B25838T6605K

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Film capacitors, commonly referred to as film capacitors, are made of multiple layers of insulation film. The two electrodes of the film capacitor can be placed on both sides of the insulation film, and the diameter of the conductor is slightly larger than that of the inner layer, which can produce a certain capacitance when the voltage is applied. B25838T6605K is a kind of film capacitor, and its application field and working principle are introduced as following.

Application field

As a film capacitor, B25838T6605K has many application fields. Generally speaking, it’s widely used in AC, DC, and pulse circuits, where it can eliminate AC circuit noise, smooth DC ripple, filter circuit and adjust phase in AC circuits as a high frequency and low impedance filter component. Besides, it also can be used in electronic ballast of fluorescent lamps and most electronic circuits together with other components. In addition, this disposable film capacitor can also take a couple of ultra-high voltage power lines in conjunction with spark gaps, lightning arrester, etc. for the transmission of VC converters with a rated voltage as high as 5kV (three-phase 10kV). As a result, B25838T6605K electronic film capacitors are essential components of the circuit.

Working principle

The working principle of B25838T6605K film capacitor is the same as that of ordinary capacitors: the capacitor is used to store electrical energy, and the stored electrical energy is equal to 1/2CV². In an AC circuit, when a certain value of AC voltage is applied between the two electrodes of the film capacitor, an electric current flows through the circuit, which brings energy cut and produces electric charge on both ends of the capacitor plate. After the capacitor accumulates enough charge, the value of the current in the middle of the AC cycle is reduced to zero and the current starts to flow in the opposite direction, so that the capacitor discharges energy, and the transfer of energy between the capacitor and the AC circuit is carried out cyclically. Moreover, the capacitance of the capacitor is determined by the area of the plate and the distance between the plates. Therefore, the surface area of the conductor and the distance between the electrode layers of the film capacitor have a great influence on the capacitance of the film capacitor.

In conclusion, B25838T6605K film capacitor, as a kind of capacitor, is widely used in AC, DC, and pulse circuits. It is able to eliminate AC circuit noise, smooth DC ripple, filter circuit and adjust phase in AC circuits. The discharge of energy of the film capacitor and its capacitance is mainly determined by the surface area of the conductor and the distance between the electrode layers of the capacitor.

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