{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"284518-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"284518-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/284518-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/284518-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP Connectors Buchanan 284518-4, Header, Male Pins, Shrouded (2 Side), 4 positions, 1 level, 0.150\" (3.81mm) pitch, through-hole solder, vertical orientation, 11 A, 300 V, UL94 V-0 green PA66 housing, tin-plated phosphor bronze contacts.","salesMarkdown":"The 284518-4 is a 4-position, single-level, shrouded male pin header from the TE Buchanan series. It's the board-side half of a 3.81mm-pitch terminal block interface — mates with the corresponding Buchanan plug that carries the field wiring. Vertical through-hole orientation with 0.134\" (3.40mm) solder tails — the pins sit perpendicular to the board, which simplifies routing when the mating plug enters from above. The two-side shroud guides the plug and protects the pins during blind mating in a panel or junction box. 3.81mm pitch is the centre-to-centre spacing between adjacent pins. That's the dimension you need for the PCB layout — the footprint is 4 holes on a 3.81mm grid, with the solder tails spaced accordingly. It also sets the minimum creepage distance between circuits at the board surface. 11 A per contact at 300 V is the UL-rated maximum. In practice, derate if the ambient temperature exceeds the 110°C upper limit of the operating range, or if multiple adjacent circuits are fully loaded — the housing material's thermal conductivity limits the total heat dissipation. ## Mounting and termination details for the board builder Through-hole solder termination: the 0.134\" (3.40mm) tail length is designed for standard 1.6mm PCBs — the tail protrudes enough for a reliable solder fillet on the bottom side without being so long that it interferes with components on the opposite face. The header is inserted from the top and wave-soldered or hand-soldered. That's the z-height budget you need above the PCB — the mating plug adds its own height on top of that. The green PA66 housing is keyed by the shroud geometry; there's no polarisation key on the side, so orientation is set by the PCB footprint. Interlocking (Side) feature means multiple headers can be ganged side-by-side to create a wider multi-position assembly — useful when you need more than 4 circuits in the same pitch but want to keep the PCB layout modular. ## Lifecycle and sourcing — active production, no cross-reference ROHS3 compliant, which covers the current EU RoHS exemption list. No official pin-compatible replacement or cross-reference exists within the Buchanan series — this is the part number for the 4-position vertical shrouded header at 3.81mm pitch.","metaTitle":"284518-4 TE Connectivity Buchanan Header, 4 Pos","metaDescription":"284518-4 TE Connectivity AMP Connectors Buchanan header, 4 positions, 3.81mm pitch, 11A, 300V, through-hole, shrouded, active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Header Plugs & Sockets"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Type":"Header, Male Pins, Shrouded (2 Side)","Color":"Green","Pitch":"0.150\\\" (3.81mm)","Series":"Buchanan","Package":"Bulk","Features":"Interlocking (Side)","Screw Size":"-","Current - UL":"11 A","Voltage - UL":"300 V","Current - IEC":"-","Mounting Type":"Through Hole","Product Status":"Active","Torque - Screw":"-","Plug Wire Entry":"-","lifecycle_stage":"unknown","Contact Material":"Phosphor Bronze","Housing Material":"Polyamide (PA66), Nylon 6/6","Number of Levels":"1","Insulation Height":"0.362\\\" (9.20mm)","Termination Style":"Solder","Wire Strip Length":"-","Header Orientation":"Vertical","Ingress Protection":"-","Base Product Number":"284518","Contact Tail Length":"0.134\\\" (3.40mm)","Number of Positions":"4","Positions Per Level":"4","Contact Mating Finish":"Tin","Operating Temperature":"-40°C ~ 110°C","Wire Gauge or Range - AWG":"-","Wire Gauge or Range - mm²":"-","Material Flammability Rating":"UL94 V-0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1800","priceTiers":[{"qty":1,"price":"$1.18000","currency":"USD"},{"qty":10,"price":"$1.10400","currency":"USD"},{"qty":25,"price":"$1.06320","currency":"USD"},{"qty":50,"price":"$1.05320","currency":"USD"},{"qty":100,"price":"$0.95040","currency":"USD"},{"qty":250,"price":"$0.91956","currency":"USD"},{"qty":500,"price":"$0.83736","currency":"USD"},{"qty":1000,"price":"$0.75003","currency":"USD"},{"qty":5000,"price":"$0.67811","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/563c6f25eaad2547c88ab1bae0dc0946.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/284518-4/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of 284518-4?","answer":"The pitch is 0.150\" (3.81mm) centre-to-centre between adjacent pin positions."},{"question":"Is 284518-4 through hole or surface mount?","answer":"Through-hole."},{"question":"Where can I buy the 284518-4 terminal block header?","answer":"Available through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/284518-4","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/te-connectivity-amp-connectors/284518-4 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}}