{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SP-3540A","brand":"CUI Devices","brandSlug":"cui-devices","productSlug":"SP-3540A","canonicalUrl":"https://icsourcedirect.com/cui-devices/SP-3540A","factsUrl":"https://icsourcedirect.com/api/mcp/products/SP-3540A","rawCanonicalId":null},"summary":{"shortDescription":"CUI Devices audio plug, SP-3540A, male, 4 conductors (TRRS), 3.50 mm industry mating diameter, 1 A, 12 VDC, nickel-plated contacts, free-hanging, solder termination.","salesMarkdown":"## 3.5 mm TRRS plug with nickel contacts The SP-3540A is CUI Devices' 4-conductor (TRRS) 3.50 mm male phone plug, free-hanging with solder termination and nickel-plated brass contacts. Rated 1 A at 12 VDC, the plug carries stereo audio plus a microphone channel on the TRRS tip-ring-ring-sleeve arrangement. ## Housing and cable-entry dimensions The ABS housing is black with a brass body and a 0.217\" (5.50 mm) cable opening; the mating length is 0.551\" (14.00 mm). Operating temperature spans -25°C to 70°C; the plug includes a cover and ships in a bag with two pieces — one connector, one cover.","metaTitle":"SP-3540A CUI Devices 3.5mm Audio Plug, 4 Conductor, Active","metaDescription":"CUI Devices SP-3540A 3.5mm audio plug, male, 4 conductors (TRRS), 1 A, 12 VDC, nickel-plated contacts, free-hanging solder termination, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["USB, Type-C & HDMI Connectors","Audio Connectors"],"specifications":{"Mfr":"CUI Devices","Gender":"Male","Series":"-","Package":"Bag","Features":"Cover","Includes":"2 pcs - 1 Connector, 1 Cover","Shielding":"Unshielded","Body Color":"Silver, Black","Termination":"Solder","Thread Size":"-","Signal Lines":"Stereo (4 Conductor, TRRS)","Body Material":"Brass","Cable Opening":"0.217\\\" (5.50mm)","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Phone Plug","Product Status":"Active","Actual Diameter":"0.126\\\" (3.20mm)","Panel Hole Size":"-","Voltage - Rated":"12VDC","lifecycle_stage":"unknown","Contact Material":"Brass","Housing Material":"Acrylonitrile Butadiene Styrene (ABS)","Insulation Color":"Black","Internal Switch(s)":"Does Not Contain Switch","Mating Length/Depth":"0.551\\\" (14.00mm)","Current Rating (Amps)":"1 A","Operating Temperature":"-25°C~70°C","Contact Material - Plating":"Nickel","Number of Positions/Contacts":"4 Conductors, 4 Contacts","Industry Recognized Mating Diameter":"3.50mm (0.141\\\", 1/8\\\", Mini Plug) - Headphone"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3100","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.31000","currency":"USD"},{"qty":10,"price":"$2.01000","currency":"USD"},{"qty":25,"price":"$1.92480","currency":"USD"},{"qty":50,"price":"$1.88200","currency":"USD"},{"qty":100,"price":"$1.79650","currency":"USD"},{"qty":250,"price":"$1.62540","currency":"USD"},{"qty":500,"price":"$1.49708","currency":"USD"},{"qty":1000,"price":"$1.28320","currency":"USD"},{"qty":2500,"price":"$1.19766","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/4f8910d72affec2e8acf5ddbd8508ff6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does CUI Devices provide for SP-3540A?","answer":"The SP-3540A is ROHS3 compliant per CUI Devices."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/cui-devices/SP-3540A","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/cui-devices/SP-3540A 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}}