MKP386M468125JT7

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Film Capacitors

Film capacitors are electronic components in which the dielectric material is an extremely thin plastic film with very low dielectric losses that provides excellent insulation performance and stability over time. As the name implies, they are primarily used in capacitive circuits, where they can store energy and help to control the frequency in time-sensitive applications. They are also widely used in other types of circuits, such as filter and power supply circuits. The MKP386M468125JT7 is a film capacitor with a variety of applications.

Types of Film Capacitors

Film capacitors are available in two main types: metallized and plastic film. Metallized film capacitors are constructed by impregnating two metal electrodes onto a thin film, usually plastic, which serves as the dielectric. The metal layers form an electrical bridge and create a capacitive element. Plastic film capacitors are constructed with two layers of plastic film, usually polyester or polypropylene, and two metalized electrodes. The dielectric layers are made from crystallized polymeric material and are inserted in between the two metal electrodes, forming an integrated capacitive element.

Applications of the MKP386M468125JT7

The MKP386M468125JT7 is a film capacitor with a maximum operating temperature of -55°C to +125°C and a rated voltage of 500V. It has a wide range of applications, including high-frequency pulsation noise suppression and anti-interference for electronic circuits, as well as AC power line snubber circuits and switch power supplies, DC power supplies, LED lighting systems, and LED display screens. In addition, it can also be used in the input path of AC/DC circuit, the output path of DC/DC circuit, the cut-off filter of the equipment, the rectifier filter of communications equipment, and the filter capacitor of motors and transformer circuits.

Working Principle of Film Capacitors

The working principle of film capacitors is based on the accumulation of electric charge. When a voltage is applied across the plates of the capacitor, a current flows through the capacitor, which causes a charge to be accumulated on the plates. This charge causes an electric field to be created between the plates, which opposes any further displacement of the electrons. As long as the voltage is maintained, a steady state of charge will remain between the plates of the capacitor. When the applied voltage is removed, the capacitor will slowly discharge the accumulated charge.

Advantages of Film Capacitors

Film capacitors offer several advantages over other types of capacitors due to their high insulation resistance, high operating temperature rating, and low Leakage current. Their temperature stability helps to reduce the risk of electrical breakdown in harsh conditions and the low leakage current prevents unwanted discharges of energy. In addition, their non-polarized nature eliminates the need to worry about connecting them in the right direction, and their compact size makes them ideal for applications where space is at a premium.

Conclusion

The MKP386M468125JT7 is a film capacitor with a maximum operating temperature of -55°C to +125°C and a rated voltage of 500V. It is widely used in a variety of applications, including high-frequency pulsation noise suppression and anti-interference for electronic circuit, as well as AC power line snubber circuits and switch power supplies, DC power supplies, LED lighting systems, and LED display screens. Film capacitors offer several advantages over other types of capacitors due to their high insulation resistance, high operating temperature rating, and low leakage current, making them an ideal choice for many applications.

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