BFC2373GF105MI

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Film capacitors, which are also known as film dielectric capacitors or plastic film capacitors, are electrical components that are widely used in AC applications such as high-frequency circuits, inverters, and switching power supplies. Among them, BFC2373GF105MI, which is a two-layer metallized polypropylene film capacitor, is a typical example of film capacitors. Its application field and working principle are discussed in this article.

Application Field

BFC2373GF105MI film capacitors are widely used in many fields such as AC motor, air-conditioners, refrigerator, washing-machine, lighting, aviation and electronic industry. It is one of the most reliable and efficient capacitors on the market.

The ultra-low dielectric loss of BFC2373GF105MI is the main advantage of this product. This kind of capacitor has good temperature stability, superior AC performance, and low ESR, which makes it suitable for applications such as power supplies, high frequency circuits, and switched mode power supplies. BFC2373GF105MI can be made to match various AC line frequencies and load levels. This capacitor performs reliably and efficiently in both single- and three-phase bridges.

Working Principle

The construction of BFC2373GF105MI film capacitors consists of two layers of metallized polypropylene film, which are separated by a thin dielectric of polypropylene. The outer layer of the two films is sandwiched between two electrodes which are connected to the capacitor body and metal end-plates. The internal layer of the two film layers is separated from the electrodes by the dielectric.

When a voltage is applied to the capacitor, a charge builds up on the two metallic surfaces of each internal layer, creating an electric field. This electric field produces a force which pushes the two film layers together, creating a capacitance in the capacitor. This capacitance produces the electrical energy storing capability of the BFC2373GF105MI film capacitors. The higher the applied voltage, the higher the capacitance and the more electrical energy which can be stored.

In addition, BFC2373GF105MI film capacitors are self-healing, which means that when the dielectric breaks down due to heat or other external factors, the same dielectric will restore itself by forming new bonds between the two metallic surfaces.

Conclusion

BFC2373GF105MI film capacitors have good temperature stability, excellent AC performance, and superior electrical characteristics such as low ESR, making them ideal for AC applications such as high-frequency circuits, inverters, and switching power supplies. In addition, these capacitors are self-healing, so they can still perform effectively even after their dielectric has been broken down. All in all, BFC2373GF105MI film capacitors are an excellent choice for applications where reliable and efficient performance is required.

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