{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCDT1122G","brand":"Vishay","brandSlug":"vishay","productSlug":"TCDT1122G","canonicalUrl":"https://icboms.com/vishay/TCDT1122G","factsUrl":"https://icboms.com/api/mcp/products/TCDT1122G","rawCanonicalId":null},"summary":{"shortDescription":"Vishay TCDT1122G, single-channel transistor-output optocoupler, 5000Vrms isolation, 63% to 125% CTR at 10mA, 70V Vce max, 50mA output, -55 to 100°C, 6-DIP through-hole package, Tube.","salesMarkdown":"## Single-channel optocoupler with 5000Vrms isolation The Vishay TCDT1122G is a single-channel, transistor-output optocoupler in a 6-DIP through-hole package. It provides galvanic isolation rated at 5000Vrms, with a guaranteed current transfer ratio (CTR) between 63% and 125% at a forward current of 10mA. The output transistor can handle up to 70V collector-emitter voltage and 50mA continuous current, with a maximum saturation voltage of 300mV. ## CTR range and LED drive design The 63% to 125% CTR bin at 10mA If gives the designer a predictable gain window for the optocoupler. A minimum CTR of 63% means the output transistor will sink at least 6.3mA collector current with 10mA LED drive, which is enough to pull a logic input low or drive a small relay coil. The 125% maximum prevents overdrive saturation issues in feedback loops. This tight binning reduces the need for external gain trimming across production lots. ## Output ratings and switching capability With a 70V Vce(max) and 50mA continuous output current, the TCDT1122G can switch industrial-level signals directly — 24V PLC inputs, 12V logic rails, or low-power DC loads. The 300mV Vce(sat) at rated current keeps power dissipation low in the output stage. The DC input type means it is designed for steady-state or low-frequency switching, not high-speed data transmission. ## Package and mounting Housed in a standard 6-DIP package with 0.400-inch (10.16mm) pin spacing, the TCDT1122G is a through-hole device suited for prototyping, low-volume production, and rework-friendly designs.","metaTitle":"TCDT1122G Optoisolator, 5000Vrms, 63-125% CTR, 6-DIP","metaDescription":"TCDT1122G single-channel transistor-output optocoupler, 5000Vrms isolation, 63-125% CTR at 10mA, 70V Vce max, -55 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 (0.400\\\", 10.16mm)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-55°C ~ 100°C","Voltage - Output (Max)":"70V","Supplier Device Package":"6-DIP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"125% @ 10mA","Current Transfer Ratio (Min)":"63% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.25V","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.72000","currency":"USD"},{"qty":10,"price":"$0.47200","currency":"USD"},{"qty":100,"price":"$0.31220","currency":"USD"},{"qty":1000,"price":"$0.24108","currency":"USD"},{"qty":2000,"price":"$0.21785","currency":"USD"},{"qty":5000,"price":"$0.20332","currency":"USD"},{"qty":10000,"price":"$0.19606","currency":"USD"},{"qty":25000,"price":"$0.19316","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e5f645937d708017b77a5e40035f0d76.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio of TCDT1122G?","answer":"The current transfer ratio (CTR) is specified as 63% minimum and 125% maximum, measured at a forward current of 10mA."},{"question":"Is TCDT1122G RoHS compliant?","answer":"Yes, the TCDT1122G is ROHS3 compliant, meaning it meets the latest EU restriction-of-hazardous-substances directive."},{"question":"What is the maximum Vce for TCDT1122G?","answer":"The maximum collector-emitter voltage (Vce) is 70V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/TCDT1122G","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/TCDT1122G 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}}