{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY17F4300","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY17F4300","canonicalUrl":"https://icboms.com/onsemi/CNY17F4300","factsUrl":"https://icboms.com/api/mcp/products/CNY17F4300","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY17F4300 optocoupler, 1-channel DC-input transistor-output, 5300Vrms isolation, 160-320% CTR at 10mA, 6-DIP through-hole, tube.","salesMarkdown":"## 5300Vrms isolation in a 6-DIP through-hole package The onsemi CNY17F4300 is a single-channel phototransistor optocoupler in the standard 6-DIP (0.300\", 7.62mm) through-hole package. It provides 5300Vrms galvanic isolation between a DC input LED and a phototransistor output — sufficient for reinforced insulation in mains-connected industrial control interfaces, SMPS feedback loops, and PLC digital input modules where the safety barrier must withstand 250VAC working voltage with margin. The 160% to 320% current transfer ratio at 10mA forward current means the phototransistor saturates reliably with modest LED drive, keeping the input-side power budget low in 24V PLC or 5V logic circuits. The 70V output breakdown and 50mA continuous output current handle typical logic-level loads and low-power relay coils without an external buffer. ## Switching speed and temperature range for the BOM With 1µs typical rise and 2µs typical fall times, and 2µs turn-on / 3µs turn-off, the CNY17F4300 switches comfortably at data rates up to about 100 kbps — adequate for 50/60Hz zero-cross detection, status feedback, and low-speed serial isolation. The -55°C to 100°C operating temperature range covers industrial enclosures and outdoor telecom cabinets without derating. The 300mV maximum Vce saturation at rated current ensures the output drops less than a logic-low threshold when driving a TTL or CMOS input — no pull-up resistor adjustment needed when replacing an older optocoupler in the same footprint. onsemi has marked the CNY17F4300 as Obsolete. No direct successor order code is listed by the manufacturer. For a BOM line that requires the 6-DIP footprint and 5300Vrms isolation, the CNY17F4300 is a drop-in fit. Confirm the CTR bin (160-320% at 10mA) matches the original design's minimum transfer ratio before committing.","metaTitle":"onsemi CNY17F4300 Optoisolator, 5300Vrms, 6-DIP","metaDescription":"onsemi CNY17F4300 optocoupler, 5300Vrms isolation, 160-320% CTR at 10mA, 6-DIP through-hole.","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 (0.300\\\", 7.62mm)","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)":"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)":"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/CNY17F4300/alternatives.json"},"ai":{"faq":[{"question":"What package does the CNY17F4300 come in?","answer":"6-DIP (0.300\", 7.62mm) through-hole, supplied in tube."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY17F4300","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY17F4300 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:30:55.833Z","lastPublished":"2026-07-21T06:30:55.833Z","indexable":true}}