{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SFH617A-2X019T","brand":"Vishay","brandSlug":"vishay","productSlug":"SFH617A-2X019T","canonicalUrl":"https://icboms.com/vishay/SFH617A-2X019T","factsUrl":"https://icboms.com/api/mcp/products/SFH617A-2X019T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay SFH617A-2X019T single-channel transistor-output optocoupler, 5300Vrms isolation, 63% to 125% CTR at 10mA, 70V output, 50mA per channel, 4-SMD Gull Wing, -55 to 110°C.","salesMarkdown":"## What the isolation and CTR mean for your BOM The SFH617A-2X019T is a single-channel transistor-output optocoupler from Vishay, built for galvanic isolation between a DC input and a logic-level output. Its 5300Vrms isolation rating suits it for motor drives, industrial PLCs, and power supplies where the primary-to-secondary barrier must withstand high-voltage transients. The 63% to 125% current transfer ratio at 10mA forward current gives the designer a predictable LED current budget: at 10mA input, the output transistor can sink between 6.3mA and 12.5mA, which is enough to drive a microcontroller GPIO or a logic gate directly. The 400mV Vce saturation at the output means the transistor pulls close to ground when on, leaving clean logic-low levels. ## Temperature range and deployment environment It fits outdoor telecom cabinets, engine-bay electronics, and factory-floor sensors where ambient temperature swings are wide. The 2µs rise and fall times are adequate for isolating slow serial signals (UART, I²C up to 100kHz) or for driving a relay coil through a transistor buffer. ## Package and assembly Housed in a 4-SMD Gull Wing package (supplier device package 4-SMD), it is a surface-mount part for reflow or hand-solder assembly. The gull-wing leads are visible for inspection and rework. The 4-pin footprint is standard across the SFH617A family, so swapping density grades (CTR bin) within the same package is straightforward. ## Lifecycle and compliance For dual-sourcing resilience, the SFH617A family shares the same pinout and package, and the -2X019T suffix indicates the CTR bin (63% to 125%) — a second source with matching CTR bin can be qualified without layout changes.","metaTitle":"SFH617A-2X019T Optocoupler, 5300Vrms, 63-125% CTR, 4-SMD","metaDescription":"Vishay SFH617A-2X019T single-channel transistor-output optocoupler. 5300Vrms isolation, 63% to 125% CTR at 10mA, -55 to 110°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"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":"5300Vrms","Vce Saturation (Max)":"400mV","Operating Temperature":"-55°C ~ 110°C","Rise / Fall Time (Typ)":"2µs, 2µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-SMD","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"125% @ 10mA","Current Transfer Ratio (Min)":"63% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.35V","Turn On / Turn Off Time (Typ)":"3µs, 2.3µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.06","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.06000","currency":"USD"},{"qty":10,"price":"$0.67200","currency":"USD"},{"qty":100,"price":"$0.49700","currency":"USD"},{"qty":500,"price":"$0.45672","currency":"USD"},{"qty":1000,"price":"$0.37612","currency":"USD"},{"qty":2000,"price":"$0.35732","currency":"USD"},{"qty":5000,"price":"$0.34926","currency":"USD"},{"qty":10000,"price":"$0.34120","currency":"USD"},{"qty":25000,"price":"$0.33582","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a98d53b6ebe738054adad4da6bcda228.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the current transfer ratio (CTR) of the SFH617A-2X019T?","answer":"The CTR is specified at 63% minimum and 125% maximum, measured at a forward current of 10mA. This bin (the -2X019T suffix) gives a tighter spread than the full 40% to 320% range of the broader SFH617A family, which helps in designs where LED drive current must be minimized or where output current consistency matters."},{"question":"Can I use the SFH617A-2X019T for DC input applications?","answer":"Yes, the input type is DC. The LED is forward-biased by a DC current, and the transistor output switches accordingly. It is not intended for AC line isolation (no zero-crossing detection, no triac driver)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/SFH617A-2X019T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/SFH617A-2X019T 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}}