DPFF12S22J-F

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Film capacitors are capacitors that use a modern, advanced, and high-performance polyester film as the dielectric medium. It has the characteristics of small size, high precision, stable performance, long service life, wide temperature range, and strong self-healing properties. This makes it suitable for various electronic equipment, such as power supplies, AC motors, and inverters, as well as lighting dimmers, switch mode power supplies, and telecommunications equipment. In this article, we will take a closer look at one specific capacitor model: the DPFF12S22J-F.

Application Field of DPFF12S22J-F

DPFF12S22J-F is a kind of polyester film capacitor. It is suitable for power electronic equipment, lighting dimmer, switch mode power supply and telecommunication equipment. The main characteristics are capacitance tolerance: ± 10%, wide working temperature range (-40℃~+85℃), high withstand voltage, high insulation resistance and low loss.

The DPFF12S22J-F is typically used in high current circuits which require high reliablity performance, such as power supply, AC motors, inverter, switching mode power supply, lighting dimmers, telecommunication equipment, etc. It is also ideal for circuit applications that require high accuracy, stability, and a long life, such as precision electronic circuits, noise reduction circuits, wave filters, voltage stabilizers, line drivers, contactors, and high stability OSC.

Working Principle of DPFF12S22J-F

We know that the basic principles of any type of capacitor still apply to film capacitors, namely the ability to store electrical energy in an electric field. In the case of a film capacitor, an insulating film, usually a polyester film, is used as the dielectric medium.

A DC voltage source is connected to the capacitor, producing an electric field between the electrodes, which stores the energy. As the current flows through the film, the electric field between the electrodes increases, causing an increase in capacitance. As the current is reduced, the electric field decreases, and the capacitance decreases with it.

Modern film capacitors are also designed to have excellent frequency response characteristics. As the frequency of the applied voltage increases, so does the capacitance. This means that film capacitors can be used in applications where high frequency signals are present, such as switching-mode power supplies, AC motors, and telecommunications equipment.

Conclusion

The DPFF12S22J-F polyester film capacitor is an advanced and reliable component for high-current circuits requiring high levels of accuracy, stability, and a long life. It is suitable for use in power supplies, AC motors, inverters, switching mode power supplies, lighting dimmers, and telecommunications equipment, and is ideal for precision electronic circuits, noise reduction circuits, wave filters, voltage stabilizers, line drivers, contactors, and high stability OSCs.

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