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The SM8K54A is a high-power unidirectional transient voltage suppression diode rated at 8000W peak pulse power (10/1000µs), designed to protect 54V DC power rails from severe transient overvoltage and load dump events. Housed in a robust DO-218AB package, it provides low leakage current, fast response time, and strong clamping performance for automotive electronics, industrial control systems, communication equipment, and energy infrastructure.