ECQ-E2475KFB

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Film capacitors, such as the ECQ-E2475KFB, are key components of electronic circuits used for energy storage. They use a thin dielectric polyester film to separate two conductive plates. This technology enables them to have very high insulation resistance, low dielectric loss, long life, and a broad range of operating temperatures. The ECQ-E2475KFB is an example of a high performance film capacitor. Below is an overview of its application fields and working principle.

Application Field

Film capacitors are widely used in many electronic circuits such as switching power supply systems, automotive electronics, telecommunication systems, and audio / video equipment. The ECQ-E2475KFB is a specific type of film capacitor that is well suited for use in consumer electronics such as computers, TVs, stereo systems, and high frequency filters. It works well in these applications due to its low ESR, long life, and large temperature range. Additionally, the capacitor is constructed with RoHS compliant materials, making it safe for use in consumer goods.

Working Principle

The ECQ-E2475KFB is a non-electrolytic type of film capacitor. It is made of two non-conductive layers of plastic that are insulated with a thin dielectric film. At the edges of these layers, the insulation layer is pierced and welded to conductive foils such as copper, electrode metallization or aluminium. This forms two capacitors in a “Y” type configuration. The structure of the capacitor allows it to have a very low ESR, making it ideal for use in high frequency circuits.

The capacitor itself works by taking advantage of dielectric polarization. When a voltage is applied to the capacitor, dielectric side groups in the plastic layers will align with the electric field and cause a displacement current. This displacement current is at a much lower frequency than the applied voltage, and thus a capacitor for filtering high frequencies can be formed. The ECQ-E2475KFB takes advantage of this phenomenon and provides excellent performance in signal filtering and power conditioning circuits.

In summary, the ECQ-E2475KFB is a high performance film capacitor that is most commonly used in consumer electronics. It is constructed from two thin plastic layers that are separated by a thin dielectric film. This design allows it to have a low ESR and a wide temperature range, making it ideal for high frequency circuits. Through dielectric polarization, the capacitor is able to filter high frequency signals, providing excellent performance in consumer electronic applications.

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