{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY17F3W","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY17F3W","canonicalUrl":"https://icboms.com/onsemi/CNY17F3W","factsUrl":"https://icboms.com/api/mcp/products/CNY17F3W","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY17F3W optoisolator, 1-channel DC-input transistor output, 5300Vrms isolation, 100-200% CTR at 10mA, 6-DIP (0.400\", 10.16mm) through-hole package, tube.","salesMarkdown":"## Isolation barrier and CTR — the fit decision The onsemi CNY17F3W is a single-channel optoisolator in a 6-DIP through-hole package (0.400-inch lead spacing, 10.16 mm body width). The 5300 Vrms isolation rating qualifies it for reinforced insulation in mains-referenced circuits — the barrier withstands the 250 V working voltage common to industrial PSU feedback loops and PLC digital inputs without derating. Current transfer ratio is guaranteed between 100% and 200% at If = 10 mA. That means the output transistor saturates with 100 µA of base drive for every 100 µA of LED current — enough margin to drive a 5 V logic input through a 10 kΩ pull-up without an external buffer. The 300 mV Vce(sat) max ensures the output pulls below the TTL low threshold across the full 70 V collector rating. ## Switching speed and temperature envelope Typical turn-on time is 2 µs, turn-off 3 µs, with rise/fall of 1 µs / 2 µs. This places the useful data rate around 100 kbps — adequate for 24 VDC sensor polling, relay coil feedback, and isolated serial links where the bus edge rate is not the bottleneck. Above 250 kbps the propagation delay skew starts to eat into the bit-cell window. The -55°C to +100°C operating range covers industrial cabinet ambient and outdoor telecom enclosures. At the cold end the LED forward voltage rises about 2 mV/°C below 25°C, so the drive current stays within the 100 mA abs-max limit even at -55°C with a 3.3 V logic supply and a 220 Ω series resistor. onsemi lists the CNY17F3W as obsolete. No official successor or pin-compatible replacement is recorded from the original manufacturer. For new designs, consider a current-production optoisolator in the same 6-DIP footprint with equivalent or higher CTR (e.g., 400% or 600% bin) to maintain the same pull-up resistor value.","metaTitle":"onsemi CNY17F3W Optoisolator, 5300Vrms, Through Hole","metaDescription":"onsemi CNY17F3W optoisolator, 1-channel transistor output, 5300Vrms isolation, 100-200% CTR at 10mA. Obsolete — sourced to order 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":"Through Hole","Package / Case":"6-DIP (0.400\\\", 10.16mm)","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-DIP","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":"$0.0900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a47ea3b51cbb13a83c8d83e21910005.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY17F3W/alternatives.json"},"ai":{"faq":[{"question":"What is the isolation rating of the CNY17F3W?","answer":"The CNY17F3W provides 5300 Vrms isolation between input and output, suitable for reinforced insulation in mains-referenced circuits per IEC 60950 and IEC 62368."},{"question":"What package does the CNY17F3W come in?","answer":"It is supplied in a 6-DIP through-hole package (0.400-inch lead spacing, 10.16 mm body width), shipped in tubes."},{"question":"What is the current transfer ratio (CTR) range of the CNY17F3W?","answer":"CTR is guaranteed between 100% and 200% at If = 10 mA, Vce = 5 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY17F3W","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY17F3W when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:30:53.315Z","lastPublished":"2026-07-21T06:30:53.315Z","indexable":true}}