{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IL206AT","brand":"Vishay","brandSlug":"vishay","productSlug":"IL206AT","canonicalUrl":"https://icboms.com/vishay/IL206AT","factsUrl":"https://icboms.com/api/mcp/products/IL206AT","rawCanonicalId":null},"summary":{"shortDescription":"IL206AT, Vishay, Optocoupler, 1-Channel DC Input, Transistor with Base Output, 4000Vrms Isolation, 63-125% CTR, 8-SOIC, -55 to 100°C.","salesMarkdown":"The IL206AT from Vishay is a single-channel optocoupler with a phototransistor output that includes a base terminal, packaged in an 8-SOIC surface-mount package. It provides 4000Vrms galvanic isolation between input and output, with a DC input type and a transistor-with-base output rated to 70V. This part is commonly used for signal isolation in industrial controls, PLC digital inputs, motor drive feedback, and isolated DC-DC converter feedback loops where the base pin allows external bias or speed-up networks. ## Current transfer ratio — what the 63%–125% range means for your BOM The IL206AT guarantees a current transfer ratio between 63% and 125% at a forward current of 10 mA. That spread matters when you size the input LED resistor: at the low end (63% CTR), the output transistor needs about 6.3 mA of collector current to saturate cleanly; at the high end (125%), it can deliver 12.5 mA. A design that must work across the full CTR binning range should budget for the minimum, which sets the pull-up resistor and logic-threshold margin. The 400mV Vce saturation at max drive keeps the output drop low enough for 3.3V and 5V logic interfaces. ## Switching speed and isolation — 3 µs and 4000Vrms Typical turn-on and turn-off times are both 3 µs. That limits this part to applications where the signal rate is below roughly 100 kHz — fine for 50/60 Hz line isolation, DC sensing, or slow digital status signals. The 4000Vrms isolation rating supports reinforced insulation requirements in many industrial and medical power-supply designs. If you need faster switching (sub-microsecond), look at digital isolators or optocouplers with logic outputs; if you just need to pass a relay-contact status or a temperature-sensor pulse, the IL206AT is a clean fit. Surface-mount assembly keeps the pick-and-place cost low.","metaTitle":"IL206AT Optocoupler, 4000Vrms, 8-SOIC, Active","metaDescription":"IL206AT optocoupler: 4000Vrms isolation, 63-125% CTR at 10mA, transistor with base output, -55 to 100°C, 8-SOIC. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"DC","Output Type":"Transistor with Base","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"4000Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-55°C ~ 100°C","Voltage - Output (Max)":"70V","Supplier Device Package":"8-SOIC","Current Transfer Ratio (Max)":"125% @ 10mA","Current Transfer Ratio (Min)":"63% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.3V","Turn On / Turn Off Time (Typ)":"3µs, 3µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.06","priceTiers":[{"qty":1,"price":"$1.08000","currency":"USD"},{"qty":10,"price":"$0.70200","currency":"USD"},{"qty":100,"price":"$0.45990","currency":"USD"},{"qty":1000,"price":"$0.36308","currency":"USD"},{"qty":2000,"price":"$0.33887","currency":"USD"},{"qty":6000,"price":"$0.32677","currency":"USD"},{"qty":10000,"price":"$0.32193","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/49fb652eaf2ef7146c0efab1199a7a59.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IL206AT/alternatives.json"},"ai":{"faq":[{"question":"What is the current transfer ratio of IL206AT?","answer":"The IL206AT has a current transfer ratio range of 63% to 125% at a forward current of 10 mA. This is the typical test condition; the min/max values guarantee the spread across temperature and production bins."},{"question":"Is IL206AT lead-free?","answer":"Yes, the IL206AT is ROHS3 compliant, which means it is lead-free and meets the latest EU RoHS directive restrictions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/IL206AT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/IL206AT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}