{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY17F1SR2M","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY17F1SR2M","canonicalUrl":"https://icboms.com/onsemi/CNY17F1SR2M","factsUrl":"https://icboms.com/api/mcp/products/CNY17F1SR2M","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY17F1SR2M single-channel transistor-output optocoupler, 4170 Vrms isolation, 40-80% CTR at 10 mA, 70 V output, 50 mA output current, 6-SMD gull wing package, surface mount.","salesMarkdown":"## Isolation and signal transfer The CNY17F1SR2M is a single-channel transistor-output optocoupler from onsemi, offering 4170 Vrms galvanic isolation between the DC input and the transistor output. This isolation rating suits it for breaking ground loops and protecting low-voltage logic from high-side transients in industrial control, power supply feedback, and PLC digital input interfaces. ## Current transfer ratio and switching The current transfer ratio (CTR) is specified at 40% minimum and 80% maximum, both measured at a forward current of 10 mA. This 2:1 CTR range means the output transistor can saturate reliably across the full operating temperature band without overdriving the LED — the designer sizes the pull-up resistor for the minimum CTR to guarantee logic-level swing at the receiver. Switching speed is characterised by a 2 µs turn-on and 3 µs turn-off time typical, with rise and fall times of 4 µs and 3.5 µs maximum respectively. These numbers place the part in the medium-speed class — adequate for 100 kHz isolated data links or PWM feedback loops, but not for high-speed digital isolation above 1 Mbps. ## Output ratings and temperature range The output transistor is rated for 70 V maximum collector-emitter voltage and 50 mA continuous output current per channel. This voltage headroom covers 48 V industrial rails with margin, and the 50 mA current drives small relays, logic inputs, or LED indicators directly without a buffer transistor. The gull-wing leads provide a visual solder-joint inspection point and moderate standoff for cleaning under the body.","metaTitle":"onsemi CNY17F1SR2M Optoisolator, 4170Vrms, 6-SMD","metaDescription":"onsemi CNY17F1SR2M single-channel transistor output optocoupler. 4170 Vrms isolation, 40-80% CTR at 10 mA, 70 V output, surface mount 6-SMD gull wing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","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":"CNY17F1","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)":"80% @ 10mA","Current Transfer Ratio (Min)":"40% @ 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":"$0.7100","priceTiers":[{"qty":1502,"price":"$0.20000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a14681f5e2b4cea8831806d9e8abec42.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY17F1SR2M/alternatives.json"},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) range for CNY17F1SR2M?","answer":"The CTR is specified at 40% minimum and 80% maximum, both measured at If = 10 mA. This 2:1 spread allows the designer to guarantee output saturation across temperature by sizing the collector load for the minimum CTR."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY17F1SR2M","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY17F1SR2M 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}}