{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MOC211M","brand":"onsemi","brandSlug":"onsemi","productSlug":"MOC211M","canonicalUrl":"https://icboms.com/onsemi/MOC211M","factsUrl":"https://icboms.com/api/mcp/products/MOC211M","rawCanonicalId":null},"summary":{"shortDescription":"onsemi MOC211M, single-channel optoisolator, 2500Vrms isolation, transistor with base output, 8-SOIC surface-mount package, DC input.","salesMarkdown":"## What the MOC211M isolation and CTR mean for your BOM The MOC211M is a single-channel optoisolator from onsemi with a 2500Vrms isolation rating, enough for basic galvanic isolation in industrial controls, PLC I/O modules, and power-supply feedback loops where the primary-to-secondary voltage is under 250 V peak. Its current transfer ratio (CTR) is guaranteed at a minimum of 20% when the LED is driven with 10 mA forward current — that means for every 10 mA into the LED, the output transistor can sink at least 2 mA at the collector, which sets the pull-up resistor value for a clean logic-level swing. The output is a phototransistor with the base brought out to a pin, giving you the option to add a base-emitter resistor for faster turn-off or to bias the transistor for improved linearity in analog isolation applications. ## Switching speed and output drive capability Typical turn-on time is 7.5 µs and turn-off is 5.7 µs, with rise/fall times of 3.2 µs and 4.7 µs respectively — this part is suited for 10–100 kHz switching signals, not for high-speed data links. The output transistor can handle up to 30 V at the collector and sink 150 mA continuous, which is enough to drive a small relay coil, a logic input, or a low-power LED indicator directly without a buffer transistor.","metaTitle":"MOC211M Optoisolator – onsemi 2500Vrms, 8-SOIC, Active","metaDescription":"onsemi MOC211M optoisolator: 2500Vrms isolation, transistor with base output, 8-SOIC surface mount. Active production, 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 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":"2500Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-40°C ~ 100°C","Rise / Fall Time (Typ)":"3.2µs, 4.7µs","Voltage - Output (Max)":"30V","Supplier Device Package":"8-SOIC","Current - Output / Channel":"150mA","Current Transfer Ratio (Min)":"20% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.15V","Turn On / Turn Off Time (Typ)":"7.5µs, 5.7µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.77","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.77000","currency":"USD"},{"qty":10,"price":"$0.49900","currency":"USD"},{"qty":100,"price":"$0.32700","currency":"USD"},{"qty":1000,"price":"$0.25816","currency":"USD"},{"qty":2000,"price":"$0.24095","currency":"USD"},{"qty":5000,"price":"$0.23234","currency":"USD"},{"qty":10000,"price":"$0.22890","currency":"USD"},{"qty":25000,"price":"$0.22374","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e0dbf213b582983d9de74b9abeaa1477.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) of the MOC211M?","answer":"The minimum CTR is 20% at a forward current of 10 mA. Typical CTR is higher, but the 20% floor is the number to use for worst-case LED drive and pull-up resistor calculations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/MOC211M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/MOC211M when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:08:55.398Z","lastPublished":"2026-07-17T20:08:55.398Z","indexable":true}}