158X104

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Film capacitors, also known as plastic film capacitors, are capacitors that use plastic films as mediums to provide electrical insulation. The 158X104 application field and working principle of film capacitors are very broad.

The 158X104 application field of film capacitors is mainly used in fields where the general requirements for insulation performance and safety performance are higher such as microwave ovens, induction cookers, DC-AC inverters, and power supplies for PCs. Film capacitors have many advantages such as: small volume, large capacitance, reliable insulation performance, strong anti-interference, high temperature resistance, no leakage, excellent stability, and long life.

The working principle of film capacitors is based on the principle of Dielectric. The capacitance is related to the thickness of the film, the area of the electrodes, and the relative permittivity of the dielectric material. The amount of energy stored in the capacitor is proportional to the product of the capacitance and the square of the applied voltage.

The dielectric materials that are used in film capacitors are commonly polyester (Polyethylene Terephthalate, PET), polypropylene (PP) or polystyrene (PS). Generally speaking, PET dielectric materials are preferred due to their excellent dielectric properties. The film capacitor has a self-healing ability, which means when an overcurrent passes through a capacitor, it is possible to restore thecapacitor\'s original performance.

Moreover, when comparing film capacitors to other types of capacitors like ceramic capacitors, aluminium electrolytic capacitors, and tantalum electrolytic capacitors, the film capacitor has the advantages of lower cost, smaller size and weight, and higher insulation characteristics.

In conclusion, film capacitors are one of the most commonly used capacitors in today’s electronic products. Their 158X104 application field and working principles are widely used, and make them indispensable in the production of numerous varieties of electronic components.

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