{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CNY171TM","brand":"onsemi","brandSlug":"onsemi","productSlug":"CNY171TM","canonicalUrl":"https://icboms.com/onsemi/CNY171TM","factsUrl":"https://icboms.com/api/mcp/products/CNY171TM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi CNY171TM optoisolator, 1-channel, DC input, transistor with base output, 4170Vrms isolation, 40-80% CTR at 10mA, 6-DIP through-hole, tube.","salesMarkdown":"The onsemi CNY171TM is a single-channel optoisolator in a 6-DIP (0.400\", 10.16mm) through-hole package, with a DC input LED and a phototransistor output that brings out the base pin. The current transfer ratio (CTR) is specified at 40% minimum and 80% maximum when the forward current is 10mA, which defines the gain margin for the driven load. The output transistor can handle up to 70V collector-emitter and 50mA continuous current, with a typical Vce(sat) of 400mV at the rated drive — enough to directly sink a logic input or a small relay coil. A pin-to-pin functional equivalent from the same family (CNY17 series) may exist, but no cross-reference is officially documented — verify the CTR bin and base-pin connectivity against the original design before substituting. The 6-DIP package with 0.400\" (10.16mm) body width and 2.54mm pin pitch is a standard through-hole footprint shared across many optoisolators — the board layout is straightforward and the tube delivery suits hand-insertion or wave-solder assembly.","metaTitle":"onsemi CNY171TM Optoisolator, 1-Ch, DC Input, 4170Vrms","metaDescription":"onsemi CNY171TM optoisolator, obsolete. 1-channel DC input, transistor with base output, 4170Vrms isolation, 40-80% CTR at 10mA. Sourced to order.","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":"CNY171","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)":"80% @ 10mA","Current Transfer Ratio (Min)":"40% @ 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":"$0.2000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dbff72ad709f03fb6695b1cadd7ed9fe.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/CNY171TM/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the CNY171TM and how do I get a price?","answer":"Submit an RFQ for current availability and pricing; each lot is confirmed at quote time."},{"question":"What is the closest pin-compatible alternative to the CNY171TM?","answer":"No official cross-reference is documented. Parts from the same CNY17 family share the 6-DIP footprint and pinout, but the CTR bin and base-pin connection must be verified against the original design before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/CNY171TM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/CNY171TM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:25:38.471Z","lastPublished":"2026-07-21T06:25:38.471Z","indexable":true}}