BFC233918272

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Film Capacitors comprise an important branch of electrical capacitors, and the BFC233918272 application field and working principle are key elements of this branch.

The BFC233918272 application field mainly involves power supply applications, such as inrush current protection, power smoothing and delay lines. The capacitor has a metalized polypropylene dielectric construction, which ensures it is able to withstand a wide temperature range of -55~125°C and withstand high current and voltage. Specifically, the BFC233918272 can operate at 470Vdc at 50Hz/60Hz, peak 2000Vdc, and current rating IEC rated at 4.1 x10-4 A/V2.

The BFC233918272 film capacitor’s working principle is based on the Coulomb Law, which states that the electric force between two point charges is calculated by F=Q1Q2/4πεar2. In this case, the two point charges have different polarities and therefore electrically attract each other. As the distance between the two charges is decreased, the electric force becomes increasingly stronger until, eventually, the two charges become tied together. This makes the electric force between the two charges equal zero. In a film capacitor, the two point charges are the metal plates on the two sides of the dielectric film which are separated by the dielectric film. This means that when placed in an electrical circuit the two charges which are present in the capacitor attract each other and then repel each other. This attraction and repulsion produces a build-up of electric potential which in turn produces a voltage difference across the capacitor.

As a result, when an AC waveform is applied to the BFC233918272 film capacitor, the voltage in the capacitor changes from positive to negative and back again at the same rate as the voltage waveform. This causes electrical energy to be stored in the capacitor and then released in the form of an electrical current when the voltage waveform reverses. This current is gradually decreased as the capacitor discharges. The capacitor stores energy as long as the applied voltage is higher than the stored voltage, and then releases this energy as the voltage decreases.

In conclusion, BFC233918272 film capacitors are an important branch of electrical capacitors due to their wide temperature range, high current and voltage ratings, and ability to absorb electrical energy and slowly discharge it in the form of current. They are especially suitable for power supply applications such as inrush current protection, power smoothing and delay lines. The working of the film capacitor is based on the Coulomb Law, in which two opposite charges attracting and repelling each other to produce a voltage.

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