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SMDJ220A is a high-power, high-reliability TVS diode for protecting 220V DC rails and high-voltage interfaces from surge and switching transients. With 3000W peak pulse capability (10/1000µs), low dynamic resistance and fast response, it clamps lightning-induced surges and inductive load spikes to a safe level. The compact DO-214AB (SMC) package enables robust PCB integration for industrial power supplies, inverters and telecom power systems.