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SMDJ190A is a high-power TVS diode engineered to protect 190V DC rails from lightning surges, load switching spikes and other high-energy transients. With 3000W peak pulse capability (10/1000µs) and low dynamic resistance, it clamps overvoltage events quickly to reduce stress on power devices. The DO-214AB (SMC) package enables compact, rugged surge protection for industrial power and telecom systems.