{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1540-4","brand":"Keystone Electronics","brandSlug":"keystone-electronics","productSlug":"1540-4","canonicalUrl":"https://icsourcedirect.com/keystone-electronics/1540-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/1540-4","rawCanonicalId":null},"summary":{"shortDescription":"Keystone Electronics turret terminal, order code 1540-4, single end hollow, tin contact finish, 0.433\" (11.00 mm) overall length, staking flare termination, through-hole mounting, bulk package.","salesMarkdown":"## Single end hollow turret terminal The 1540-4 is a single end hollow turret terminal from Keystone Electronics, 0.433\" (11.00 mm) overall length, tin-plated brass, staking flare termination for through-hole mounting. Above-board height is 0.266\" (6.76 mm); the 0.156\" (3.96 mm) flange diameter and 0.094\" (2.39 mm) mounting hole diameter define the board footprint.","metaTitle":"Keystone 1540-4 Hollow Turret Terminal, Tin, 0.433\" Overall","metaDescription":"Keystone Electronics 1540-4 turret terminal: single end hollow, tin finish, 0.433\" overall length, staking flare termination, bulk packaging.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Turret Terminals"],"specifications":{"Mfr":"Keystone Electronics","Series":"-","Package":"Bulk","Insulation":"Non-Insulated","Termination":"Staking Flare","Mounting Type":"Through Hole","Terminal Type":"Single End, Hollow","Contact Finish":"Tin","Product Status":"Active","Board Thickness":"0.125\\\" (3.18mm)","Flange Diameter":"0.156\\\" (3.96mm)","Staking Side ID":"-","Staking Side OD":"0.090\\\" (2.29mm)","lifecycle_stage":"unknown","Contact Material":"Brass","Insulation Color":"-","Length - Overall":"0.433\\\" (11.00mm)","Number of Turrets":"Single","Length - Above Board":"0.266\\\" (6.76mm)","Length - Below Flange":"0.167\\\" (4.24mm)","Material - Insulation":"-","Diameter - Turret Head":"0.120\\\" (3.05mm)","Mounting Hole Diameter":"0.094\\\" (2.39mm)","Contact Finish Thickness":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5500","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.55000","currency":"USD"},{"qty":25,"price":"$0.47000","currency":"USD"},{"qty":100,"price":"$0.46010","currency":"USD"},{"qty":250,"price":"$0.43080","currency":"USD"},{"qty":500,"price":"$0.38200","currency":"USD"},{"qty":1000,"price":"$0.28114","currency":"USD"},{"qty":2500,"price":"$0.25558","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/31efa51c7da52d686e9bebd7f9a9582d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation is available for the 1540-4?","answer":"The 1540-4 is RoHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/keystone-electronics/1540-4","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/keystone-electronics/1540-4 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}}