Advantages of film capacitor temperature characteristics

In addition to the pressure and impact resistance of the film capacitor, there are temperature characteristics. Why do editors say this, and then you know, follow the editor to explore the film capacitors you don't know, let's take a look! I hope the content of this article can help everyone!

The good temperature characteristics of the film capacitor, unlike the other capacitors, are that the dielectric material is a high temperature polypropylene film, and its temperature characteristics allow it to swim back and forth between -40 ° C and 105 ° C without being affected. After measurement, the capacitance of the film capacitor and its good brother electrolytic capacitor varies with temperature at a fixed frequency, so it can be analyzed that the gradual increase in temperature will cause the capacitance of the film capacitor to be due to the overall capacitance. Decrease and fall, but the magnitude of the decline is small, almost negligible, about 300PPM/°C; the capacitance of the electrolytic capacitor is different, and it varies greatly with temperature at any temperature. It is about 200-600 PPM/°C. The temperature characteristics of film capacitors make it less demanding in the environment, whether it is in the extremely cold northeast, the hot Taklimakan Desert or some other natural environment.