SMCJ28CAHE3/57T

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TVS diodes are a type of overvoltage protection component used for a wide variety of applications. The SMCJ28CAHE3/57T is a monolithic bidirectional, high voltage, low-clamping voltage transient voltage suppressor (TVS) diode designed for automotive load dump and high-energy transients in the automotive environment. The device is provided in an ultra-small form-factor, high-temperature, surface mount package.

This SMCJ28CAHE3/57T component has several different application fields. It can be used as a transient overvoltage protection in automotive power trains, which require high power and fast reaction times. It is also suitable for protection of semiconductors in automotive engine control units and for circuit protection in fuse boxes and audio equipment. Additionally, it can be used for fault protection applications in motor control and for preventing electrical overloads in high-current DC circuits. The SMCJ28CAHE3/57T can also be used for protecting logic ICs from voltage transients.

The working principle of the SMCJ28CAHE3/57T is based on its abilility to conduct current in one direction until the peak voltage across it reaches a certain level. At that point, the device switches into breakdown mode and rapidly conducts current in both directions, clamping the excess voltage and providing protection for the device or the circuit it is connected to. When the excess voltage has been removed, the device switches back into its conduction mode and allows current to continue flowing in the normal direction.

The SMCJ28CAHE3/57T has a low working voltage of 28V, a maximum surge power of 800 watts, and a peak pulse current of ± 10A, allowing it to provide excellent protection against high-voltage transients. It also features excellent clamping performance, with a maximum clamping voltage of 57V, and a high thermal stability rating of 150°C.

Due to its high-quality construction and wide range of features, the SMCJ28CAHE3/57T is an excellent choice for a variety of protection applications. Its small size and excellent performance make it ideal for applications where space and power are at a premium.

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