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Film Capacitors

QAP2J684KRP application field and working principle

Film capacitors are an important part of today\'s growing electrical industry. They are used in applications ranging from power supplies to mobile device charging, and in numerous other applications as well. The QAP2J684KRP is one of the most versatile film capacitors available today and has many uses. This article examines the application field and working principle of the QAP2J684KRP.

Application Field

The QAP2J684KRP is a surface-mountable film capacitor that can be used in a wide variety of applications. For example, it is suitable for use in DC/DC converters, LED backlight driving circuits, AC motors, LED light dimming systems, inverters, power factor correction, and filter/smoothing applications. It offers both high capacitance and stability over a wide range of temperature and frequency, making it a valuable tool for these and many other applications.

Working Principle

The QAP2J684KRP is a non-polarized film capacitor that is composed of multiple layers of thin dielectric films, each with a molecule-like structure. The dielectric films are laminated together in an alternating arrangement to form the capacitor. The film capacitor typically holds its charge even after the power is removed, thereby creating a steady state electrical field. This electrical field can be used to capacitively store energy.

The QAP2J684KRP is a self-healing capacitor, meaning that it will heal itself if the dielectric material becomes damaged. This is due to the fact that the layers of the dielectric films are so thin that the electrical charge can flow across the material even in the presence of a damaged film. As the charge flows across the film, it repairs the damage.

Conclusion

The QAP2J684KRP is a versatile and reliable film capacitor that is ideal for many applications. Its self-healing properties make it especially useful for applications that require long-lap time or high power levels. Additionally, the capacitor offers good capacitance and stability over a wide range of temperature and frequency. As such, the QAP2J684KRP is an excellent choice for a variety of applications and can provide reliable performance for many years.

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