What is the working state and characteristics of Zener diodes?

What is the working state and characteristics of Zener diodes?
A diode is a kind of diode with a stable circuit voltage. Because of its special internal structure, it is suitable for reverse breakdown. As long as the current is limited, the breakdown is lossless.
At this time, although the current of the diode varies over a wide range, the voltage at both ends of the diode is almost constant and stable.
Its use in the circuit is completely different from that of ordinary diodes, it has the function of stabilizing voltage, and the most important feature is that the reverse terminal voltage has a stable terminal voltage.
Zener diode is used for reverse breakdown of PN junction, and the terminal voltage does not change with the reverse current and voltage in a certain range.
The shape of the Zener diode is similar to that of some ordinary diodes, and the shell materials are mainly glass, plastic and metal.
Generally speaking, low-power Zener diodes are made of glass or plastic, while high-power diodes are packaged with a metal shell with good heat dissipation.
Because diodes are usually made of silicon semiconductors, they are also called silicon voltage regulators and silicon voltage regulators.
Zener diode parameter description: the main use of Zener diode is to stabilize voltage, and its technical parameters are similar to ordinary diodes. There are mainly five points. 1: stable voltage this refers to the reverse voltage value of the diode at both ends within its voltage regulation range, which is usually written into the stable value. The stable voltage of the diode varies with the change of working current and temperature, but this change is not obvious. Different types of Zener diodes usually have different stable voltages. Even if it is the same type of product, the voltage regulator cannot be the same. Choices should be made as needed.