BZX79-C7V5,113

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Diodes - Zener - Single

The BZX79-C7V5,113 is a common Zener diode which falls among specific types of diodes known as single Zener diodes. Their main purpose is to utilize the reverse breakdown voltage across the diode junction, with the intent of regulating the voltage coming from a source by diverting excess voltages away. With the introduction of this diode, the voltage range is limited to 5.6 volts.

Applications

Zener diodes in general are utilized for many applications ranging from overvoltage protection, voltage regulation, and even current regulation. With the BZX79-C7V5, the specific application fields include radio, refrigeration, industrial equipment, and communication technology. In the field of radio, they can be found providing overvoltage protection, while in refrigeration they can help regulate the thermostat and current levels. In industrial equipment, they are ideal for providing protection from surges in voltage which could cause electrical components to overheat, or even become damaged. Finally, in communication technology, they help power transmissions and ensure proper voltage levels throughout the network.

Working Principle

The working principle of this device is fairly straight forward. It takes in a given voltage from a source, the excess of which is then diverted away. It does this by taking the excess voltage, and running it through the junction of the diode; the breakdown voltage, which optimizes the result at 5.6 volts or lower. This way, the detrimental overvoltage is eliminated.

The diode will enter the breakdown region at a certain breakdown voltage determined by the BZX79-C7V5,113’s construction; when it goes beyond the breakdown voltage, it will result in a large current flow. This is because, in the breakdown region, the barrier of negative charge widens, and the resistance of the diode lessens. For the BZX79-C7V5, this is typically 5.6 volts. This enables the current to start flowing through the junction even with a reverse bias, which helps regulate the voltage coming from the source.

Conclusion

In conclusion, the BZX79-C7V5,113 is a single Zener diode designed primarily for voltage regulation at 5.6 volts or lower. Its application fields can range from radio and refrigeration, to industrial equipment and communication technology. The working principle is a simple one, where the diode will enter the breakdown region at the determined breakdown voltage and the excess current is then diverted away. With the single Zener diode, these applications and more are made possible for many electronics.

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