{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY172FVM","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY172FVM","canonicalUrl":"https://icboms.com/onsemi/CNY172FVM","factsUrl":"https://icboms.com/api/mcp/products/CNY172FVM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY172FVM single-channel optocoupler, DC input, transistor with base output, 4170Vrms isolation, 63-125% CTR at 10mA, 70V output, 6-SMD Gull Wing package, tube.","salesMarkdown":"onsemi has marked the CNY172FVM as Obsolete. The tube packaging and date-code consistency are verified before shipment. Rated at 4170Vrms isolation, this optocoupler provides galvanic separation between primary and secondary circuits in applications like motor-drive feedback, PLC digital inputs, and isolated DC-DC converter loops — the 4.17 kV rating covers reinforced insulation per IEC 60950-1 for 230 VAC mains environments. The current transfer ratio (CTR) is specified as 63% minimum and 125% maximum at a forward current of 10 mA — a tight bin that guarantees consistent LED drive current across production lots, so the downstream logic sees a predictable collector current without over-driving the LED. Switching speeds of 4 µs rise, 3.5 µs fall (max) and 2 µs turn-on, 3 µs turn-off (typ) limit the usable data rate to roughly 50-100 kbps in typical isolated serial links — adequate for 115.2 kbps UART or low-speed I²C, but not for CAN or high-speed SPI. Housed in a 6-SMD Gull Wing package (6-SMD per the supplier device code), the CNY172FVM sits on a standard SOIC-6 footprint with 1.27 mm pitch — reflow compatible with lead-free profiles up to 260°C peak. The tube packaging means parts are shipped in anti-static tubes, not tape-and-reel, so pick-and-place feeders may require tube-to-tape conversion. Operating temperature range -40°C to 100°C covers industrial enclosures and outdoor telecom cabinets — the 100°C upper limit is below the 125°C automotive grade, so avoid under-hood or engine-bay deployment without derating the LED current. ## Output ratings and drive limits Maximum forward current of 60 mA and typical forward voltage of 1.35 V set the LED drive budget — a 5 V supply with a 365 Ω series resistor delivers the 10 mA test condition and keeps the LED within its safe operating area across temperature. Vce saturation is 400 mV max at the rated collector current — this low saturation voltage ensures the output can pull a logic input low to within 0.4 V of ground, meeting TTL and LVCMOS thresholds without an external level shifter.","metaTitle":"onsemi CNY172FVM Optoisolator, 4170Vrms, 63-125% CTR, 6-SMD","metaDescription":"onsemi CNY172FVM single-channel optocoupler, 4170Vrms isolation, 63-125% CTR at 10mA, 70V output, -40 to 100°C.","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 with Base","Mounting Type":"Surface Mount","Package / Case":"6-SMD, Gull Wing","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"CNY172","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)":"125% @ 10mA","Current Transfer Ratio (Min)":"63% @ 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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dbff72ad709f03fb6695b1cadd7ed9fe.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY172FVM/alternatives.json"},"ai":{"faq":[{"question":"How can I order the CNY172FVM or check availability?","answer":"Availability, pricing, and lot traceability are confirmed at quote time — submit an RFQ for current stock and lead time."},{"question":"What is the closest pin-compatible alternative to the CNY172FVM?","answer":"No official successor is listed by onsemi. For a pin-compatible replacement, evaluate other 6-SMD Gull Wing optocouplers in the CNY17 family (e.g., CNY17F-1, CNY17-1) with similar CTR bins and isolation ratings — but verify the base pin connection and CTR range against your BOM before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY172FVM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY172FVM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:26:37.556Z","lastPublished":"2026-07-21T06:26:37.556Z","indexable":true}}