{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"77311-401-33LF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"77311-401-33LF","canonicalUrl":"https://icsourcedirect.com/amphenol/77311-401-33LF","factsUrl":"https://icsourcedirect.com/api/mcp/products/77311-401-33LF","rawCanonicalId":null},"summary":{"shortDescription":"Molex BERGSTIK header, order code 77311-401-33LF, 33 positions, single row, 0.100\" (2.54mm) pitch, 3A per contact, tin-plated phosphor bronze contacts, through-hole, solder termination, unshrouded.","salesMarkdown":"## 33-circuit unshrouded header The 77311-401-33LF is the 33-circuit member of the Molex BERGSTIK single-row male pin header line, unshrouded, with a 0.100\" (2.54mm) pitch. Rated 3A per contact with tin-plated phosphor bronze mating surfaces, it mounts through-hole with solder termination and carries a UL94 V-0 black thermoplastic housing rated -65°C to 125°C. ## Position count and pitch The 33-position 77311-401-33LF sits at the upper end of the BERGSTIK single-row 0.100\" pitch range; the pitch and footprint are shared across the series, so match the position count to circuit count.","metaTitle":"77311-401-33LF BERGSTIK Header, 33-Pos, 0.100\" Pitch","metaDescription":"Molex BERGSTIK 77311-401-33LF: 33-position single-row male pin header, 0.100\" (2.54mm) pitch, 3A per contact, tin-plated phosphor bronze contacts","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®","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":"77311","Insulation Material":"Thermoplastic","Number of Positions":"33","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.095\\\" (2.41mm)","Current Rating (Amps)":"3A per Contact","Operating Temperature":"-65°C~125°C","Mated Stacking Heights":"-","Overall Contact Length":"0.425\\\" (10.80mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.230\\\" (5.84mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"78.7µin (2.00µm)","Contact Finish Thickness - Mating":"78.7µin (2.00µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2615","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/b7619af15a6f914d234facab530ef078.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/77311-401-33LF/alternatives.json"},"ai":{"faq":[{"question":"What is the board-to-board style of the 77311-401-33LF?","answer":"The connector is listed as a Board to Board style, meaning it mates directly with a matching receptacle on another PCB."},{"question":"Is the 77311-401-33LF RoHS and UL compliant?","answer":"RoHS compliance is standard for the BERGSTIK series, though the specific certificate should be confirmed per the BOM requirement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/77311-401-33LF","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/77311-401-33LF 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}}