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Film Capacitors

DPPM12D22K is one of the most common film capacitors on the market today. It offers a wide range of applications and performs well in different working conditions. In this article we will look at its application fields and how it works.

Application Fields of DPPM12D22K

DPPM12D22K is mainly used in industrial applications, such as motor drives, medical apparatus, and power supplies. It also serves as an audio frequency transducer, a buffer, and a voltage divider. It is a reliable choice for high-frequency noise filtration, power conversion, and stabilization.

DPPM12D22K is widely used in automotive, consumer electronics, and lighting applications. Its operating temperature range of -55 to +85°C and its low ESR and good thermal stability make it an ideal choice for automotive applications. It is also suitable for home appliances and consumer electronics, such as LED lighting, air conditioners, and water purifiers.

Working Principle of DPPM12D22K

DPPM12D22K is a type of film capacitor that uses a plastic film as its electrodes and and two metallic plates as its electrodes. It is a non-polarized capacitor that can store electrical charge and is used to filter out high-frequency noise or to provide a grounding point for a circuit. When an electric current is applied, the metallic plates are attracted to it and the plastic dielectric (film) is attracted to the metal plates. This results in an electric field between the plates and the film, which causes the capacitance of the film capacitor due to the dielectric material properties.

When an alternating current is applied to the film capacitor, its capacitance varies with the applied voltage and frequency. This variation in capacitance gives the DPPM12D22K its ability to provide filtering for high frequency noise, and to act as a buffer, voltage divider, and audio frequency transducer.

Conclusion

The DPPM12D22K is a reliable and versatile film capacitor that can be used for many different applications. Its wide operating temperature range, low ESR, and good thermal stability make it suitable for use in industrial, automotive, consumer electronics, and lighting applications. The working principle of the DPPM12D22K is based on its ability to store electrical charge and vary its capacitance in response to varying voltage and frequency, allowing it to work as a high frequency noise filter, buffer, voltage divider, and audio frequency transducer.

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