{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FOD8343TR2","brand":"onsemi","brandSlug":"onsemi","productSlug":"FOD8343TR2","canonicalUrl":"https://icboms.com/onsemi/FOD8343TR2","factsUrl":"https://icboms.com/api/mcp/products/FOD8343TR2","rawCanonicalId":null},"summary":{"shortDescription":"onsemi FOD8343TR2, single-channel optocoupled gate driver, 5000Vrms isolation, 4A peak output, 6-SOP surface-mount package","salesMarkdown":"## What the 5000Vrms and 4A peak ratings mean for your gate-drive design The FOD8343TR2 is a single-channel optocoupled gate driver from onsemi that delivers 4A peak output current across a 5000Vrms reinforced isolation barrier. That isolation rating is the safety envelope for motor-drive, inverter, and industrial power-supply applications where the primary and secondary sides must stay galvanically separated. The 4A peak output is enough to drive medium-power IGBTs and MOSFETs directly — think 600V/20A class switches — without an external buffer stage. ## Parametric deep-dive: propagation delay, CMTI, and pulse-width distortion Propagation delay is 210ns max for both tpLH and tpHL, with pulse-width distortion held to 65ns max. That symmetry matters when the downstream gate needs a clean on/off transition — asymmetric delay shifts the duty cycle and can saturate the transformer core in a half-bridge topology. The 50kV/µs minimum common-mode transient immunity (CMTI) is the critical spec for motor-drive environments: when the IGBT collector swings 400V in tens of nanoseconds, that dv/dt couples across the optocoupler's internal capacitance. A driver with low CMTI can latch the output high or low, causing shoot-through. At 50kV/µs, the FOD8343TR2 stays quiet through that transient. ## Supply voltage and output drive capability The output side operates from 10V to 30V, which covers the standard gate-drive rails for IGBTs (typically 15V) and MOSFETs (10V to 15V). The high/low output current is rated 3A source and 3A sink, so the part can charge and discharge the gate capacitance at roughly equal rates. Rise and fall times are 38ns and 24ns typical — the faster fall time helps turn off the power switch cleanly, reducing the tail-current loss in IGBTs. ## Package, mounting, and sourcing posture Housed in a 6-SOIC (6.80mm width) surface-mount package, the FOD8343TR2 is supplied on Tape & Reel (TR) or Cut Tape (CT).","metaTitle":"FOD8343TR2 onsemi Optoisolator Gate Driver – 5000Vrms","metaDescription":"onsemi FOD8343TR2 optocoupled gate driver: 5000Vrms isolation, 4A peak output, 50kV/µs CMTI, 6-SOP package. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Optoisolators"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Technology":"Optical Coupling","Mounting Type":"Surface Mount","Package / Case":"6-SOIC (0.268\\\", 6.80mm Width)","Approval Agency":"UR","lifecycle_stage":"eol_hot","Number of Channels":"1","Voltage - Isolation":"5000Vrms","Current - Peak Output":"4A","Operating Temperature":"-40°C ~ 100°C","Rise / Fall Time (Typ)":"38ns, 24ns","Supplier Device Package":"6-SOP","Voltage - Output Supply":"10V ~ 30V","Current - Output High, Low":"3A, 3A","Pulse Width Distortion (Max)":"65ns","Voltage - Forward (Vf) (Typ)":"1.5V","Current - DC Forward (If) (Max)":"25 mA","Propagation Delay tpLH / tpHL (Max)":"210ns, 210ns","Common Mode Transient Immunity (Min)":"50kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.51000","currency":"USD"},{"qty":10,"price":"$2.47900","currency":"USD"},{"qty":100,"price":"$2.03080","currency":"USD"},{"qty":500,"price":"$1.71200","currency":"USD"},{"qty":1000,"price":"$1.57032","currency":"USD"},{"qty":2000,"price":"$1.50538","currency":"USD"},{"qty":5000,"price":"$1.47586","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a3f1ba66b558ccd606a53ea52771cbde.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is FOD8343TR2 RoHS compliant?","answer":"Yes, it is listed as ROHS3 Compliant."},{"question":"What is the closest functional alternative to FOD8343TR2?","answer":"The FOD8343T (tube package) is electrically identical — same 4A peak output, 50kV/µs CMTI, and 5000Vrms isolation. The FOD8342TR2 is a lower-current variant with 2.5A peak output and 20kV/µs CMTI, suitable for smaller gate loads where the higher dv/dt immunity is not required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/onsemi/FOD8343TR2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/onsemi/FOD8343TR2 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}}