{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6N139V","brand":"onsemi","brandSlug":"onsemi","productSlug":"6N139V","canonicalUrl":"https://icboms.com/onsemi/6N139V","factsUrl":"https://icboms.com/api/mcp/products/6N139V","rawCanonicalId":null},"summary":{"shortDescription":"onsemi 6N139V Optoisolator, DC input, Darlington with Base output, 1 Channel, 2500 Vrms, 500% min CTR, Through Hole, 8-DIP (0.300\", 7.62mm).","salesMarkdown":"The 6N139V: It uses a DC input LED driving a Darlington phototransistor output with a base connection, giving a minimum current transfer ratio of 500 % at a forward current of just 1.6 mA. Isolation is rated at 2500 Vrms, which covers basic functional isolation in industrial control, PLC I/O modules, and isolated data interfaces where the signal path needs to cross a safety barrier without galvanic continuity. ## Switching speed and drive requirements Typical turn-on time is 1.5 µs and turn-off time is 7 µs, placing this part in the medium-speed class for optoisolators. The Darlington output provides high gain — the 500 % minimum CTR means the output can sink 60 mA continuously from a 1.6 mA LED drive, which is useful for driving a logic gate input or a small relay directly without a buffer transistor. ## Temperature range and package The through-hole DIP package is suitable for prototyping, low-volume production, and applications where vibration is not a primary concern — the leads provide mechanical strain relief compared to surface-mount packages. onsemi lists the 6N139V as Obsolete. No official successor or pin-compatible replacement is recorded in the available documentation.","metaTitle":"onsemi 6N139V Optoisolator, Darlington Output, 2500 Vrms","metaDescription":"onsemi 6N139V single-channel optoisolator, Darlington with base output, 500% min CTR at 1.6 mA, 2500 Vrms isolation, through-hole DIP-8.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Optoisolators"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Bulk","Input Type":"DC","Output Type":"Darlington with Base","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"6N139","Voltage - Isolation":"2500Vrms","Vce Saturation (Max)":"-","Operating Temperature":"-40°C ~ 85°C","Rise / Fall Time (Typ)":"-","Voltage - Output (Max)":"18V","Supplier Device Package":"8-DIP","Current - Output / Channel":"60mA","Current Transfer Ratio (Max)":"-","Current Transfer Ratio (Min)":"500% @ 1.6mA","Voltage - Forward (Vf) (Typ)":"1.3V","Turn On / Turn Off Time (Typ)":"1.5µs, 7µs","Current - DC Forward (If) (Max)":"20 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b62d34c60f4ce21d8bd4b22e173d60f9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key ratings of the 6N139V?","answer":"The 6N139V is a single-channel optoisolator with a Darlington output (base pin available). Minimum current transfer ratio is 500 % at 1.6 mA LED current. Isolation voltage is 2500 Vrms. Output current is 60 mA continuous, output voltage maximum is 18 V. Typical switching times are 1.5 µs on and 7 µs off."},{"question":"How can I order the 6N139V or check stock?","answer":"The 6N139V is sourced to order through independent distribution. Submit a request with your target quantity and any date-code or lot-traceability requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/6N139V","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/6N139V when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T06:24:52.733Z","lastPublished":"2026-07-21T06:24:52.733Z","indexable":true}}