{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY172300W","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY172300W","canonicalUrl":"https://icboms.com/onsemi/CNY172300W","factsUrl":"https://icboms.com/api/mcp/products/CNY172300W","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY172300W Optoisolator, 1-channel, DC input, Transistor with Base output, 5300Vrms isolation, 63-125% CTR, 6-DIP through-hole, Tube.","salesMarkdown":"## Isolation and CTR — the two numbers that decide fit The CNY172300W: Rated for 5300Vrms isolation, this optoisolator provides a certified safety barrier between mains-tied circuits and low-voltage control logic — suitable for reinforced insulation in power supplies, motor drives, and industrial I/O modules where IEC 60950 or IEC 62368 clearance requirements apply. Current transfer ratio (CTR) is specified as 63% minimum and 125% maximum at a forward current of 10mA. This range guarantees the output transistor saturates reliably across temperature and device variation — critical when driving a logic input or a small relay coil without over-designing the LED drive current. The transistor output with base allows the designer to adjust switching speed or add a pull-up resistor at the base node — a flexibility not available in Darlington or digital-output optoisolators. ## Switching speed and output drive Typical rise time is 1µs and fall time 2µs; turn-on time is 2µs and turn-off 3µs. This suits low-frequency logic-level signals up to about 100 kHz — fast enough for PLC input modules, relay drivers, and isolated serial communication (e.g., RS-232 at 115.2 kbps), but not for high-speed data links. Output is rated for 50mA continuous at a maximum Vce of 70V. This drives small relays, DC loads, or logic gates directly; for higher loads an external transistor buffer is needed. ## Package and temperature grade Housed in a 6-DIP through-hole package (0.400-inch, 10.16mm body width), with a supplier device package of 6-DIP. The through-hole format is rework-friendly and survives hand-soldering or wave-solder — no moisture sensitivity level (MSL) concern, no bake-out required before assembly. The 100°C upper limit restricts use in hot engine bays or high-ambient enclosures without derating.","metaTitle":"CNY172300W onsemi Optoisolator, 5300Vrms, 63-125% CTR","metaDescription":"onsemi CNY172300W 1-channel optoisolator, 5300Vrms isolation, 63-125% CTR at 10mA, 6-DIP through-hole. Obsolete — sourced to order against RFQ.","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":"Through Hole","Package / Case":"6-DIP (0.400\\\", 10.16mm)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"CNY172","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)":"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/CNY172300W/alternatives.json"},"ai":{"faq":[{"question":"What is the CTR range of the CNY172300W?","answer":"The current transfer ratio (CTR) is 63% minimum and 125% maximum at a forward current of 10mA. This bin ensures the output transistor saturates reliably across temperature and part-to-part variation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY172300W","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY172300W when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:25:53.812Z","lastPublished":"2026-07-21T06:25:53.812Z","indexable":true}}