{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY174VM","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY174VM","canonicalUrl":"https://icboms.com/onsemi/CNY174VM","factsUrl":"https://icboms.com/api/mcp/products/CNY174VM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY174VM optocoupler, single-channel, DC input, transistor with base output, 4170 Vrms isolation, 160-320% CTR, 6-DIP through-hole, bulk.","salesMarkdown":"## 4170 Vrms isolation, 160–320% CTR, through-hole 6-DIP The onsemi CNY174VM is a single-channel phototransistor optocoupler in a 6-DIP through-hole package. It provides 4170 Vrms galvanic isolation between a DC LED input and a phototransistor output with base access — a common choice for logic-level signal isolation in industrial control, PLC digital inputs, and serial communication interfaces where the 6-DIP footprint allows manual assembly or rework. ## CTR and output ratings — what drives the BOM fit That spread means the output transistor saturates at a collector current between 16 mA and 32 mA for a 10 mA input — wide enough that the downstream logic threshold must tolerate the full range without redesigning the pull-up resistor. The output transistor is rated for 70 V collector-emitter and 50 mA continuous current, so it can drive a 5 V or 24 V logic input directly through a series resistor. ## Switching speed and temperature range Turn-on time is 2 µs typical, turn-off 3 µs typical; rise and fall times are 4 µs and 3.5 µs maximum respectively. This limits the usable data rate to roughly 100 kbps in a saturated-switching application — fine for 10 kHz PWM feedback or slow serial buses but not for high-speed isolation. The CNY174VM is listed as Active by onsemi.","metaTitle":"onsemi CNY174VM Optoisolator, 4170Vrms, 160-320% CTR, 6-DIP","metaDescription":"onsemi CNY174VM single-channel transistor-output optocoupler. 4170 Vrms isolation, 160–320% CTR at 10 mA, 70 V output, -40 to 100°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Bulk","Input Type":"DC","Output Type":"Transistor with Base","Mounting Type":"Through Hole","Package / Case":"6-DIP (0.300\\\", 7.62mm)","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"CNY174","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":"$0.6600","priceTiers":[{"qty":1614,"price":"$0.19000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/797e1bae5fbe8a83537d05bcb4eb4967.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY174VM/alternatives.json"},"ai":{"faq":[{"question":"What is the CTR range for CNY174VM?","answer":"Current transfer ratio is 160% minimum and 320% maximum, both specified at If = 10 mA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY174VM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY174VM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}