BFC233848165

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Film capacitors, also known as plastic film capacitors, are manufactured using a plastic film as the dielectric by winding metal electrodes into a cylindrical or tubular shape, then encapsulating the construction in a rectangular plastic case. The application field of BFC233848165 type film capacitor is wide, mainly used in SMPS with heavy rectifiers & filters as well as abnormal frequency & high temperature stabilizing components.Film capacitors feature high insulation resistance, low loss, high temperature stability, and long life. This makes them ideal for high-frequency and high-temperature load equipments. The rotating speed of motors is also stabilized by using film capacitors. They are also used in diode bridges, DC motor drives, switching power units, television sets, computer units, and many other industrial and electronic products.The working principle of a BFC233848165 type film capacitor is based on the capacitance between two electrical conductors across an insulating material. When a voltage is applied on two parallel conductors, electric charge collects at both the conductors. This electric charge creates an electric field across the insulating material. This electric field accumulates electric charges and also serves as a medium to permit the flow of charge.The capacitance of a film capacitor depends on the ratio of its conductor to dielectric area. The surface area of its terminal posts, geometry, and arrangement of conductors in sequence also affect the capacitance value. The molecular forces between the plastic film and electrodes generate a dielectric constant which provides additional capacitance.Depending on the displacement of charge from one plate to another, an overall capacitance value with the respective dielectric constant is obtained and reflects a voltage status. In physical terms, it is called “Spatial Distribution of Electrostatic Potential” which is the result of both positive and negative charges in due proportion.The voltage tolerated by a BFC233848165 type film capacitor depends on the insulation and age of the capacitor. They are also rated by the allowable continuous voltage, or maximum voltage which should not be exceeded during its normal operation. In order to provide a higher voltage tolerant performance, a specific grade of insulation material with adequate film thickness is specified.

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