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The 6.6SMDJ28A-H is an automotive-grade, high-reliability TVS diode designed to protect 28V DC power lines from severe transient overvoltage events such as load dump, lightning surge and inductive switching. Rated at 6600W peak pulse power (10/1000µs) and compliant with AEC-Q101 and ISO 7637-2, it delivers fast clamping response, low leakage current and excellent surge endurance. The DO-214AB (SMC) package ensures robust thermal performance and reliable operation in automotive and industrial power systems.