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TVS - Diodes

TVS (Transient Voltage Suppressor) diodes, also known as “transorbs”, are solid state components used in electronic equipment to protect against power surges. The BZW04-31B-E3/73 is an example of this type of diode. It is a unidirectional diode designed to protect against overvoltage transients and ESD (electrostatic discharge).

Application Field and Working Principle

The BZW04-31B-E3/73 diode is designed for use in automotive, industrial, communications, appliance, and consumer electronics equipment. It has a non-clamping unidirectional operation and is capable of handling very high peak currents. Its primary purpose is to provide protection against overvoltage transients and electrostatic discharge. The device is designed to operate in either a study base or active base position, depending on the specific application.

The diode works by relying on its semiconductor material properties to limit the current flow through the device. When the device is exposed to a voltage that is higher than its reverse voltage rating, current flows through it until it reaches a level where the diode is able to limit the current. This current-limiting feature prevents the device from being damaged by excessive over voltages.

In addition, the device offers protection from electrostatic discharge. The diode acts as a resistor/capacitor network and acts as a capacitor when the circuit is exposed to ESD. This helps to reduce the flow of current and protect against component damage. It also helps to reduce the amount of noise generated by the device.

The device also offers a surge protection option, which helps to reduce the impact of power surges on the system. The device acts as a fail-safe switch and will limit the current to a safe level when power surges occur. This helps to reduce the amount of damage caused by power surges and improve the overall operation of the system.

In conclusion, the BZW04-31B-E3/73 diode is an excellent choice for applications requiring protection from overvoltage transients and ESD, as well as surge protection capabilities.

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