BFC237890056

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Film capacitors, also known as plastic film capacitors, are a type of capacitors made of plastic film as the dielectric, which has a large capacity and stabilizing capacitance, is non-polar, has good insulation performance and is moisture-proof. The BFC237890056 is a type of film capacitor specifically designed for higher power applications. In this article, we will discuss its application field and working principle.

Application Field

The BFC237890056 is primarily used in traditional power technology as a power supply filter capacitor. It can filter out ripple voltage, reduce switch interference, filtering out high frequency interference, and provide low frequency filter functions. Its ripple current capability is typically 3-4 times that of a single aluminum electrolysis capacitor of similar voltage rating. It is also widely used in non-contact switching power supplies, high-frequency switching power supplies, single-phase and three-phase rectification servicing networks, relaying and other industries. It is especially used extensively in the military, industrial, medical, and audio industries.

Working Principle

The BFC237890056 film capacitor consists of a plastic film as the dielectric, a pair of positive and negative electrical contacts connected to the metalized regions of the film for power lead connections, and a pair of positive and negative electrical connectors to ground the capacitor. The basic working principle of the defect structure is based on the electrical equivalent circuit. When the capacitor is charged, the opposite electrons will repel each other, creating a static electric field and generating a voltage difference between the two electrodes. The electric field strength increases linearly with the voltage, and when it reaches the maximum, the electric field will break through the dielectric and discharge the capacitor.

The most important parameters of the BFC237890056 are its rated voltage, dielectric constant, capacitance, leakage current, insulation resistance, maximum operating temperature, and impedance. The leakage current of the capacitor is an important factor, which affects the capacitance and affects the energy storage performance of the capacitor. The higher the insulation resistance of the capacitor, the better the insulation performance of the capacitor, and the higher the impedance of the capacitor, the better the high frequency response of the capacitor.

In conclusion, the BFC237890056 is a film capacitor designed for higher power applications, and its application field and working principle have been discussed in detail. Its high capacity and stability, non-polarity, good insulation properties and moisture proof properties make it ideal for military, industrial, medical, audio and other industries. It is an ideal choice for various projects requiring a reliable power source.

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