MKT1820322636W

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Capacitors are passive electronic components found within many electrical systems. Film capacitors, also known as film dielectric capacitors, are a type of capacitor that use a film as a dielectric material. The MKT1820322636W is a polypropylene film capacitor from a popular vendor. It is a general-purpose capacitor suitable for a wide range of applications.

Uses

The MKT1820322636W has many uses in basic electrical systems. It can be used for power supply bypassing and as a coupling capacitor for blocking direct current while transmitting audio frequency or low-frequency signals. It is suitable for decoupling and filtering applications. In addition, this type of capacitor can be used for power factor correction and as a snubber. Other applications for the MKT1820322636W include ac motor starting, lighting, motor control and frequency control.

Working Principle

The working principle of a film capacitor is simple. It utilizes a film as a dielectric medium between a pair of electrodes. When the capacitor is charged, the electric field created by the charged particles on the film causes a displacement of the charge carriers and the resulting polarization field creates an electric field of its own in the opposite direction. This produces an oppositely charged electric field in the two electrodes, which are thus attracted to each other and form electrical capacitance.

Advantages

Film capacitors offer several advantages compared to other types of capacitors, which make them ideal for many applications. They provide excellent stability, which is not affected by temperature, humidity, and pressure. They have low losses over a wide range of frequencies. They have low ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance). They are also relatively smaller and require minimal space to install. In addition, film capacitors are highly reliable and have low levels of leakage.

Drawbacks

The main disadvantage of film capacitors is their limited capacitance values. As a result, they are not suitable for applications where high capacitance is needed. They also can be relatively expensive compared to other types of capacitors. THEIR

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