{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SFH6286-4","brand":"Vishay","brandSlug":"vishay","productSlug":"SFH6286-4","canonicalUrl":"https://icboms.com/vishay/SFH6286-4","factsUrl":"https://icboms.com/api/mcp/products/SFH6286-4","rawCanonicalId":null},"summary":{"shortDescription":"Vishay SFH6286-4 phototransistor optocoupler, 1-channel, 5300Vrms isolation, 160%–500% CTR at 1mA, AC/DC input, 55V output, surface-mount 4-SMD gull wing package, -55°C to 100°C.","salesMarkdown":"## 5300Vrms isolation — the spec that defines the BOM slot The Vishay SFH6286-4 is a single-channel phototransistor optocoupler in a 4-SMD gull-wing package. Its 5300Vrms isolation rating makes it a candidate for galvanically isolated feedback in switch-mode power supplies, motor-drive I/O, and industrial PLC interfaces where you need to separate a high-voltage bus from a low-voltage controller. The AC/DC input capability means the LED can be driven from a rectified AC line or a DC logic signal — useful for zero-crossing detection or line-voltage monitoring without an external bridge. Current transfer ratio spans 160% minimum to 500% maximum, both specified at a 1 mA LED forward current. That 1 mA test point is low enough to keep the LED drive within a microcontroller GPIO's capability without a transistor buffer. The wide CTR spread means the load resistor on the output transistor needs to be sized for the minimum case to guarantee logic-level swing; the maximum case just means the output saturates harder at the same drive. Forward voltage is 1.1V typical, so a 3.3V supply with a series resistor can comfortably bias the LED. ## Switching speed and output ratings Rise and fall times are 3.5 µs and 5 µs typical; turn-on and turn-off times are 6 µs and 5.5 µs typical. That puts this part in the slow-switching category — fine for 50/60 Hz line sensing, relay drivers, or DC-link voltage feedback, but not for high-speed data or digital isolator replacement. The output transistor is rated for 55V maximum and 50 mA continuous, with a Vce(sat) of 400 mV maximum. That 55V ceiling covers most industrial 24V and 48V rails with margin; the 50 mA output can drive a logic input or a small relay coil directly.","metaTitle":"Vishay SFH6286-4 Optocoupler, 5300Vrms, 4-SMD Gull Wing","metaDescription":"SFH6286-4 phototransistor optocoupler with 5300Vrms isolation, 160–500% CTR at 1mA, AC/DC input, -55°C to 100°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"AC, DC","Output Type":"Transistor","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5300Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-55°C ~ 100°C","Rise / Fall Time (Typ)":"3.5µs, 5µs","Voltage - Output (Max)":"55V","Supplier Device Package":"4-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"500% @ 1mA","Current Transfer Ratio (Min)":"160% @ 1mA","Voltage - Forward (Vf) (Typ)":"1.1V","Turn On / Turn Off Time (Typ)":"6µs, 5.5µs","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.22","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.22000","currency":"USD"},{"qty":10,"price":"$0.77500","currency":"USD"},{"qty":100,"price":"$0.57360","currency":"USD"},{"qty":500,"price":"$0.52712","currency":"USD"},{"qty":1000,"price":"$0.43410","currency":"USD"},{"qty":2000,"price":"$0.41240","currency":"USD"},{"qty":5000,"price":"$0.40309","currency":"USD"},{"qty":10000,"price":"$0.39379","currency":"USD"},{"qty":25000,"price":"$0.38759","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5cecdb57731034bf66ec4e2d47ef922d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is SFH6286-4 RoHS compliant?","answer":"Yes, the SFH6286-4 is listed as ROHS3 compliant. No exemption paperwork needed for EU or California markets."},{"question":"Can SFH6286-4 be used for AC input?","answer":"Yes. The input type is specified as both AC and DC, so the internal LED can be driven from a rectified AC line or a DC logic signal without an external bridge rectifier. This is useful for zero-crossing detection or line-voltage monitoring circuits."},{"question":"What is the difference between SFH6286-4 and SFH6286-3?","answer":"The difference is the current transfer ratio bin. The SFH6286-4 guarantees a CTR of 160% to 500% at 1 mA, while the SFH6286-3 typically covers a lower range (e.g., 100%–320%). The -4 bin gives more output drive for the same LED current, which can simplify the load resistor selection or allow a weaker LED drive. Both share the same package, isolation, and switching speed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/SFH6286-4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/SFH6286-4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}