BZV55C20

Introduction

The BZV55C20 is a single Zener diode, whose component has a wide range of applications, from stabilizing to fly back functions in electronic circuits. It is often utilized for voltage regulation, clamping, and also for switching. In this article, we will discuss the application fields and the working principle of the BZV55C20.

Application fields

The BZV55C20 diode is applied in a myriad of different applications. One of the most common uses of the BZV55C20 is in voltage regulation circuits. For instance, when the voltages passing through the circuit components undergo changes, the BVZ55C20 can be used to regulate the voltage levels. This helps keep the circuit components functioning within their specifications.

The other application of the BVZ55C20 is in clamping circuits. In these circuits, the diode is used to limit the voltage to a certain level. This is especially useful in cases when the voltage may otherwise exceed certain range and damage the device it is connected to. The diode also finds a use in switch mode power supplies, where it ensures a clean switching without any power losses.

Working Principle

The BVZ55C20 is a Zener diode, meaning that it functions under the principle of reverse breakdown. In other words, the diode conducts in the reverse direction when the voltage applied to it exceeds its threshold. This is made possible by the use of a highly doped semiconductor crystal, whose junctions could withstand high voltages in the reverse direction. A Zener diode, therefore, acts like a resistor which limits the voltage applied to a certain level.

When the voltage threshold of the diode is reached, the reverse junction breakdown starts, and the diode begins conducting in a reverse direction. The voltage drop across the diode is normally 1 to 8 volts, and the maximum current that can be allowed through it varies from 10 mA to 1.5 A. Although the power dissipation is relatively low when compared to other components, the Zener diode can still handle some amount of power, allowing it to be widely used.

Conclusion

The BVZ55C20 is a widely utilized single Zener diode. Its applications range from voltage regulation to clamping. This diode functions on the principle of reverse breakdown, wherein it allows current flow in the reverse direction when the voltage threshold is reached. This helps maintain the voltage applied to the device within the specified level and limits further damages.