{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6N139SM","brand":"onsemi","brandSlug":"onsemi","productSlug":"6N139SM","canonicalUrl":"https://icboms.com/onsemi/6N139SM","factsUrl":"https://icboms.com/api/mcp/products/6N139SM","rawCanonicalId":null},"summary":{"shortDescription":"onsemi 6N139SM, single-channel DC-input optoisolator, Darlington with base output, 5000Vrms isolation, 500% min CTR at 1.6mA, 8-SMD gull-wing package, -40°C to 100°C.","salesMarkdown":"## Isolation barrier and output drive capability The Darlington output with base access allows the designer to adjust the switching threshold or add a pull-down resistor for noise immunity — a feature missing from simpler Darlington optocouplers. Minimum current transfer ratio of 500% at 1.6 mA forward current means the LED can be driven directly from a 3.3V or 5V logic output without an external transistor, saving one driver stage per channel. ## Switching speed and timing margin Turn-on time of 240 ns and turn-off time of 1.3 µs (typical) set the practical data rate ceiling around 500 kbps — adequate for slow serial buses like RS-485 or I2C isolation, but not for high-speed SPI or CAN FD. The asymmetric turn-on/turn-off skew means the propagation delay mismatch must be budgeted in the system timing analysis, especially in multi-channel or daisy-chained isolation paths. ## Package and assembly fit 8-SMD gull-wing package (8-SMD, Gull Wing) is a surface-mount footprint compatible with standard reflow profiles and allows visual solder-joint inspection — a practical advantage over leadless packages in high-reliability or rework-prone builds. The package is supplied in Tube, which is the standard handling format for through-hole or large-body SMD parts; tape-and-reel availability is not listed, so confirm packaging with your order quantity.","metaTitle":"6N139SM Optoisolator – onsemi, 5000Vrms, Darlington Output","metaDescription":"onsemi 6N139SM optoisolator: 5000Vrms isolation, 500% min CTR at 1.6mA, Darlington with base output, 8-SMD gull-wing package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"onsemi","Series":"-","Package":"Tube","Input Type":"DC","Output Type":"Darlington with Base","Mounting Type":"Surface Mount","Package / Case":"8-SMD, Gull Wing","Product Status":"Active","lifecycle_stage":"eol_hot","Number of Channels":"1","Base Product Number":"6N139","Voltage - Isolation":"5000Vrms","Vce Saturation (Max)":"-","Operating Temperature":"-40°C~100°C","Rise / Fall Time (Typ)":"-","Voltage - Output (Max)":"18V","Supplier Device Package":"8-SMD","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)":"240ns, 1.3µs","Current - DC Forward (If) (Max)":"20 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4700","priceTiers":[{"qty":1,"price":"$1.77000","currency":"USD"},{"qty":10,"price":"$1.12100","currency":"USD"},{"qty":100,"price":"$0.82990","currency":"USD"},{"qty":500,"price":"$0.76260","currency":"USD"},{"qty":1000,"price":"$0.62803","currency":"USD"},{"qty":2000,"price":"$0.59663","currency":"USD"},{"qty":5000,"price":"$0.58317","currency":"USD"},{"qty":10000,"price":"$0.56971","currency":"USD"},{"qty":25000,"price":"$0.56286","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/646a30e661680f909facce39eb3cee6c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/6N139SM/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/6N139SM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/6N139SM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}