{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"79821-164HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"79821-164HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/79821-164HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/79821-164HLF","rawCanonicalId":null},"summary":{"shortDescription":"FCI BERGSTIK® II, Board to Board, Header, 64 Positions, 0.100\" (2.54 mm) Pitch, 2 Rows, Through Hole, Solder, Gold or Gold GXT™ Plating.","salesMarkdown":"The FCI BERGSTIK® II 79821-164HLF is a 64-position, dual-row, unshrouded male pin header on a 0.100\" (2.54 mm) pitch — a standard board-to-board interconnect for through-hole soldering. It carries a 5 A per contact current rating and a 110 V voltage rating, with the contact finish specified as Gold or Gold GXT™ at 30.0 µin (0.76 µm) on the mating surface. The insulation height sits at 0.100\" (2.54 mm), and the overall contact length of 0.730\" (18.54 mm) gives a 0.430\" (10.92 mm) mating section and a 0.200\" (5.08 mm) solder post. This is a straight, unshrouded header with push-pull fastening — typical for mezzanine board stacking where the mating receptacle provides the retention. ## What the 64 positions and 0.100\" pitch mean for your board The 64 positions in two rows at 0.100\" (2.54 mm) pitch and 0.100\" (2.54 mm) row spacing give a 32-per-row layout that matches the standard 0.100\" grid. This is a common footprint for backplane or daughtercard headers — the 64 circuits fill a 32-pin-per-row pattern, so the board layout needs a 32-wide through-hole pattern per side with a 0.100\" row-to-row offset.","metaTitle":"FCI BERGSTIK II 79821-164HLF Header, 64 Pos, 2.54 mm Pitch","metaDescription":"FCI BERGSTIK® II unshrouded header, 64 positions, 0.100\" (2.54 mm) pitch, 2 rows, through-hole, gold plating. Active lifecycle. Quoted 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":"64","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":"$3.7703","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c8f0394c32e820c9621af8eb0b9440c3.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/79821-164HLF/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 79821-164HLF and what is the lead time?","answer":"Current pricing and lead time are confirmed at quote time — contact the storefront with your BOM quantity for a same-day quote."},{"question":"What is the pitch of 79821-164HLF?","answer":"The mating pitch is 0.100\" (2.54 mm), with the same 0.100\" (2.54 mm) row spacing."},{"question":"Is this header shrouded or unshrouded?","answer":"It is unshrouded — the male pins are exposed, so the mating receptacle must provide the polarization and retention."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/79821-164HLF","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/79821-164HLF 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}}