{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SFH610A-3","brand":"Vishay","brandSlug":"vishay","productSlug":"SFH610A-3","canonicalUrl":"https://icboms.com/vishay/SFH610A-3","factsUrl":"https://icboms.com/api/mcp/products/SFH610A-3","rawCanonicalId":null},"summary":{"shortDescription":"Vishay SFH610A-3 optocoupler, 1-channel DC-input transistor output, 5300Vrms isolation, 100-200% CTR at 10mA, through-hole 4-DIP (0.300\", 7.62mm), -55°C to 100°C.","salesMarkdown":"## Field-swappable isolation for mains-tied boards The Vishay SFH610A-3 is a single-channel, DC-input, transistor-output optocoupler in a through-hole 4-DIP package. It provides 5300Vrms of galvanic isolation, making it a standard choice for breaking ground loops in industrial controls, motor drives, and power supplies where reinforced insulation is required. The -3 CTR grade (100-200% at 10mA) gives you a solid middle ground for drive margin without over-saturating the output side. Current transfer ratio is the headline parameter that decides LED drive current and output pull-up sizing. At 10mA forward current, the SFH610A-3 guarantees a minimum CTR of 100% and a maximum of 200%. That means with 10mA in, you get at least 10mA of collector current capability on the output transistor (up to 20mA). The -3 grade sits between the -2 (63-125%) and the -4 (160-320%), so if your design needs tighter CTR tolerance or a specific saturation margin, picking the right grade avoids over-driving the LED or starving the output. ## Speed and switching: timing for the field Rise and fall times are both 2µs typical, with turn-on time of 3µs and turn-off of 2.3µs. That puts this part in the general-purpose optocoupler class — fine for 10-100 kHz PWM or logic-level isolation, but not for high-speed serial links. The 70V output breakdown and 50mA continuous output current handle most PLC input modules, relay drivers, and isolated feedback loops in off-line supplies. ## Through-hole DIP: serviceable without a rework station The 4-DIP package (0.300\" lead spacing, 7.62mm body width) is socket-friendly and hand-solderable. For a field-service technician, that means you can swap this part on site with basic tools — no hot-air wand, no preheater. The -55°C to 100°C operating range covers most industrial enclosures and outdoor cabinets, though you'll want to keep the LED forward current under 60mA absolute max.","metaTitle":"SFH610A-3 Optocoupler, 5300Vrms, 100-200% CTR, 4-DIP","metaDescription":"SFH610A-3 Vishay optocoupler: 5300Vrms isolation, transistor output, 100-200% CTR at 10mA, through-hole 4-DIP. Active lifecycle, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tube","Input Type":"DC","Output Type":"Transistor","Mounting Type":"Through Hole","Package / Case":"4-DIP (0.300\\\", 7.62mm)","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)":"2µs, 2µs","Voltage - Output (Max)":"70V","Supplier Device Package":"4-DIP","Current - Output / Channel":"50mA","Current Transfer Ratio (Max)":"200% @ 10mA","Current Transfer Ratio (Min)":"100% @ 10mA","Voltage - Forward (Vf) (Typ)":"1.25V","Turn On / Turn Off Time (Typ)":"3µs, 2.3µs","Current - DC Forward (If) (Max)":"60 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.02","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.02000","currency":"USD"},{"qty":10,"price":"$0.64600","currency":"USD"},{"qty":100,"price":"$0.47830","currency":"USD"},{"qty":500,"price":"$0.43956","currency":"USD"},{"qty":1000,"price":"$0.36198","currency":"USD"},{"qty":2000,"price":"$0.34389","currency":"USD"},{"qty":5000,"price":"$0.33613","currency":"USD"},{"qty":10000,"price":"$0.32837","currency":"USD"},{"qty":25000,"price":"$0.32320","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c1de4b0a35d8aea00d0cb4478fa4ce59.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I replace SFH610A-3 with SFH610A-2?","answer":"Yes, the SFH610A-2 is pin-compatible and functionally identical, but its CTR range is 63-125% at 10mA versus the -3's 100-200%. If your design's LED drive and output load were sized for the -3's CTR, dropping to the -2 may reduce output current margin. Check the CTR at your operating forward current before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/SFH610A-3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/SFH610A-3 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}}