CZRU12VB

CZRU12VB Application Field and Working Principle

CZRU12VB is a single Zener diode. It is a two-terminal device with a very high reverse breakdown voltage Vz. It can be used to regulate voltages and form voltages references, as well as to protect circuits from harmful or excessive voltages.

A Zener diode is made up of a small piece of heavily doped p-type semiconductor material and a larger heavily doped n-type semiconductor material. The junction between the two pieces forms the zener breakdown region. When the applied voltage exceeds the zener breakdown voltage, electrons will flow from the n-side to the p-side and a current will be established.

Variation of Zener Voltage

It is normal for the Zener voltage to vary somewhat from its nominal value. This is due to the Zener diode\'s sensitivity to temperature. When the temperature of the environment is increased, the breakdown voltage of the Zener diode increases, and when the temperature of the environment is decreased, the breakdown voltage of the Zener diode decreases.

CZRU12VB Application Field

The CZRU12VB is commonly used in voltage regulation, voltage-shifting and reverse-voltage protection circuits. It can be used for 8 Volts to 30 Volts voltage regulation, as a voltage reference in power converters, power supplies, and converters, and in linear regulating circuits.

CZRU12VB Working Principle

When the applied voltage across the CZRU12VB diode reaches the Zener voltage, a small current will be conducted by the device and a current will be established. This current can be used in several ways such as a reference, a regulator, or a switch. In the latter case, the current will increase quickly (a few microseconds) and then level off at the same current. As the applied voltage increases, the current levels off and the output voltage remains constant.

Conclusion

The CZRU12VB is a single Zener diode that is useful in many applications. It can be used for voltage regulation, voltage-shifting, and reverse-voltage protection. It is also temperature-sensitive, so the Zener voltage can vary from its nominal value. Its working principle is based on the formation of a small current when the applied voltage across the device reaches the Zener voltage.