{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY173VM","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY173VM","canonicalUrl":"https://icboms.com/onsemi/CNY173VM","factsUrl":"https://icboms.com/api/mcp/products/CNY173VM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY173VM single-channel optoisolator, DC input, transistor with base output, 4170Vrms isolation, 100-200% CTR, 70V/50mA output, through-hole 6-DIP package, tube.","salesMarkdown":"## Active production — single-channel optoisolator with 4.17 kV isolation The CNY173VM: The current transfer ratio (CTR) is specified at 100% minimum and 200% maximum when the forward current is 10 mA — a tight bin that guarantees consistent gain across the reel. This matters for designs where the downstream logic threshold depends on the phototransistor's collector current, such as PLC digital inputs or industrial sensor interfaces. ## Switching speed and output limits for PLC and industrial I/O Turn-on time is 2 µs typical, turn-off 3 µs typical, with rise and fall times of 4 µs and 3.5 µs maximum respectively. This places the CNY173VM comfortably in the range for 24 VDC PLC input modules scanning at 1 kHz or below, where the opto's propagation delay adds negligible latency to the fieldbus cycle. The output transistor is rated for 70 V maximum and 50 mA continuous per channel — sufficient to drive a 24 V logic input through a 4.7 kΩ pull-up resistor while staying well within the safe operating area. Vce saturation is clamped at 400 mV maximum, so the voltage drop across the output does not eat into the logic-high margin. Operating temperature spans -40°C to 100°C, covering the industrial enclosure ambient range without derating. ## Package and assembly — through-hole 6-DIP in tube The through-hole 6-DIP footprint is compatible with wave-solder processes and manual insertion — no special moisture sensitivity level (MSL) handling beyond standard ESD precautions for optoisolators.","metaTitle":"onsemi CNY173VM Optoisolator, 4170Vrms, 100-200% CTR, 6-DIP","metaDescription":"onsemi CNY173VM single-channel optoisolator, 4170Vrms isolation, 100-200% CTR at 10mA, 70V/50mA output, through-hole 6-DIP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Transistor with Base","Mounting Type":"Through Hole","Package / Case":"6-DIP (0.300\\\", 7.62mm)","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"CNY173","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)":"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)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dbff72ad709f03fb6695b1cadd7ed9fe.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY173VM/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to CNY173VM?","answer":"The CNY173VM is a single-channel, 6-DIP optoisolator with a transistor-with-base output. Pin-compatible alternatives within the same onsemi family include the CNY173 (standard CTR bin) and CNY174 (higher CTR bin). The base pin allows the designer to add a base-emitter resistor for noise immunity or to tailor the switching threshold — a feature not available on base-less optos like the 4N25 or PC817."},{"question":"What compliance documentation does onsemi provide for CNY173VM?","answer":"onsemi provides RoHS and REACH compliance declarations for the CNY173VM. The part is also UL-recognized under file E207217 and VDE-approved per DIN EN 60747-5-5. These certifications are standard for industrial-grade optoisolators and are referenced in the manufacturer's datasheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY173VM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY173VM 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}}