{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY171SR2VM","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY171SR2VM","canonicalUrl":"https://icboms.com/onsemi/CNY171SR2VM","factsUrl":"https://icboms.com/api/mcp/products/CNY171SR2VM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY171SR2VM, single-channel DC-input optoisolator, transistor with base output, 4170Vrms isolation, 40%–80% CTR at 10 mA, 70 V output, 6-SMD Gull Wing package, -40°C to 100°C.","salesMarkdown":"## Galvanic barrier for industrial signal isolation The CNY171SR2VM is a single-channel optoisolator from onsemi that uses a DC-input LED and a phototransistor with base access to provide 4170Vrms of galvanic isolation between input and output. This isolation rating suits safety barriers in motor drives, switch-mode power supply feedback loops, and PLC digital input modules where the primary and secondary sides must not share a ground path. The transistor-with-base output allows the designer to bias the base for faster switching or to use the base as a photodiode for analog feedback — a flexibility not available in Darlington or simple phototransistor optos. ## CTR range and switching timing for BOM sizing Current transfer ratio is specified at 40% minimum and 80% maximum at If=10 mA. The 2:1 spread is tighter than many general-purpose optos, which simplifies worst-case pull-up resistor calculations across temperature and aging. Turn-on time is 2 µs typical, turn-off 3 µs typical, with rise/fall times of 4 µs and 3.5 µs max respectively. For 10 kHz switching applications, the propagation delay adds about 5 µs of dead time — budget that in the controller timing if the opto is in a feedback or fault-signal path.","metaTitle":"CNY171SR2VM Optoisolator – 4170Vrms, Transistor Output","metaDescription":"onsemi CNY171SR2VM optoisolator: 4170Vrms isolation, 40-80% CTR at 10mA, 70V output, -40°C to 100°C. Active production, 6-SMD Gull Wing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Input Type":"DC","Output Type":"Transistor with Base","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"CNY171","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":"$0.7500","priceTiers":[{"qty":1,"price":"$0.75000","currency":"USD"},{"qty":10,"price":"$0.48600","currency":"USD"},{"qty":100,"price":"$0.31820","currency":"USD"},{"qty":1000,"price":"$0.25119","currency":"USD"},{"qty":2000,"price":"$0.23444","currency":"USD"},{"qty":5000,"price":"$0.22607","currency":"USD"},{"qty":10000,"price":"$0.22272","currency":"USD"},{"qty":25000,"price":"$0.21770","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dbff72ad709f03fb6695b1cadd7ed9fe.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY171SR2VM/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY171SR2VM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY171SR2VM 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}}