{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"79821-450HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"79821-450HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/79821-450HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/79821-450HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol BergStik® II, Board to Board Header, 50 Positions, 2 Rows, 0.100\" (2.54mm) Pitch, Through Hole, Solder Termination, Tin Plating, UL94 V-0.","salesMarkdown":"The Amphenol 79821-450HLF is a 50-position, dual-row unshrouded pin header from the BergStik® II series, built on the standard 0.100\" (2.54 mm) pitch that matches legacy DIP footprints and perf-board grids. The UL94 V-0 black housing and through-hole solder tails suit it for production assemblies inside enclosed equipment where flame rating is a compliance requirement. ## What the 5 A Rating Means for This Header Tin-on-tin interfaces work well for a single mate or occasional reconnection in a low-vibration environment — the contact resistance stays stable through the first few cycles. The 0.100\" pitch and 0.100\" row spacing place the 50 pins on a standard 0.100\" x 0.100\" grid — two rows of 25. The 0.200\" (5.08 mm) post length gives enough tail for a typical 1.6 mm PCB with room for a solder fillet on the bottom side. The overall contact length of 0.730\" (18.54 mm) and a mating pin length of 0.430\" (10.92 mm) mean the header can stack with a standard receptacle without bottoming out in the housing cavity. The square phosphor bronze pins (0.025\" square cross-section) are the industry-standard geometry for BergStik-compatible receptacles. Termination is through-hole solder; no press-fit or surface-mount option on this variant.","metaTitle":"Amphenol 79821-450HLF BergStik II Header, 50 Pos","metaDescription":"Amphenol BergStik II unshrouded header, 50 positions, 2 rows, 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":"50","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":"$4.8974","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c8f0394c32e820c9621af8eb0b9440c3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/79821-450HLF/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 79821-450HLF?","answer":"Submit your BOM quantity to the storefront for a same-day quote with current pricing and availability."},{"question":"What is the pitch of the 79821-450HLF?","answer":"The pitch is 0.100\" (2.54 mm) on both the pin spacing and the row-to-row spacing, matching the standard DIP grid."},{"question":"What is the pin count for the 79821-450HLF?","answer":"50 positions, arranged in two rows of 25, all positions loaded."},{"question":"What is the mating connector for the 79821-450HLF?","answer":"It mates with any standard 0.100\" pitch crimp receptacle housing or IDC socket that accepts 0.025\" square pins — the BergStik II receptacle family or equivalent industry-standard housings."},{"question":"Is the 79821-450HLF RoHS compliant?","answer":"Yes — the 79821-450HLF is RoHS compliant per the manufacturer's listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/79821-450HLF","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/79821-450HLF 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}}