ECW-FD2J125JB

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Film capacitors are widely used in electronics, lighting, automobiles, toys, and other industries, but many of them are of different types and structures. The ECW-FD2J125JB is a type of film capacitor which plays a very important role in numerous applications. This article will discuss the application field and working principle of the ECW-FD2J125JB.

The ECW-FD2J125JB is a class-X2 metalized polypropylene film capacitor. It has a standard case size of 125 in diameter and 24 ± 1.2mm in length, with a miniature imprinted terminal. The temperature range of this capacitor is from -25 deg C to +105 deg C, and its rated voltage is 250VAC in 50/60Hz. It has a low dissipation factor of 0.08 at 1kHz and a low ESR of 0.4 ohms. Furthermore, its insulation resistance is ≥15,000MΩ(at DC500V) and its capacitance range is from 0.1uF to 22uF.

The application field of the ECW-FD2J125JB is wide-ranging. It fulfils the need for effective interference suppression, especially in the interference of home appliances which require the use of many signal paths. Also, this capacitor is widely used for filtering and bypassing in power electronic applications. It can be used in AC motors as a starting capacitor in order to produce more stable energy supply while the motor is running. Finally, the low ESR and high capacitance of the ECW-FD2J125JB make it suitable for use in AC/DC LED lighting and uninterruptible power supplies (UPS).

The working principle of the ECW-FD2J125JB is based on the fact that it consists of two metalized polypropylene layers with a uniform film insulation film. The layers are arranged perpendicular to each other, simulating the behaviour of two electrical conductors separated by a dielectric. When a voltage is applied to the capacitor, the electric field lines will pass through the dielectric film and generate an electric charge on the external metal electrodes, thus building up an electric potential energy. This stored energy enables the capacitor to act as a filter or bypass, and helps to provide stable energy supply in applications.

In conclusion, the ECW-FD2J125JB is a type of film capacitor with many versatile applications. It has a standard size of 125mm in diameter and 24 ± 1.2mm in length, and a wide temperature range from -25 deg C to +105 deg C. In addition, it features a low dissipation factor, low ESR, high insulation resistance, and a capacitance range from 0.1uF to 22uF. Finally, it works by building up an electric potential energy through two metalized polypropylene layers separated by a dielectric film, which allows the capacitor to act as a filter or bypass.

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