{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"78511-409HLF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"78511-409HLF","canonicalUrl":"https://icsourcedirect.com/amphenol/78511-409HLF","factsUrl":"https://icsourcedirect.com/api/mcp/products/78511-409HLF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC (FCI) BERGSTIK® II, 78511-409HLF, 9-position single-row unshrouded header, 0.100\" (2.54mm) pitch, through-hole solder termination, tin-plated contacts rated 5A.","salesMarkdown":"## Product Introduction The 78511-409HLF is a 9-position, single-row unshrouded header from the Amphenol ICC BERGSTIK® II series. It uses square male pins on a standard 0.100\" (2.54mm) pitch, terminated by through-hole soldering into a PCB. This is a basic board-to-board interconnect — an unshrouded pin header meant to mate with a matching 0.100\" pitch receptacle, commonly used in prototyping, test fixtures, and internal board-to-wire or board-to-board connections where the mating half is secured by a separate locking mechanism or by the enclosure itself. ## Key Specs and What They Mean for Your Fit The 0.100\" pitch is the industry-standard breadboard spacing — any 0.100\" female socket strip or IDC receptacle will mate with it. The 9 positions mean this is a single-row, 9-pin header; the BOM line must match exactly. The 5A per-contact rating is typical for this pin size and pitch, but the tin-on-tin contact interface (100 µ\" thick on the mating side) means this header is best suited for applications with a limited number of mating cycles — think a few dozen insertions over its life, not frequent field service. The UL94 V-0 black housing gives it the flame rating required for equipment inside an enclosure. ## Mating and Termination This is an unshrouded header with push-pull fastening — there's no latch, so the mating receptacle must rely on its own retention (e.g., a friction lock or a separate strain relief). The overall contact length is 0.538\", with a mating pin length of 0.318\" and a solder tail of 0.120\". The square pins are phosphor bronze with a tin finish on both the mating and solder tails. It mates with any standard 0.100\" pitch female socket, such as the BERGSTIK II receptacle housing or a generic female header strip.","metaTitle":"78511-409HLF BERGSTIK II Header, 9-Pos, 0.100\" Pitch, 5A","metaDescription":"78511-409HLF BERGSTIK II unshrouded header, 9 positions, 0.100\" pitch, tin-plated contacts rated 5A. Active production, available 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":"1","Pitch - Mating":"0.100\\\" (2.54mm)","Product Status":"Active","Voltage Rating":"-","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Insulation Color":"Black","Insulation Height":"0.100\\\" (2.54mm)","Ingress Protection":"-","Base Product Number":"78511","Insulation Material":"-","Number of Positions":"9","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.120\\\" (3.05mm)","Current Rating (Amps)":"5A","Operating Temperature":"-65°C~125°C","Mated Stacking Heights":"-","Overall Contact Length":"0.538\\\" (13.67mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.318\\\" (8.08mm)","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":"$0.3080","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/92307fceaf3148c5e5d11d6ec0b95cb1.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/78511-409HLF/alternatives.json"},"ai":{"faq":[{"question":"What is the mating connector for 78511-409HLF?","answer":"This unshrouded header mates with any standard 0.100\" pitch female socket or receptacle, such as a BERGSTIK II receptacle housing or a generic female header strip."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/78511-409HLF","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/78511-409HLF 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}}