{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STX-3120-3B-284C","brand":"Kycon, Inc.","brandSlug":"kycon-inc","productSlug":"STX-3120-3B-284C","canonicalUrl":"https://icsourcedirect.com/kycon-inc/STX-3120-3B-284C","factsUrl":"https://icsourcedirect.com/api/mcp/products/STX-3120-3B-284C","rawCanonicalId":null},"summary":{"shortDescription":"Kycon STX-3120 phone jack, order code STX-3120-3B-284C, female, 3 conductors (TRS), 3.50mm industry-recognized mating diameter, through-hole right-angle, kinked pin termination, tin-plated contacts, unshielded, bulk.","salesMarkdown":"## 3.50 mm TRS jack, board-guide equipped The STX-3120-3B-284C is a 3-conductor (TRS) female phone jack from Kycon's STX-3120 series, accepting standard 3.50 mm (1/8\") mini plugs. It mounts through-hole right-angle with kinked pins for solder retention and includes a board guide for alignment during assembly. ## Tin-plated contacts, no internal switch Contact plating is tin on brass and phosphor bronze — suited for signal-level audio duty where mating cycles are moderate. The jack contains no internal switch, so the circuit path is always closed through the tip, ring, and sleeve when a plug is inserted.","metaTitle":"Kycon STX-3120-3B-284C Phone Jack, 3.50mm, Blue","metaDescription":"Kycon STX-3120-3B-284C female phone jack, 3.50mm mating diameter, 3 conductors, through-hole right-angle, tin-plated contacts, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"STX-3120","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["USB, Type-C & HDMI Connectors","Audio Connectors"],"specifications":{"Mfr":"Kycon, Inc.","Gender":"Female","Series":"STX-3120","Package":"Bulk","Features":"Board Guide","Includes":"-","Shielding":"Unshielded","Body Color":"Blue","Termination":"Kinked Pin","Thread Size":"-","Signal Lines":"Stereo (3 Conductor, TRS)","Body Material":"-","Cable Opening":"-","Mounting Type":"Through Hole, Right Angle","Connector Type":"Phone Jack","Product Status":"Active","Actual Diameter":"0.142\\\" (3.60mm)","Panel Hole Size":"-","Voltage - Rated":"-","lifecycle_stage":"unknown","Contact Material":"Brass, Phosphor Bronze","Housing Material":"Thermoplastic, Glass Filled","Insulation Color":"-","Internal Switch(s)":"Does Not Contain Switch","Base Product Number":"STX","Mating Length/Depth":"-","Operating Temperature":"-25°C ~ 85°C","Contact Material - Plating":"Tin","Number of Positions/Contacts":"3 Conductors, 3 Contacts","Industry Recognized Mating Diameter":"3.50mm (0.141\\\", 1/8\\\", Mini Plug) - Headphone"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0900","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.09000","currency":"USD"},{"qty":10,"price":"$0.92100","currency":"USD"},{"qty":25,"price":"$0.88280","currency":"USD"},{"qty":50,"price":"$0.86420","currency":"USD"},{"qty":100,"price":"$0.82660","currency":"USD"},{"qty":250,"price":"$0.75144","currency":"USD"},{"qty":500,"price":"$0.67630","currency":"USD"},{"qty":1000,"price":"$0.60115","currency":"USD"},{"qty":2500,"price":"$0.54479","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f0aa8e967271c7b520f04f19bf052434.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mating diameter of the STX-3120-3B-284C?","answer":"The industry-recognized mating diameter is 3.50 mm (0.141\", 1/8\", mini plug)."},{"question":"Does the STX-3120-3B-284C contain an internal switch?","answer":"No — the jack does not contain a switch, so the signal path is always connected through the tip, ring, and sleeve contacts."},{"question":"Is the STX-3120-3B-284C ROHS compliant?","answer":"Yes, it is ROHS3 compliant per the manufacturer's declaration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/kycon-inc/STX-3120-3B-284C","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/kycon-inc/STX-3120-3B-284C 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}}