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Diodes - Zener - Single

The 2EZ200DE3/TR8 is a single-diode Zener, which is a form of semiconductor diode designed specifically for voltage regulation. This type of diode can be used in a wide range of applications, from power semiconductor protection modules to voltage references and protection circuits. In order to understand the working of these diodes, one must first gain an understanding of the general principles of Zener diodes.

Working Principle of Zener Diodes

Zener diodes are basically reversed bias PN junction diodes that have a silicon-based construction. They have a specially tailored doping profile, which allow them to regulate the voltage across the semiconductor junction. When the reverse bias voltage exceeds the Zener breakdown voltage, the valence band electrons are pushed across the junction and cause a heavy current flow through the diode, known as avalanche breakdown. This current flow causes the voltage across the diode junction to become more regulated and fixed.

The 2EZ200DE3/TR8 Zener diode has a breakdown voltage of 200V, meaning it will regulate voltage across the junction for any reverse biases up to 200V.

Applications

One of the main applications of the 2EZ200DE3/TR8 diode is in the protection and surge suppression of power semiconductors. The Zener diode can be used in series with the power semiconductor in order to protect it from high voltages, such as transients or spikes due to inductive switching. The diode will limit the voltage across the power semiconductor by clamping it to the breakdown voltage, thus preventing damage.

Another application is in voltage references and protection circuits. For example, the diode can be used as a voltage reference to provide the necessary precision, accuracy and stability. In protection circuits, it can be used to provide over-voltage protection by ensuring that the applied voltage does not exceed the maximum breakdown voltage of the Zener diode.

The 2EZ200DE3/TR8 Zener diode can also be used as a voltage regulator in various electronic and electrical systems, as well as limiters in power supplies. It can also be used to generate threshold voltages for low-current applications such as triggering logic levels in ICs.

Conclusion

The 2EZ200DE3/TR8 is a single-diode Zener diode with a breakdown voltage of up to 200V. This diode can be used in a wide range of applications, from power semiconductor protection modules to voltage references and protection circuits. It can also be used as a voltage regulator, limiter and threshold voltage generator for low-current applications. It is a versatile semiconductor component that is a must-have for any engineer designing power and voltage management systems.

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