{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY17F3SM","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY17F3SM","canonicalUrl":"https://icboms.com/onsemi/CNY17F3SM","factsUrl":"https://icboms.com/api/mcp/products/CNY17F3SM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY17F3SM, single-channel DC-input transistor-output optocoupler, 4170 Vrms isolation, 6-SMD Gull Wing package, CTR 100-200% at 10 mA, 70 V output max, -40°C to 100°C.","salesMarkdown":"## Isolation barrier and switching performance The CNY17F3SM is a single-channel optocoupler from onsemi that provides 4170 Vrms galvanic isolation between a DC input LED and a phototransistor output. This isolation rating suits it for reinforced insulation in mains-referenced circuits — think industrial PLC digital inputs, motor-drive status feedback, or AC-line zero-cross detection where the control side must stay isolated from the field side. Switching is on the slower side: typ rise/fall times of 4 µs and 3.5 µs, with turn-on/turn-off at 2 µs and 3 µs. That keeps the part in low-speed signal domains — 50/60 Hz line sync, relay coil drive, or fault flag transmission — rather than high-speed data links. The current transfer ratio is binned: 100% min, 200% max at IF = 10 mA. That means with 10 mA forward current the output transistor can sink at least 10 mA into the load, giving a predictable gain for saturating the output into a logic input or relay coil. ## Output ratings and temperature range Output transistor is rated for 70 V collector-emitter max and 50 mA continuous output current, with a Vce(sat) ceiling of 400 mV. The forward voltage is 1.35 V typ at If=10 mA, and the absolute max forward current is 60 mA — typical drive from a 3.3 V GPIO through a 220 Ω series resistor lands around 9-10 mA, right in the CTR test condition sweet spot. It is ROHS3 compliant. The package is a 6-SMD Gull Wing (6-SMD, Gull Wing), which is a standard surface-mount footprint for optocouplers — the gull-wing leads ease visual solder-joint inspection. The base product number is CNY17F3, and the 'SM' suffix denotes the surface-mount gull-wing package variant.","metaTitle":"CNY17F3SM Optoisolator, 4170Vrms, Transistor Output","metaDescription":"onsemi CNY17F3SM: single-channel DC-input transistor-output optocoupler, 4170Vrms isolation, CTR 100-200% at 10 mA, 70V Vce max, -40°C to 100°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"CNY17F3","Voltage - Isolation":"4170Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-40°C~100°C","Rise / Fall Time (Typ)":"4µs, 3.5µs (Max)","Voltage - Output (Max)":"70V","Supplier Device Package":"6-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"200% @ 10mA","Current Transfer Ratio (Min)":"100% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.35V","Turn On / Turn Off Time (Typ)":"2µs, 3µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6500","priceTiers":[{"qty":1,"price":"$0.65000","currency":"USD"},{"qty":10,"price":"$0.42400","currency":"USD"},{"qty":100,"price":"$0.28080","currency":"USD"},{"qty":1000,"price":"$0.21678","currency":"USD"},{"qty":2000,"price":"$0.19589","currency":"USD"},{"qty":5000,"price":"$0.18283","currency":"USD"},{"qty":10000,"price":"$0.17630","currency":"USD"},{"qty":25000,"price":"$0.17369","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dbff72ad709f03fb6695b1cadd7ed9fe.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY17F3SM/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between CNY17F3SM and CNY17F2SM?","answer":"The two share the same 4170 Vrms isolation, package, and temperature range. The difference is the current transfer ratio (CTR) bin: CNY17F3SM specifies 100-200% at 10 mA, while the CNY17F2SM typically has a lower CTR range (e.g., 63-125% at 10 mA). If your design requires a tighter or higher CTR window, the F3 bin gives more headroom for driving a higher load current from the same LED current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY17F3SM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY17F3SM 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}}