{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY17F2S","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY17F2S","canonicalUrl":"https://icboms.com/onsemi/CNY17F2S","factsUrl":"https://icboms.com/api/mcp/products/CNY17F2S","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY17F2S single-channel transistor-output optocoupler, 5300Vrms isolation, 63-125% CTR at 10mA, 6-SMD Gull Wing package, -55 to 100°C.","salesMarkdown":"The CNY17F2S is a single-channel transistor-output optocoupler from onsemi, part of the CNY17 family. Its 5300Vrms isolation rating qualifies it for reinforced insulation in mains-referenced circuits — enough to separate a 240 VAC field sensor from a 24 VDC PLC backplane without a separate isolation barrier. The current transfer ratio (CTR) is specified as 63% minimum to 125% maximum at If=10mA. That 2:1 spread means the downstream logic input must trigger reliably at the low end of the CTR range — a PLC input drawing 2 mA from the phototransistor needs at least 3.2 mA of LED drive to guarantee turn-on, leaving margin for LED ageing. Turn-on time is 2µs typical, turn-off 3µs typical, with rise/fall of 1µs and 2µs. These numbers set the practical pulse-width limit: a 10 µs input pulse is captured cleanly, but a 5 µs glitch may not reach the output threshold — the device acts as a crude noise filter for short transients on the field side. ## Obsolete — the sourcing reality for this optocoupler onsemi lists the CNY17F2S as Obsolete. The 6-SMD Gull Wing footprint is shared across the CNY17 family, but CTR binning (63-125% for the F2 suffix) is not pin-compatible with an un-binned replacement — a board spin is not required, but the logic threshold may need re-verification if substituting a different CTR grade. ## Temperature range and package — board-fit for industrial environments Rated for -55°C to 100°C operating ambient, the CNY17F2S covers the full industrial temperature band — outdoor PLC cabinets, motor-drive junction boxes, and engine-bay-adjacent control modules all stay within this envelope. The 70V maximum output voltage and 50mA output current are sufficient for driving a 24V PLC input through a series resistor, with the 300mV Vce(sat) ensuring the logic-low threshold is met even at the cold end of the range. The 6-SMD Gull Wing package (supplier device package 6-SMD) is a standard surface-mount footprint for automated pick-and-place. No through-hole variant — the board must support reflow or wave-solder on the gull-wing leads.","metaTitle":"onsemi CNY17F2S Optoisolator, 5300Vrms, 6-SMD Gull Wing","metaDescription":"onsemi CNY17F2S single-channel transistor-output optocoupler, 5300Vrms isolation, 63-125% CTR at 10mA, -55 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","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)":"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)":"100 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4a47ea3b51cbb13a83c8d83e21910005.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY17F2S/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY17F2S","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY17F2S when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:29:56.247Z","lastPublished":"2026-07-21T06:29:56.247Z","indexable":true}}