It turns out that film capacitors have so many benefits

Film capacitors are commonly used electronic components in our electronic products. Film capacitors use metal foil as electrodes, overlap it with plastic films such as polyethylene, polypropylene, polystyrene or polycarbonate at both ends, and then roll it into a cylindrical structure. We can see film capacitors in many circuits. What are its advantages? What are its functions?

No.1

The volume is small.

Since film is used as dielectric, film capacitors can be made into very small size, so that installation will not take up too much space. For example, KYET's CBB21X ultra-small polypropylene film capacitors, CL21X ultra-small polyester film capacitors, CL11 polyester capacitors, CL23B correction capacitors, etc., the volume can all be made very small.

No.2

The capacitance value is large.

Compared with electrolytic capacitors, the capacitance of film capacitors is relatively small, but compared with ceramic capacitors, film capacitors can be manufactured with larger capacitance values, which means they can store more electrical energy.

No.3

Good stability.

The stability of film capacitors is significantly better than that of electrolytic capacitors and ceramic capacitors, and it is not easy to change performance due to long-term use or environmental changes. It has a long lifespan, and qualified film capacitors can be used for 5-10 years without any problems.

No.4

It has self-healing properties.

Film capacitors have self-healing properties, which is a feature of film capacitors. It can be divided into discharge self-healing and electrochemical self-healing. Because of this feature, film capacitors often do not need to be replaced when they are damaged. In many cases, they can self-heal, thus reducing the cost of replacing capacitors, reducing maintenance costs, reducing troubleshooting, and reducing the time wasted when the machine fails,etc.

No.5

High operating frequency.

Film capacitors can usually work normally at higher operating frequencies. For example, KYET's CBB81 resonant capacitor and MMKP82 double-sided metallized capacitor can all work stably in high pulse circuits.

No.6

Low leakage current.

The insulating film of film capacitors usually has high dielectric strength and low leakage current, which can effectively reduce circuit power consumption and noise. The internal temperature rise of the capacitor is also very small, and the heat generated by itself is very small.