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The 6.6SMDJ43CA-H is an automotive-grade bidirectional TVS diode engineered to suppress high-energy transient overvoltage on 43V DC power lines. With a 6600W peak pulse rating (10/1000µs), AEC-Q101 qualification and ISO 7637-2 compliance, it offers symmetrical clamping, fast response time and robust surge handling capability. The DO-214AB (SMC) package supports compact and reliable automotive and industrial designs.