SMAJ48CA-13

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TVS - Diodes are one of the most widely used electronic components. The SMAJ48CA-13 are among the most commonly used TVS-Diodes that act as a form of protection for sensitive electronic devices and circuits against voltage transients. TVS - Diodes are used to ensure the safety and reliability of modern digital systems, hence their widespread use.

Apart from providing protection, these components are also used in a variety of electronic applications such as automotive, telecom, consumer, industrial, and medical markets. The SMAJ48CA-13 is designed to protect sensitive equipment from being damaged due to transients in the source power. It also helps protect the vulnerable high-temperature components in the circuit along with its protective features.

It is designed to be able to withstand the most common and aggressive voltage transient phenomena, such as electrostatic discharge (ESD) and electrical fast transients (EFT). This makes it suitable for use in a host of applications.

The SMAJ48CA-13 uses a variety of working principles to provide protection against transient-induced voltage spikes, including the Zener Breakdown, an Avalanche Breakdown, and a Temperature Switching Overvoltage Protection (TSOP).

The most common form of protection used in the SMAJ48CA-13 is the Zener Breakdown. This works by blocking increases in the voltage to a safe level, preventing the power from becoming excessive, and ensuring the safety of the equipment. The Zener Breakdown is implemented by the use of a Zener Diode. This acts as an unidirectional current flow limiter during rises in voltage, and then shunt the excess current away from the device or overvoltage circuit.

The Avalanche Breakdown utilizes a breakdown p-n junction, with the increase in current and voltage being exponentially related. The amount of voltage the p-n junction can protect against depends upon its breakdown voltage.

The Temperature Switching Overvoltage Protection (TSOP) works by sensing the junction temperature of the protection diode and switching in an external series diode if the junction temperature exceeds a pre-specified threshold. This helps to protect sensitive components by reducing the voltage spike.

In conclusion, the SMAJ48AC-13’s combination of the common protection methods gives it an effective form of protection against surges and spikes in the source power, making it ideal for use in a variety of electronic applications.

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