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Film Capacitors

Film capacitors are a type of capacitor made from plastic film as their dielectric material, often referred to as polypropylene, polycarbonate, mylar or plastic film, with interwoven metal layers, like aluminum or zinc. When two metal layers come in contact with plastic, a film capacitor is created. The metal layers can be flat, flexible or molded, depending on the application. Film capacitors are commonly used for energy storage, signal coupling, pulse charging and EMI/RFI filter devices. The use of film capacitors in electronics is extensive and, due to their low inductance, they are used in applications that require very high-frequency operation.

ECQ-E2225JFW application field and working principle

The ECQ-E2225JFW is a film capacitor specifically used in home and industrial applications. This series is designed for energy storage and signal coupling. It offers low ESR, high ripple current, and low inductance for a wide range of power applications. The ECQ-E2225JFW series is designed to operate at very high frequencies and ideal for applications such as switch mode power supplies, inverters, converters, and motor control.

The working principle of the ECQ-E2225JFW is based on two metal layers which are electrically connected by a dielectric film. This dielectric has a certain thickness which determines the capacitance of the capacitor. The charges stored in the capacitor can be released or absorbed, depending on the needs of the circuit. When the voltage across the capacitor rises, the dielectric layer stores some of the energy, and as a result, the capacitance of the capacitor increases. The ECQ-E2225JFW has high temperature stability, and the series can operate at temperatures up to 105°C.

The ECQ-E2225JFW is designed to provide greater performance when compared to standard film capacitors due to its lower ESR and higher ripple current. This series also has a wide operating temperature range and is ideal for applications such as automotive, LED lighting, power supplies, and voltage regulation in audio equipment.

Conclusion

Film capacitors are ideal for applications that require very high frequencies and feature low inductance. The ECQ-E2225JFW series is an excellent choice for energy storage and signal-coupling applications. This series offers low ESR, high ripple current and low inductance for a wide range of power applications. The ECQ-E2225JFW series is designed to operate at temperatures up to 105°C and is ideal for applications such as automotive, LED lighting, power supplies, and voltage regulation in audio equipment.

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