{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VOMDA1271T","brand":"Vishay","brandSlug":"vishay","productSlug":"VOMDA1271T","canonicalUrl":"https://icboms.com/vishay/VOMDA1271T","factsUrl":"https://icboms.com/api/mcp/products/VOMDA1271T","rawCanonicalId":null},"summary":{"shortDescription":"Vishay VOMDA1271T, single-channel photovoltaic optoisolator, 3750Vrms isolation, 4-SMD gull-wing package, 32µs turn-on / 80µs turn-off, DC input, -40°C to 125°C operating range.","salesMarkdown":"## Photovoltaic output for DC gate drive without a secondary supply The VOMDA1271T uses a photovoltaic output to generate a floating voltage from the LED input — no secondary bias rail needed. The 3750Vrms isolation barrier separates the low-voltage control side from the high-voltage load, making it a natural fit for IGBT/MOSFET gate drive in motor drives, solar inverters, and battery-management systems where the gate driver must float above the DC bus. ## Switching speed sets the application boundary Turn-on time is 32µs typical, turn-off 80µs typical — this is a DC-level or slow-switching part, not a PWM isolator. The photovoltaic cell charges the gate capacitance over tens of microseconds, so the intended use is static gate drive (on/off) or signal isolation where the output state holds for milliseconds or longer. For high-frequency switching, a push-pull opto or isolated gate-driver IC with faster CMTI would be needed. ## Active lifecycle and sourcing posture It is ROHS3 compliant. ## Package and temperature grade for industrial and automotive builds Surface-mount 4-SMD gull-wing package (4-SOP) — the gull-wing leads provide visual solder-joint inspection and some stress relief between the PCB and the opto body. The DC input type means the LED is driven by a DC forward current up to 50 mA; the typical forward voltage is 1.4V.","metaTitle":"VOMDA1271T Vishay Optoisolator – 3750Vrms","metaDescription":"Vishay VOMDA1271T optoisolator: 3750Vrms isolation, photovoltaic output, 32µs/80µs switching, -40°C to 125°C, 4-SOP gull wing. Active, ROHS3. Sourced per RFQ.","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":"Photovoltaic","Mounting Type":"Surface Mount","Package / Case":"4-SMD, Gull Wing","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"3750Vrms","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"4-SOP","Voltage - Forward (Vf) (Typ)":"1.4V","Turn On / Turn Off Time (Typ)":"32µs, 80µs","Current - DC Forward (If) (Max)":"50 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.03","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.03000","currency":"USD"},{"qty":10,"price":"$2.72300","currency":"USD"},{"qty":25,"price":"$2.57400","currency":"USD"},{"qty":100,"price":"$2.23080","currency":"USD"},{"qty":250,"price":"$2.11640","currency":"USD"},{"qty":500,"price":"$1.89904","currency":"USD"},{"qty":1000,"price":"$1.60160","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/25a34a1e2616aaadc9fc5f3f5acb13ee.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to VOMDA1271T?","answer":"Within Vishay's photovoltaic opto family, the VOM1271T (without the 'DA' suffix) shares the same 4-SOP gull-wing package and pinout, but the VOMDA1271T includes an additional damping diode across the photovoltaic stack to improve turn-off time. Confirm the BOM's turn-off requirement before substituting."},{"question":"Is VOMDA1271T RoHS compliant and lead-free?","answer":"Yes, it is listed as ROHS3 Compliant, meaning it meets the EU RoHS directive with no exemptions for lead in solder or other restricted substances."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/VOMDA1271T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/VOMDA1271T 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}}