Varistor is an all-too-familiar word for technical engineers. So for the small white project, it should be a time to deeply understand and explore the function and performance of the varistor. Xiaobian here will not be around the topic, here? Kester technology Xiaobian brings you: the basic performance of varistor in circuit function and protection. The following is the analysis of the data prepared by Xiaobian for you:

Varistor is a special resistance device whose resistance value changes significantly with the change of current or voltage. Therefore, varistors are often used in circuits for the suppression of fast electromagnetic interference, and for the protection of overvoltage and overcurrent in circuits. In some applications, the role of varistor series is also widely used. The role of varistors in series is to expand the operating voltage range of the circuit and enhance the stability of the circuit. Normally, varistors are connected in series in the circuit.

The types and purposes of fuse classification, as well as the use of fuses, make our electricity safer. Fuses use the hot melt method to protect products. When the current exceeds the specified value, fuses use the heat generated by themselves to fuse the melt and disconnect the circuit, which is an electrical appliance. Fuses are widely used in high and low voltage distribution systems, control systems, and electrical equipment. As short circuit and overcurrent protectors, they are one of the most commonly used protective devices.

What is the resistance value of the fuse? Fuse refers to an electrical device that uses the heat generated by itself to fuse the melt and disconnect the circuit when the current exceeds the specified value. A fuse is a circuit breaker that melts the melt with the heat generated by itself after the current exceeds a specified value for a period of time, thereby causing the circuit to break; A current protector made using this principle. Fuses are widely used in high and low voltage distribution systems, control systems, and electrical equipment. As short circuit and overcurrent protectors, they are one of the most commonly used protective devices.

In various electronic products, the trend of setting overcurrent protection and overvoltage protection components is increasing. The main reasons for this are summarized as follows: (1) With the demand for the development of electronic products, the functionality (integration) of ICs is also becoming stronger, and their "value" is naturally becoming more noble, so it is necessary to strengthen protection.

What are the differences between fast fuses and ordinary fuses? With the rapid development of industry, industries such as power grids, new energy, and rail transit have high requirements for circuit protection. Traditional fuses are no longer suitable for high-quality and high-strength circuit protection. The secondary demand for fuses has skyrocketed, and they have been widely used and safer in the emerging new energy and rail transit industries in recent years. Let's introduce the difference between fast fuses and ordinary fuses.