ESRL390M04R

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Aluminum-polymer capacitors have become more widely used in various applications due to their characteristics of excellent performance, high power density and long life cycle. ESRL390M04R, a aluminum-polymer capacitor, is widely used in modern electronics because of its outstanding performance and wide range of applications. This article will discuss the application field and working principle of ESRL390M04R.

Application Field

ESRL390M04R aluminum-polymer capacitors are specifically designed for use in high-power, high-voltage digital systems, and are ideal for replacing traditional aluminum electrolytic capacitors. With the advantages of large capacitance and extremely low ESR, it is widely used in power supply with high precision digital circuit of mobile devices, photography instruments, networking, telecom and audio equipment.

For example, they are used in smart phones and laptops in the switching power supply where they are used as power filter and output capacitor. They are also used in sound systems as an amplifier power filter as they have very low impedance and ripple. Additionally, they are used in car audio systems as filters and power supply noise suppressors. Furthermore, they are also used in high-reliability equipment that requires very robust performance.

Working Principle

ESRL390M04R aluminum-polymer capacitors consist of a thin polymer film sandwiched between two aluminum electrodes. It is this structured design that allows for high current, high voltage, and high temperature operation. The polymer provides a dielectric that allows for the higher voltage and current requirements, while the aluminum provides the low impedance needed for high frequency applications. Due to its highly advanced structure, the capacitors can operate at much higher temperatures and at higher frequencies than traditional aluminum electrolytic capacitors.

The basic working principle of an aluminum-polymer capacitor is essentially the same as that of an electrolytic capacitor. When a potential difference is applied between the two electrodes, a charge is stored on the dielectric material. This charge will remain stored as long as the applied potential difference is maintained, thus allowing the capacitor to store energy over a finite amount of time. It is this energy storage capability that makes aluminum-polymer capacitors useful in a variety of applications.

In conclusion, ESRL390M04R is a high-performance aluminum-polymer capacitor that is widely used in many applications. It is specifically designed to operate at high power, high voltage and high temperature, and can be used in a wide variety of applications. The application field and working principle has been discussed in this article, and it should be noted that these capacitors offer excellent performance, high power density and long life cycle.

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