Zinc oxide varistor cannot tolerate over-voltage or long-term power frequency voltage, short circuit and breakdown failure will occur, and thermal breakdown (large current) will occur. The varistor just replaced also broke down. The damage of varistor can be divided into two categories:1. The produc

Varistor is an electronic component with significant non-ohmic conductor properties. The resistance value will change with the external voltage, so its current and voltage characteristic curve has significant non-linearity. varistor is widely used in electronic circuits to protect circuits from dama

The purpose of applying the varistor is different depending on the application, the voltage or current stress acting on the varistor is different, and the requirements for the varistor are also different. Depending on the purpose of use, varistor can be divided into two categories: varistor for prot

The varistor is generally used in parallel in the circuit. When the voltage across the resistor changes and exceeds the rated value, the internal resistance of the resistor becomes sharply small, showing a short-circuit condition, and the current fuse connected in series is blown to protect. The var

Ordinary electric mosquito repellents require manual switching, and inferior electric mosquito repellents require plugging and unplugging the power head to switch. If the user forgets to turn off the power when using it, it will not only cause waste of chemicals and electric energy, but also easily

The varistor is a voltage limiting type protection device. Using the non-linear characteristics of the varistor, when an overvoltage occurs between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value, thereby protecting the latter circuit. The main p

The varistor is a voltage limiting type protection device. Using the non-linear characteristics of the varistor, when an overvoltage occurs between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value, thereby protecting the latter circuit. The main p

Varistors are already indispensable electronic components in life. They are mainly used to clamp voltage when the circuit is under overvoltage, and absorb excess current to protect sensitive devices. A varistor is a component with transient voltage suppression that can be used in place of a combinat

The varistor is a voltage limiting type protection device. Using the non-linear characteristics of the varistor, when an overvoltage occurs between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage value, thereby protecting the latter circuit. The main p

The varistor is a voltage-limiting protection element that absorbs or releases the lightning induced overvoltage and the operating overvoltage present in the line. At the same time, as a component of the line system and equipment, it must also withstand the temporary over-voltage of the low-voltage