{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"77311-124-20LF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"77311-124-20LF","canonicalUrl":"https://icsourcedirect.com/amphenol/77311-124-20LF","factsUrl":"https://icsourcedirect.com/api/mcp/products/77311-124-20LF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC (FCI) BERGSTIK® unshrouded header, 20 positions, 0.100\" (2.54mm) pitch, 3A per contact, gold or GXT™ mating finish, through-hole solder termination, UL94 V-0 black thermoplastic housing.","salesMarkdown":"## Position Count vs. Sibling Headers The 77311-124-20LF carries 20 positions. The choice comes down to the I/O count your board needs. Another 20-position sibling, the 77311-102-20LF, differs only in overall contact length (0.465\" vs 0.480\") — the mating pin length is shorter, which affects stack height with the receptacle. For the 77311-124-20LF, the 0.266\" mating length gives a standard 0.100\" board-to-board spacing when mated with a low-profile socket. Sourced through independent distribution channels.","metaTitle":"77311-124-20LF Amphenol ICC BERGSTIK® Header 20 Pos 2.54mm","metaDescription":"77311-124-20LF Amphenol ICC (FCI) BERGSTIK® unshrouded header, 20 positions, 0.100\" (2.54mm) pitch, 3A per contact, gold mating finish.","metaKeywords":null},"attributes":{"series":"BERGSTIK®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"Amphenol ICC (FCI)","Style":"Board to Board","Series":"BERGSTIK®","Package":"Bulk","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":"77311","Insulation Material":"Thermoplastic","Number of Positions":"20","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.114\\\" (2.90mm)","Current Rating (Amps)":"3A per Contact","Operating Temperature":"-65°C~125°C","Mated Stacking Heights":"-","Overall Contact Length":"0.480\\\" (12.19mm)","Contact Finish - Mating":"Gold or Gold, GXT™","Contact Length - Mating":"0.266\\\" (6.75mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"78.7µin (2.00µm)","Contact Finish Thickness - Mating":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.98000","currency":"USD"},{"qty":10,"price":"$1.72100","currency":"USD"},{"qty":100,"price":"$1.53750","currency":"USD"},{"qty":500,"price":"$1.28126","currency":"USD"},{"qty":1000,"price":"$1.09822","currency":"USD"},{"qty":5000,"price":"$0.97376","currency":"USD"},{"qty":10000,"price":"$0.95179","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/b7619af15a6f914d234facab530ef078.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 77311-124-20LF shrouded or unshrouded?","answer":"It is unshrouded. That means there is no plastic shroud around the pins — the mating receptacle relies on the pin alignment alone. No keying is provided, so double-check the mating half orientation during board layout."},{"question":"What is the closest functional second-source for 77311-124-20LF?","answer":"For a 20-position match, the 77311-102-20LF is a near-identical alternative with a slightly shorter overall contact length (0.465\" vs 0.480\")."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/77311-124-20LF","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/77311-124-20LF 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}}