Why film capacitors are better than metal foil capacitors

There are film capacitors and metal foil capacitors in the market. But more using film capacitors, why? According to the principle, film capacitors generally do not have short-circuit failures. Metal foil capacitors often have short-circuit failures, so film capacitors dominate. And a few points of concern.

1. The ability to withstand large currents is low. A good approach has been proposed on this issue. Double-sided metallized films are used as electrodes to enhance the thickness of the metallization layer. At the same time, the cross-section metal process is further improved to reduce contact resistance and compensate for its role in power factor. Film capacitors are stored in a plastic shell, which controls the size consistency, excellent flame retardancy, good self-healing, and very high reliability. Film capacitors have been widely used in filtering, noise reduction, and low-pulse circuits.

2. Performing power factor 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 loads and are inductive. Other forms of devices that can be converted into electrical energy are called apparent power provided by the power supply. Only a portion of the apparent power is converted into a useful amount.

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