{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY1733SD","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY1733SD","canonicalUrl":"https://icboms.com/onsemi/CNY1733SD","factsUrl":"https://icboms.com/api/mcp/products/CNY1733SD","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY1733SD optoisolator, single-channel DC input, transistor with base output, 5300Vrms isolation, 100-200% CTR, 6-SMD Gull Wing package, Tape & Reel.","salesMarkdown":"## 5300 Vrms isolation in a 6-SMD Gull Wing package The onsemi CNY1733SD is a single-channel optoisolator in a 6-SMD Gull Wing package, designed for DC input and transistor-with-base output. ## CTR and switching speed — what they mean for the BOM Current transfer ratio (CTR) is specified at 100% minimum to 200% maximum, tested at 10 mA forward current. This means the output transistor can sink at least as much current as the LED drives — a 10 mA input guarantees at least 10 mA output drive capability, with margin up to 20 mA. The 70 V output maximum and 50 mA continuous output current handle typical logic-level loads and low-power relay coils directly. Switching speed is defined by 1 µs rise and 2 µs fall times (typical), with turn-on at 2 µs and turn-off at 3 µs. This places it in the medium-speed class — adequate for 100 kHz PWM feedback and serial data isolation up to a few hundred kbps, but not for high-speed digital buses like CAN or RS-485 where faster optocouplers or digital isolators are needed. The 300 mV max Vce saturation at rated output current keeps power dissipation low in the output transistor, reducing thermal stress on the SMD package when driving loads near the 50 mA limit. Rated for -55°C to 100°C operating temperature, the CNY1733SD covers industrial and some military-grade environments. The 6-SMD Gull Wing package (supplier device package 6-SMD) is a standard footprint for optoisolators, compatible with reflow soldering processes. The Tape & Reel packaging indicates it ships on a reel suitable for automated pick-and-place assembly. onsemi has marked the CNY1733SD as Obsolete.","metaTitle":"onsemi CNY1733SD Optoisolator, 5300Vrms, 6-SMD Gull Wing","metaDescription":"onsemi CNY1733SD optoisolator, 5300Vrms isolation, 100-200% CTR at 10mA, -55 to 100°C. Obsolete — sourced to order against RFQ. 6-SMD Gull Wing package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tape & Reel (TR)","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":"CNY173","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)":"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":"$0.7600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e34b4a420dd134390615c9fed8bb5f31.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY1733SD/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CNY1733SD?","answer":"No official pin-compatible successor is listed by onsemi for this part. The CNY173 series shares the same base product number (CNY173) and 6-SMD Gull Wing footprint, but specific CTR bin and lifecycle status vary by suffix — verify the exact CTR and isolation requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY1733SD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY1733SD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:26:48.983Z","lastPublished":"2026-07-21T06:26:48.983Z","indexable":true}}