In the working principle of the circuit, it can be known that there is a product using NTC thermistor. Under normal working conditions, there is a certain current flowing through the NTC thermistor. This working current is enough to make the surface temperature of the NTC reach 100 ° C ~ 200 ° C. .

Capacitors are one of the most widely used electronic components in electronic equipment. They are widely used in the circuit of DC-blocking, coupling, bypass, filtering, tuning loop, control and so on. So what is the distribution of high voltage capacitors in the voltage? If the internal components

With the rapid development of the economy, the demand for electricity is increasing, and the construction of a strong smart grid will be vigorously promoted, and at the same time, the rapid development of the electrical instrumentation industry will be promoted. As an indispensable instrument in the

The varistor is equivalent to a variable resistor. It is connected in parallel with the circuit. When the circuit is in normal use, the varistor has a high impedance, and the leakage current is small. It can be regarded as an open circuit and has little effect on the circuit. But when a very high su

1.Protection componentFor example, a polymer positive temperature coefficient thermistor (PPTC) is a conductive polymer formed by using a special polymer mixed conductive particle. Under normal ambient temperature, the conductive particles inside the material contain a low-impedance structure, and w

There are a lot of capacitors in the creation of electronic technology, which play different functions in the electronic circuit. It is similar to a resistor, generally called a capacitor, and is represented by the symbol C. We all know that a capacitor is a "container that stores charge." Even thou

Whether the capacitor manufacturer hopes to produce it, or the electrical industry wants, the quality of the metal film capacitor is what all manufacturers hope to have. The dielectric strength is the large peak voltage that the capacitor can withstand at the rated room temperature. It can be measur

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 respon

According to the temperature coefficient, it is divided into two types: positive temperature coefficient thermistor (PTC) and negative temperature coefficient thermistor (NTC). When applying a thermistor, several of its important parameters must be tested. In general, the thermistor is sensitive to

Film capacitors use an organic film as the medium. When the voltage exceeds the rated voltage and rated current, a flame may be generated and the capacitor may be damaged. Therefore, please use it in the correct circuit. Circuit designPlease confirm that the film capacitors are used only in the rate