MKT1817282256G

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Film Capacitors

The MKT1817282256G is a film capacitor that is widely used in many electronic and electrical applications. This type of capacitor is designed to be used in high voltage and high frequency applications or in low voltage and meter frequencies. The MKT1817282256G is a “multi-layer” type film capacitor, which means that it has several stacked layers of metal-insulated dielectric material inside. This type of capacitor is very popular because it is highly stable and very efficient.

Application Field of MKT1817282256G Film Capacitors

The most important application fields of MKT1817282256G film capacitors are power supply applications, switching power supply, resonance frequency circuit, LED driver and EMI filtering circuit. In power supply applications, these capacitors are used to buffer voltage, filter ripple, maintain voltage stability, and reduce harmonic distortion.

The MKT1817282256G film capacitor can also be used for switching power supply, as it is capable of dealing with frequent voltage fluctuations or a continuous high-power current output. In this kind of application, these capacitors are used as both input and output capacitors for bridgeless power factor correction and EMI filtering. The resonance frequency circuit is also a common application of the MKT1817282256G, where these capacitors are used to create resonance of high frequency circuits.

The LED driver is another important application of the MKT1817282256G film capacitor. The LED driver uses these capacitors for filtering and smoothing the input voltage and providing a stable output current. In EMI filtering circuits, these capacitors work to suppress electromagnetic interference and improve signal integrity.

Working Principle of MKT1817282256G Film Capacitors

The working principle of the MKT1817282256G film capacitor lies in its construction. The capacitor consists of several stacked layers of dielectric material, such as polyethylene terephthalate (PET), sandwiched between two layers of metal foil (aluminum and steel). The electrical charges of the aluminum and steel layers are initially balanced, thus forming a non-conducting layer between the two. When an electric field is applied, the electric charges of the two layers are imbalanced, resulting in a net electric field and the capacitor charging up.

The electrical charges of the two layers of dielectric material are mutually attracted and repelled depending on the amount of the electric field applied. This attraction and repulsion creates an electromotive force (EMF) which causes current to flow. The stored electric energy is then released when the electric field is removed.

When used in an electrical circuit, the MKT1817282256G film capacitor helps to reduce voltage ripple, control harmonic distortion, absorb transient voltage spikes, and improve the performance of the circuit. The capacitor can also be used as a damping element to reduce frequency response time.

Conclusion

The MKT1817282256G is a popular film capacitor that is used in many electronic and electrical applications. This type of capacitor is made up of several layers of metal-insulated dielectric material which creates an electromotive force when an electric field is applied. Common applications include power supply, LED driver, switching power supply, resonance frequency circuit and EMI filtering circuits.

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