{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY17F3S","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY17F3S","canonicalUrl":"https://icboms.com/onsemi/CNY17F3S","factsUrl":"https://icboms.com/api/mcp/products/CNY17F3S","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY17F3S optocoupler, 1-channel, DC input, transistor output, 5300Vrms isolation, 100-200% CTR, 6-SMD Gull Wing package, Tube.","salesMarkdown":"## Isolation and CTR — the two numbers that decide the fit The onsemi CNY17F3S is a 1-channel phototransistor optocoupler in a 6-SMD Gull Wing package. Its 5300 Vrms isolation rating means it can safely separate a 400 VAC motor-drive control signal from the 24 VDC PLC input side — the reinforced insulation margin covers the transient overvoltage category. ## Switching speed and drive limits Rise and fall times are 1 µs and 2 µs typical, with turn-on/turn-off times of 2 µs and 3 µs. This limits the practical switching frequency to a few tens of kHz — fine for reading a 24 VDC digital input or driving a gate driver at a few kHz, but too slow for a high-frequency SMPS feedback loop. The output can sink 50 mA continuous at up to 70 V, and the Vce(sat) is clamped at 300 mV max, keeping the logic-low level well below the 0.8 V threshold of a 5 V TTL input. ## Lifecycle reality — obsolete, but sourced onsemi lists the CNY17F3S as Obsolete. The operating temperature range of -55°C to 100°C covers industrial and most automotive under-hood environments, so a last-time buy for a long-life product is viable if the board spin is not an option.","metaTitle":"onsemi CNY17F3S Optoisolator, 5300Vrms, 6-SMD Gull Wing","metaDescription":"onsemi CNY17F3S optocoupler, 5300Vrms isolation, 100-200% CTR at 10mA. Obsolete — sourced to order against RFQ via independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"CNY17","Voltage - Isolation":"5300Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-55°C~100°C","Rise / Fall Time (Typ)":"1µs, 2µs","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)":"100 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a47ea3b51cbb13a83c8d83e21910005.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY17F3S/alternatives.json"},"ai":{"faq":[{"question":"What is the CTR range of the CNY17F3S?","answer":"The current transfer ratio is binned to 100-200% at a forward current of 10 mA. This means at 10 mA LED drive, the output transistor can sink 10-20 mA, which is enough to pull a 5 V logic input low through a 2.2 kΩ pull-up resistor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY17F3S","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY17F3S when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:30:36.642Z","lastPublished":"2026-07-21T06:30:36.642Z","indexable":true}}