{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCDT1124","brand":"Vishay","brandSlug":"vishay","productSlug":"TCDT1124","canonicalUrl":"https://icboms.com/vishay/TCDT1124","factsUrl":"https://icboms.com/api/mcp/products/TCDT1124","rawCanonicalId":null},"summary":{"shortDescription":"Optoisolator, 5000Vrms, 1 Channel, DC Input, Transistor Output, 6-DIP (0.300\", 7.62mm), Through Hole, -55°C to 100°C, 160-320% CTR at 10mA, 70V/50mA output.","salesMarkdown":"The TCDT1124 is a single-channel optocoupler from Vishay (or equivalent source) in a 6-DIP through-hole package, built around a DC-input IR LED and a phototransistor output. Its headline rating is 5000Vrms of galvanic isolation, which covers reinforced insulation requirements for mains-connected power supplies, motor drives, and industrial PLC I/O modules. The 160% to 320% current transfer ratio at 10mA forward current gives you a solid saturation margin across the -55°C to 100°C operating range — useful when driving logic inputs or low-side loads without an extra gain stage. ## CTR spread and output drive — sizing the load With a minimum CTR of 160% at 10mA If, the phototransistor can deliver at least 16mA into the output load. The output is rated for 70V collector-emitter and 50mA continuous per channel, with a Vce(sat) of 300mV max — clean logic-level drive for 3.3V or 5V rails. Rise and fall times are 4µs and 4.7µs typical, which limits switching to low-speed signals (DC state detection, relay coil drive, isolated fault flags) rather than high-speed data.","metaTitle":"TCDT1124 Optoisolator, 5000Vrms, 160-320% CTR, 6-DIP","metaDescription":"TCDT1124 optocoupler: 5000Vrms isolation, 160-320% CTR at 10mA, 70V/50mA output, -55°C to 100°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Through Hole","Package / Case":"6-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"4µs, 4.7µs","Voltage - Output (Max)":"70V","Supplier Device Package":"6-DIP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"320% @ 10mA","Current Transfer Ratio (Min)":"160% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.25V","Turn On / Turn Off Time (Typ)":"4µs, 4.7µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.70000","currency":"USD"},{"qty":10,"price":"$0.46300","currency":"USD"},{"qty":100,"price":"$0.30620","currency":"USD"},{"qty":1000,"price":"$0.23640","currency":"USD"},{"qty":2000,"price":"$0.21362","currency":"USD"},{"qty":5000,"price":"$0.19937","currency":"USD"},{"qty":10000,"price":"$0.19225","currency":"USD"},{"qty":25000,"price":"$0.18941","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e5f645937d708017b77a5e40035f0d76.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the current transfer ratio (CTR) values for TCDT1124?","answer":"The CTR is specified as 160% minimum and 320% maximum, both measured at a forward current of 10mA. This range ensures the phototransistor saturates reliably across temperature and LED aging."},{"question":"Is TCDT1124 RoHS compliant?","answer":"Yes, the TCDT1124 is listed as ROHS3 compliant, meaning it meets the latest RoHS directive without exemptions for lead in solder or other restricted substances."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/TCDT1124","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/TCDT1124 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}