ECW-FD2W104J4 Capacitors

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Film Capacitors

Film capacitors or plastic film capacitors provide great frequency characteristics, small volume and low ESR (equivalent series resistance). Unlike ceramic or electrolytic capacitors, they don’t suffer from the effect of aging and are highly reliable and stable. Generally, polyester, polypropylene and polycarbonate materials are used as dielectric layer in these capacitors. Film capacitors are widely used in audio, radio, automotive and industrial applications.

ECW-FD2W104J4 film capacitor

The ECW-FD2W104J4 is a legendary film capacitor manufactured by the Taiwan-based industrial giant, Ever Corporation. It is an AC medium-voltage film capacitor with a rated voltage of 2000V, a capacitance of 22nF, a range of 105°C, and a tolerance of 10%. The capacitance is AC superimposed and its rated frequency is of 50 Hz. It is a self-healing, non-polar electrical element that is designed for anti-interference applications, like energy filtering and radiofrequency.

ECW-FD2W104J4 Application Field

The ECW-FD2W104J4 is perfect for high-voltage applications, such as AC UPS systems, power supplies, inverter and motor drives, where AC mains voltage needs to be protected. In addition, this capacitor is also suitable for DC electrostatic precipitators, and AC high-voltage applications, like lightning arrester, AC reactive power compensation, and high-voltage filtering. Moreover, this capacitor can be used in audio equipment, like audio amplifiers and speakers, as well as in signal compensators, transmitters, and communication systems, like satellite and broadcast.

ECW-FD2W104J4 Working Principle

The ECW-FD2W104J4 stores charge in an electric field between two conductive layers. Electrostatic force created between these two layers develops and maintains a voltage between them, resulting in the accumulation of charge and oppositely polarized surfaces. The electrostatic force is proportional to the surface area of the charged bodies and the strength of the electric field between them. This concept forms the basis of the capacitor. In addition, when an AC voltage is applied across a capacitor, it accumulates a charge but the value of this charge decreases when the frequency of the applied voltage is higher.

The ECW-FD2W104J4 capacitor consists of two layers of metallized pure polypropylene film separated by a thin layer of dielectric fluid. The dielectric fluid acts as a medium for charging process. This thin layer is organized into a winding, making the capacitor self-healing because of its construction with an ultra-thin layer of dielectric fluid. When an over-voltage is applied, heat within the layer of dielectric fluid evaporates very quickly, thus preventing an arc from forming.

To sum up, the ECW-FD2W104J4 is a legendary film capacitor with a range of 105°C and a wide application field. This capacitor is suitable for many AC and DC high-voltage applications and it is highly reliable and stable due to its self-healing construction with a thin layer of dielectric fluid. Thus, ECW-FD2W104J4 is an excellent choice for everyone who is looking for a high-performance film capacitor.

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