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The ESD12VD9 provides dependable protection against electrostatic discharge and voltage transients in compact designs. With a 12V reverse working voltage, breakdown voltage around 13.5V, clamping voltage of approximately 23.7V at 5.9A surge current, and junction capacitance near 30pF, it balances protection strength and signal compatibility. Supporting peak pulse power of 140W, it is widely used in mobile devices, digital cameras, audio equipment, and consumer electronics.