{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SFH690AT3","brand":"Vishay","brandSlug":"vishay","productSlug":"SFH690AT3","canonicalUrl":"https://icboms.com/vishay/SFH690AT3","factsUrl":"https://icboms.com/api/mcp/products/SFH690AT3","rawCanonicalId":null},"summary":{"shortDescription":"Vishay SFH690AT3 optocoupler, 1-channel, transistor output, 3750Vrms isolation, 4-SMD Gull Wing package, 50-150% CTR at 5mA, DC input.","salesMarkdown":"## 3750Vrms isolation in a 4-SMD Gull Wing The SFH690AT3 is a single-channel Vishay optocoupler with a phototransistor output, delivering 3750Vrms of galvanic isolation between input and output sides. Packaged in a 4-SMD Gull Wing (4-SOP with 2.54mm pitch), it's designed for surface-mount assembly on mixed-signal boards where ground loops or voltage differentials need breaking. With a DC input and a current transfer ratio (CTR) specified between 50% and 150% at a forward current of 5mA, this part gives a predictable current gain window for driving logic-level inputs or low-power loads up to 50mA per channel. ## Switching speed and drive capability Typical rise and fall times are 3µs and 4µs respectively, with turn-on and turn-off times of 5µs and 3µs. This positions the SFH690AT3 for moderate-speed signal isolation — think PLC digital inputs, relay drivers, or DC bus voltage sensing where microsecond-level response is sufficient. The output transistor can handle up to 70V across the collector-emitter, with a saturation voltage of 300mV max at rated current. This 70V ceiling covers 24V and 48V industrial rails with margin, while the low Vce(sat) keeps power dissipation minimal in the on-state. ## Temperature range and compliance No official successor or second-source cross-reference is recorded — this is a sole-sourced BOM line from Vishay.","metaTitle":"Vishay SFH690AT3 Optoisolator, 3750Vrms, 4-SMD, Active","metaDescription":"Vishay SFH690AT3 optocoupler, 3750Vrms isolation, 50-150% CTR at 5mA, 4-SMD Gull Wing. Active production, ROHS3. Request a quote for BOM quantities.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"3750Vrms","Vce Saturation (Max)":"300mV","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"3µs, 4µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-SOP (2.54mm)","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"150% @ 5mA","Current Transfer Ratio (Min)":"50% @ 5mA","Voltage - Forward (Vf) (Typ)":"1.15V","Turn On / Turn Off Time (Typ)":"5µs, 3µs","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8","priceTiers":[{"qty":1,"price":"$0.80000","currency":"USD"},{"qty":10,"price":"$0.52000","currency":"USD"},{"qty":100,"price":"$0.34050","currency":"USD"},{"qty":1000,"price":"$0.26883","currency":"USD"},{"qty":2000,"price":"$0.25091","currency":"USD"},{"qty":6000,"price":"$0.24195","currency":"USD"},{"qty":10000,"price":"$0.23836","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fc99887352e7b547dd93dcd04d774df1.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/SFH690AT3/alternatives.json"},"ai":{"faq":[{"question":"What is the SFH690AT3's current transfer ratio (CTR) range?","answer":"The CTR is specified at 50% minimum and 150% maximum, both measured at a forward current of 5mA. This means the output collector current will be between 2.5mA and 7.5mA when the LED is driven with 5mA, giving a predictable gain window for circuit design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/SFH690AT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/SFH690AT3 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}}