FCP0603C102G-K1

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Film capacitors are capacitors composed of thin film materials as the dielectric medium, which is also one subtype of large capacity capacitors. The FCP0603C102G-K1 is a common kind of this product, being widely used in electronic products for a variety of purposes. This article covers its application field and the principles that make it work.

Application Field

FCP0603C102G-K1 belongs to the FCP0103-0321 series of film capacitors. It has better performance than traditional ceramic capacitors in terms of smaller size, high thermal stability and lower ESL(Equivalent Series Resistance) value. Meanwhile, it also has high frequency range characteristics and good frequency voltage characteristics. Therefore, it is suitable for many applications, such as filters and high frequency bypass circuits in radio frequency, microwave frequency, and intermediate frequency circuits of communication systems. Besides, it could be used to adjust impedance, filter clock signal of high frequency CPU and board-level power supply in computers, and also can be used to several applications, like power line filter, matching networks, impedance matching and transmission line matching in low pass, band pass, high pass and band stop circuits.

Working Principle

FCP0603C102G-K1 is a film capacitor composed of metal foil, anodic oxidation layer and dielectric film as electrodes. The capacitor working principle relies on the dielectric film\'s electric insulating property for the accumulation of charge carriers, the storing of electric repulsion and the blocking of electronic flow. Specifically, when a voltage is applied across the two electrodes, minority charge carriers (electrons or holes) from the surface of the anode diffuse to the cathode through the dielectric. The positive or negative ions formed in this process accumulate on the surface of the opposing electrode, respectively, to create a parallel electric field. The electric field can accumulate a certain amount of charge, which is the capacitance of the film capacitor. As the applied voltage increases, the accumulated charge increases, which further increases the electric field. When the voltage exceeds a certain value, the dielectric will break down, resulting in a large current. The correspondingly generated Joule heating produces a sharp rise in the temperature of the medium, leading to an accidental destruction of the capacitor.

Conclusion

FCP0603C102G-K1 film capacitors are ideal components for electronic products due to their compact size, high thermal stability, lower ESL value, high frequency range characteristics and good frequency voltage characteristics. It is suitable for filters and high frequency bypass circuits in communication systems, power line filters, and matching networks. The working principle of the capacitor is based on the electric insulating properties of the dielectric film, the accumulation of charge carriers, the storing of electric repulsion, and the blocking of electronic flow.

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