947D571K122DGRSN

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Film Capacitors

Film capacitors are one of the most popular types of electronic components available today, and the 947D571K122DGRSN is a great example. These capacitors are also known as polyester capacitors or AC capacitors and are used in a broad range of applications. To understand what these components do and why they are so important, let’s take a look at the 947D571K122DGRSN film capacitor and its application field and working principle.

Application Field

Film capacitors are suitable for a wide range of applications, including AC coupling, DC blocking, power line filtering, low-noise signal processing, and general signal conditioning. They are also used in a variety of specialized and industrial applications, such as for the protection of circuits from voltage spikes, noise filtering, and for the reduction of high frequency interference from power sources.

The 947D571K122DGRSN film capacitor is specifically designed for AC filtering circuits, which requires capacitors that can handle high AC voltages and have a high energy rating, which makes them ideal for AC power supplies, power inverters, UPS systems, and other AC power circuits. Additionally, they can be used in DC circuits, providing a stable DC output voltage.

Working Principle

Film capacitors, including the 947D571K122DGRSN, work on the principle of electrostatic energy storage. A small electric charge is stored between two metal plates, separated by a dielectric material. This dielectric material can either be made of a polymer film or a ceramic material. The 947D571K122DGRSN film capacitor uses a polyetherimide (PEI) dielectric material.

The size and type of the dielectric material determines the capacitance of the capacitor. The thicker the oxide layer, the higher the capacitance of the component. The 947D571K122DGRSN is a high capacitance, low ESR (Equivalent Series Resistance) capacitor, meaning it is capable of storing more energy and is more efficient than lower capacitance varieties.

The 947D571K122DGRSN film capacitor is also equipped with two metal plates, which serve to efficiently store the electricity. The two plates are separated by an insulating dielectric material. This construction is similar to that of other types of capacitors, such as ceramic and electrolytic capacitors.

The 947D571K122DGRSN also has an important feature that makes it a great choice for AC filtering applications: it has a low ESR. ESR stands for “equivalent series resistance,” which is an important parameter for the efficiency of an AC power circuit. The ESR of a capacitor is the total resistance of the circuit, including both the capacitive reactance and the resistance of the internal metal plates.

In conclusion, the 947D571K122DGRSN film capacitor is a versatile and reliable electronic component that can be used in a variety of AC and DC applications. It has a high capacitance rating and a low ESR, which makes it ideal for high voltage AC filtering circuits. It is also suitable for a variety of specialized and industrial applications, such as for the protection of circuits from voltage spikes, noise filtering, and for the reduction of high frequency interference from power sources.

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