{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"79821-428HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"79821-428HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/79821-428HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/79821-428HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BergStik II, Board to Board Header, 28 Positions, 2 Row, 0.100\" (2.54mm) Pitch, Through Hole, Solder, Tin Contact Finish.","salesMarkdown":"The Amphenol 79821-428HLF is a 28-position, dual-row BergStik® II unshrouded header with a 0.100\" (2.54 mm) mating pitch and matching row spacing. The square male pins are phosphor bronze with a 100.0 µ\" (2.54 µm) tin plating on the mating surface and tin on the solder tails. ## Ratings and Fit Rated 5 A per contact at 110 V, the current capacity is typical for a 0.100\" pitch header with tin-plated contacts — the limiting factor is temperature rise through the housing, not the contact beam itself. The 0.430\" (10.92 mm) mating length and 0.200\" (5.08 mm) post length give a total contact length of 0.730\" (18.54 mm), which sets the board-to-board stack height when mated with a standard BergStik receptacle. As an unshrouded header, this part mates with any standard BergStik II or compatible 0.100\" pitch dual-row receptacle housing that accepts 0.025\" square pins. Through-hole solder termination gives a reliable mechanical anchor for the 28 pins; the 0.200\" post length fits standard PCB thicknesses.","metaTitle":"Amphenol 79821-428HLF BergStik II Header, 28 Pos","metaDescription":"Amphenol BergStik II unshrouded header, 28 positions, dual-row 0.100\" pitch, through-hole, tin-plated contacts rated 5 A. 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":"28","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":"$2.5380","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c8f0394c32e820c9621af8eb0b9440c3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/79821-428HLF/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 79821-428HLF and how do I get a price?","answer":"Submit your BOM quantity to the storefront for a same-day quote with current pricing and availability."},{"question":"What is the exact pitch and number of rows of 79821-428HLF?","answer":"The 79821-428HLF has a 0.100\" (2.54 mm) mating pitch with dual rows, and the row spacing is also 0.100\" (2.54 mm). It carries 28 positions total, all loaded."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/79821-428HLF","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/79821-428HLF 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}}