means the 20 pins occupy a 10-position-wide footprint per row. The overall contact length of 0.730\" (18.54mm) splits into a 0.430\" (10.92mm) mating length and a 0.200\" (5.08mm) solder tail — the post length is what determines the board thickness and through-hole barrel depth. 5 A per circuit is the rated current.","metaTitle":"Amphenol FCI BERGSTIK II 79821-420HLF, 20-Pin Header","metaDescription":"Amphenol FCI BERGSTIK II 79821-420HLF, 20-position dual-row unshrouded header, 0.100\" (2.54mm) pitch, tin contacts rated 5 A at 110 V.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Style":"Board to Board","title":"79821-420HLF","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":"2","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":"79821","Number of Positions":"20","Row Spacing - Mating":"0.100\\\" (2.54mm)","Contact Finish - Post":"Tin","Contact Length - Post":"0.200\\\" (5.08mm)","Current Rating (Amps)":"5A","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 - Mating":"100.0µin (2.54µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c8f0394c32e820c9621af8eb0b9440c3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/79821-420HLF/alternatives.json"},"ai":{"faq":[{"question":"What is the mating connector for the 79821-420HLF?","answer":"This unshrouded header mates with any standard 0.100\" (2.54mm) pitch dual-row receptacle, typically a BERGSTIK II socket or a generic IDC socket with matching pitch and row count."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/79821-420HLF","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/79821-420HLF 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}}