{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY17F4TM","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY17F4TM","canonicalUrl":"https://icboms.com/onsemi/CNY17F4TM","factsUrl":"https://icboms.com/api/mcp/products/CNY17F4TM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY17 series optoisolator, DC input transistor output, 1 channel, 4170Vrms isolation, 160% to 320% CTR, 6-DIP through-hole package, Bulk.","salesMarkdown":"The onsemi CNY17F4TM is a single-channel optoisolator in the CNY17 family, DC input with transistor output, housed in a 6-DIP (0.400\", 10.16mm) through-hole package. Isolation is rated at 4170Vrms, making it suitable for galvanic isolation in industrial control interfaces, power supply feedback loops, and logic-level shifting where the primary-to-secondary voltage stress stays within that ceiling. Current transfer ratio (CTR) is specified at 160% minimum to 320% maximum, tested at If=10mA — this wide band means the part drives a logic input or a low-current relay coil without an additional gain stage, but the min/max spread must be budgeted in the threshold design. ## Switching performance and temperature range Turn-on time is 2µs typical, turn-off 3µs typical, with rise/fall times of 4µs and 3.5µs respectively — these place the part in the medium-speed class for optocouplers, adequate for 10-50 kHz switching supplies or serial data rates below 100 kbps. Operating temperature spans -40°C to 100°C, covering industrial enclosures and outdoor telecom cabinets without derating the isolation or CTR. Output transistor withstands up to 70V collector-emitter and 50mA continuous current — typical for driving a PLC digital input module or a 24V logic gate. No pin-compatible direct replacement is documented by the manufacturer, so a BOM substitution requires a parametric search within the CNY17 family or a functionally equivalent optocoupler series.","metaTitle":"onsemi CNY17F4TM Optoisolator, 4170Vrms, 6-DIP","metaDescription":"onsemi CNY17F4TM optoisolator, obsolete, 4170Vrms isolation, 160-320% CTR, DC input transistor output, 6-DIP through-hole. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Bulk","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":"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-DIP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"320% @ 10mA","Current Transfer Ratio (Min)":"160% @ 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/CNY17F4TM/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the CNY17F4TM?","answer":"The manufacturer does not list a direct pin-compatible successor. Other parts in the CNY17 family (e.g., CNY17F1TM, CNY17F2TM) share the same 6-DIP footprint and pinout but differ in CTR bin — a parametric cross-reference is needed to match the 160-320% CTR band."},{"question":"What package does the CNY17F4TM come in?","answer":"6-DIP (0.400\", 10.16mm) through-hole, supplied in Bulk."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY17F4TM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY17F4TM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:31:37.130Z","lastPublished":"2026-07-21T06:31:37.130Z","indexable":true}}