{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IL211AT","brand":"Vishay","brandSlug":"vishay","productSlug":"IL211AT","canonicalUrl":"https://icboms.com/vishay/IL211AT","factsUrl":"https://icboms.com/api/mcp/products/IL211AT","rawCanonicalId":null},"summary":{"shortDescription":"Vishay IL211AT optoisolator, DC input, transistor with base output, 1-channel, 4000 Vrms isolation, 8-SOIC surface mount package, -55°C to 100°C.","salesMarkdown":"The IL211AT comes in an 8-SOIC package (3.90 mm body width) — a standard footprint for optocouplers in this isolation class. The surface-mount body sits low enough that the 4 kVrms creepage distance is maintained by the package moulding, not an external slot. Rated for -55 °C to 100 °C operating ambient, the part covers industrial temperature bands — motor-drive control feedback and PLC digital inputs both stay within the envelope. ## Switching speed and transfer ratio Turn-on and turn-off times are both 3 µs typical — this sets the maximum data rate at roughly 160 kHz in a saturated-switch configuration. For a 24 VDC PLC input with a 10 mA LED drive, the 20% minimum CTR at 10 mA guarantees the output transistor pulls the collector voltage below the logic threshold within that window. The transistor-with-base output lets you tailor the switching threshold with an external base resistor — useful when the input current varies across the 60 mA absolute maximum forward current.","metaTitle":"Vishay IL211AT Optoisolator, 4 kVrms, Transistor with Base","metaDescription":"Vishay IL211AT optoisolator: 4 kVrms isolation, 20% min CTR at 10 mA, 3 µs switching, -55 to 100 °C. Active, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"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)":"30V","Supplier Device Package":"8-SOIC","Current Transfer Ratio (Min)":"20% @ 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":"$1.08","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/dec3ac5bb450dd2eb65658160e2d488f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IL211AT/alternatives.json"},"ai":{"faq":[{"question":"How can I order the IL211AT or request a quote?","answer":"The IL211AT is sourced to order through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/IL211AT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/IL211AT 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}}