MKT1818310256D

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Introduction to Film Capacitors

Film capacitors, also known as polyester capacitors, polyester film capacitors, plastic film capacitors, polypropylene film capacitors, polyester film capacitors, plastic film capacitors, polypropylene film capacitors, polystyrene film capacitors and paper capacitors, are components used to store and discharge electrical energy in an electric circuit. They are generally smaller and lighter than electrolytic capacitors and are suitable for high frequency applications. Film capacitors are permanent devices and can easily tolerate vibrations and shocks.

Types of Film Capacitors

Film capacitors are divided into two major categories: metallized and non-metallized. Metallized film capacitors are constructed using thin electrical grade aluminum or zinc deposited onto thin film. As a result, they have a very low equivalent series resistance and high self-healing capability. Non-metallized film capacitors, on the other hand, are constructed using thin plastic film with no additional layers. Due to their construction, they are very reliable and have low dissipation and losses.

MKT1818310256D Application Field and Working Principle

MKT1818310256D is a polyester film capacitor developed by MKT for use in audio frequency and high-frequency applications. The capacitor is designed for easy assembly and can be found in power supplies and switching circuits. It is made from polyester plastic film coated with metalized aluminum electrodes and its rated temperature range is from -55 to 70 degrees C. The capacitor has a voltage rating of up to 400VAC, a capacitance of 0.0047uF, and its miniature construction make it ideal for applications where space is at a premium.

A film capacitor works by using thin layers of dielectric material, such as polyester film, between two conductive plates that are insulated from each other. The electrons in one of the plates repel the electrons in the other plate, thus creating an electric field that stores energy. When the capacitor is charged, the electric field holds the charge and the capacitor remains in balance. When a voltage is applied across the capacitor, the electrons move in the direction of the applied voltage and create a current in the circuit. As the capacitor is discharged, the electric field is reduced and the voltage decreases.

Conclusion

Film capacitors are highly reliable electrical components used in a variety of applications. The MKT1818310256D is a robust polyester film capacitor designed for audio frequency and high-frequency applications. The capacitor is made from polyester plastic film coated with metalized aluminum electrodes and has a rated temperature range of -55 to 70 degrees C. Its miniature construction makes it ideal for applications where space is at a premium. Film capacitors store electrical energy in an electric field and discharge it when a voltage is applied across it.

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