Film Capacitors

Film capacitors are a type of capacitor that uses a plastic film as the dielectric medium, this results in higher voltage ratings, extremely low dissipation factors and superior stability characteristics compared to other types of capacitors. The ECW-FE2W154J capacitor is a film capacitor, and is commonly used in AC and DC applications, thanks to its high-temperature rating, small volume, and capacitor life that exceeds 10 thousand hours.

ECW-FE2W154J Application Field

The ECW-FE2W154J film capacitor is primarily used in frequency inverter motor start-up, Avionics, energy storage for DC and AC low frequency resonance equipment, and high-frequency AM chassis filter power supply filtering. It is a high temperature, high frequency rated capacitor, which has a maximum operating temperature of +105°C and a working frequency of up to 200kHz.

ECW-FE2W154J Working Principle

The ECW-FE2W154J film capacitor utilizes a winding structure that is composed of a metalized polypropylene dielectric layer, with a high temperature winding formed over the dielectric layer. The dielectric is the key component to controlling the capacitance of the capacitor, this is achieved by using layers of metalized film, with the thickness of the films determining the capacitance value. The metalized films are wound together in multiple layers to form an electrode winding, and the current flows through the winding.

The metalized films and winding are housed in a steel or aluminum casing, depending on the application. The casing helps to protect and prevent the capacitor from moisture, dust, and other contaminants that can negatively impact the capacitor’s performance. The metalized films and winding are then connected to external terminals, usually in a soldered manner.

Conclusion

The ECW-FE2W154J is a high temperature, high-frequency rated electrical film capacitor, making it well-suited for a variety of AC and DC applications. Its small size, high-temperature rating and long capacitor life make it a great option for many applications. It utilizes a winding structure that is composed of a metalized polypropylene dielectric layer, with a high temperature winding over the dielectric layer, and is housed in a steel or aluminum casing. Although it can be used in a wide variety of applications, it is well-suited for frequency inverter motor start-up, Avionics, energy storage for DC and AC low frequency resonance equipment, and high-frequency AM chassis filter power supply filtering.