SMAJ28A-TP Circuit Protection

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TVS (Transient Voltage Suppressor) diodes, also known as transient voltage suppressor diodes, are a class of semiconductor diodes used in electronic and electrical circuits to protect against overvoltage, as well as other transient power surges. They limit the voltage applied to the protected circuit to a safe level. They are also often used as circuit breaker devices, that will open circuitry when a certain voltage is reached. The SMAJ28A-TP is a TVS diode used to provide transient voltage protection for voltage-sensitive devices.

The SMAJ28A-TP is a bi-directional transient voltage suppressor diode designed to protect sensitive electronics and from transient voltage surges. The device is designed with a breakdown voltage rating of 28V, with a peak pulse power rating of 400 watts and a maximum surge rating of 72A. It is commonly used in automotive and automotive-related applications, such as automotive switches, ECUs, and communication modules, as well as in other applications where transient voltage protection is important.

This device also has an excellent thermal dissipation capability to ensure that any transient surge power is safely dissipated. It has a fast response time, allowing for protection of the device within the required time frame. The SMAJ28A-TP also has a wide operating temperature range from -55 degrees C to +150 degrees C, and a wide operating current range from 0.1A to 5A. These features make the SMAJ28A-TP a highly reliable and robust solution for transient voltage protections.

The working principle of the SMAJ28A-TP is fairly simple. When an overvoltage transient is applied to the device, a reverse bias is applied, which causes the diode to conduct current and thereby limit the surge voltage. The amount of current flowing through the device is determined by the breakdown voltage rating of the device. The higher the voltage, the more current is allowed to flow. When sufficiently high voltage is applied, the diode will become a conductor and dissipate the transient voltage surge. After the surge is dissipated, the diode will automatically return to its blocking state, allowing the circuit to work properly.

The SMAJ28A-TP is a versatile and rugged solution for transient voltage protection. It is designed to provide effective and reliable protection against overvoltage transients and surges in automotive and other applications. With its wide operating temperature range and excellent thermal dissipation, the SMAJ28A-TP is an ideal choice for protecting sensitive electronics from transient voltage surges.

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