947D291K122AGGSN

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Film Capacitors

A film capacitor, or plastic film capacitor, is an electrical component made from plastic films, paper, or Mylar and aluminum foil, often used in analog audio circuits. It consist of two capacitors and a resistor and capacitor in parallel, or in series. Usually referred to as 947D291K122AGGSN capacitors, film capacitors offer excellent high frequency performance, low inductance, low ESR, and low RF interference.

Application Fields of 947D291K122AGGSN Film Capacitors

Film capacitors made by the 947D291K122AGGSN manufacturer are mainly used in signal processing circuits, RF circuits, AC power lines, clocks, amplifiers, TVs, video recorders, power Equipment circuits, and similar electronic devices. The 947D291K122AGGSN capacitors are usually made of polypropylene, dielectric plastic film. Polypropylene makes the capacitors, very small and lightweight, and are also capable of withstanding high temperature ranges and repeated temperature changes, that other materials would fail.

The film capacitors also provide excellent insulation, dielectric, heat and moisture stability. Some 947D291K122AGGSN capacitors are designed to have a low voltage and current ripple, to reduce analog audio distortion. The use of different dielectrics determine the main characteristics of the film capacitors, such as voltage, capacitance, insertion loss, inductance, operating temperature, and much more.

Working Principle of 947D291K122AGGSN Film Capacitors

The 947D291K122AGGSN film capacitors work in the same way as standard capacitors. They act like a tiny battery, storing and releasing electrical energy. When electricity flows from one end to the other, the capacitor stores the energy in the dielectric medium. When the electrical current is reversed, the capacitor releases the energy, producing an electrical field between the two plates.

The 947D291K122AGGSN Film capacitors have a dielectric layer made of polyurethane, polyester, polypropylene, polyethylene, and other plastics, that are in between two conducting plates, to create a barrier between them. When an electric Ccurrent flows through the film, the dielectric molecules are polarized, creating an electric field, and the capacitor will store the electric charge.

The specific characteristics of the 947D291K122AGGSN film capacitors are determined by the thickness, the type of dielectric, and the area of the plates. The dielectric layer creates a magnetic field between the plates, that stores energy when electric current is flowing, and then dissipates it when the electric current is reversed. The film capacitors also provide high frequency AC filtering, that helps in controlling the AC ripple.

In conclusion, 947D291K122AGGSN film capacitors are an essential part of many electronic components and devices. They provide excellent high frequency performance, low inductance, low ESR, and low RF interference, and are capable of withstanding high temperature ranges and repeated temperature changes. The dielectric layer of the film capacitor allows electric current to flow, and thus, storing and releasing electrical energy, that is essential in many electronic devices.

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