BF014D0183K

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Film Capacitors

A film capacitor, also known as a plastic film capacitor, or dielectric capacitor, is an electrical capacitor that uses a thin plastic film as its dielectric, and is used for applications such as filtering and bypassing. Film capacitors are usually classified either as film foil capacitors or multilayer film capacitors based on their construction.

BF014D0183K application field and working principle

The BF014D0183K is a film capacitor designed specifically for use in applications such as DC blocking, transient suppression, EMI suppression, interference suppression, ESD protection, and power factor correction. It is a high-current, low-ESR device that is ideal for these applications. The BF014D0183K is constructed with a polypropylene dielectric that ensures high thermal stability and good mechanical strength.

The working principle of a film capacitor is based on the fact that when two layers of a plastic material with different charge properties are sandwiched together, charge is transferred between them. When a voltage is applied across the layers, a dielectric is formed, which is capable of storing and releasing energy. The electrostatic forces between the layers cause the charges to remain in a certain arrangement that prevents the current from flowing. The amount of energy stored depends on the amount of charge and the capacitance of the capacitor.

The BF014D0183K is designed for use in DC-blocking applications in which the capacitor is placed across the power supply and ground lines to prevent any DC current from flowing. In EMI suppression applications, the device is used to reduce interference by blocking and dissipating RF energy. It is also used for power factor correction—the process of increasing the efficiency—in power supplies, as well as for transient suppression, which helps protect sensitive electronics from power surges.

The BF014D0183K is especially useful for high-voltage applications due to its high voltage rating of up to 2800VAC. Its high-current rating and low ESR ensure that it can handle high levels of current. It is also very reliable, with a long operational life and low susceptibility to degradation from temperature and time.

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