Why is the film capacitor better than the metal foil capacitor?

Both film capacitors and metal foil capacitors are used on the market. Why are there more people using film capacitors? According to the principle, film capacitors generally do not have short-circuit failure, but metal foil capacitors often suffer from short-circuit failure, so film capacitors have many advantages. But there are a few points that are worthy of attention:

1) The ability to withstand large currents is not high. However, at present, a good method has been proposed on this problem. It is possible to use a double-sided metallized film as an electrode, and also to enhance the thickness of the metallization layer, and at the same time further improve the section metal process and reduce Contact resistance compensates for its role in the power factor. The film capacitor is sealed with a plastic case to control the consistency of the scale. It has excellent flame retardant properties, good self-healing properties, and very high reliability. The film capacitor has been widely used in filtering, noise reduction and low pulse circuits. .

2) Power factor compensation is a very important application of film capacitors in power technology. Many devices on electricity that convert electrical energy into other forms of energy are called inductive, and other forms of energy that can be converted into electrical energy are called power supplies. The apparent power is only partially converted into useful power. The amount.

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