ESD is actually electrostatic discharge, which refers to the transfer of electrostatic potential when an object is close to or close to it. It is also called electrostatic protection equipment internationally.

The main source of static electricity is the human body, because the contact surface of the human body is easily changed with other objects, so the human body has a lot of static electricity. In addition, the capacitance between the human body and the atmosphere is relatively low, so the natural static electricity is also very high, and the key is also prone to electrostatic induction. Then this electrostatic protector is also used to protect components against static electricity, so the effect of this kind of electronic equipment is still very good.
In order to better prevent the generation of static electricity and protect the circuit. The role of this anti-static diode in the circuit is still very obvious, and the usual state is in the off state, which will not affect the normal use of the circuit. Once there is a problem with the voltage, it will break down, thereby protecting other circuits. It should be reminded here that the electrostatic diode will naturally become a low resistance state due to the high voltage to form conduction and protect other circuits. When the abnormal overvoltage condition disappears, it can be restored as before, affecting the normal operation of the circuit.
The working voltage of ESD is usually 2.5V and 70V. The key point is that this product has a very fast response speed and a high level of integration. It is an ideal protection component in the process of anti-static. One of the characteristics of this package diversification can be seen that the effect is still very unique. We must pay more attention to these aspects, and we can see that this product has a very wide range of options and a relatively high voltage adaptability. And this product is widely used, whether it is a TV or a GPS system, this electronic component can be used. After all, many portable devices and even satellite receivers use this anti-static device. Usually, the use of this ESD electrostatic diode is still very extensive, mainly to better protect the circuit, so the use of this protection device can basically be seen in many circuits.