CDV30FJ122FO3F

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Mica and PTFE Capacitors

CDV30FJ122FO3F capacitors belong to the type of mica and PTFE capacitors. This type of capacitor consists of an insulating mica substrate, two pieces of metal foil which form the electrodes, and a layer of polytetrafluoroethylene (PTFE) which provides insulation between the electrodes. The mica substrate is cut into the desired size and then subjected to a dielectric etching process. This creates interconnected micropores in the mica substrate which is filled with a high-dielectric material such as PTFE. The electrodes are then printed onto the mica substrate using a silk-screen process which yields a very thin, uniform coating. The electrodes and the micropores are then connected together, usually with silver. The final product is a very small, very light, yet very reliable capacitor.

Application Field and Working Principle

Mica and PTFE capacitors have excellent properties for use in high-frequency and high-temperature applications such as mobile phones and microprocessors. Mica and PTFE capacitors have high dielectric constant, low resistance, high self-inductance, high stability, and very low levels of leakage. These features make them very suitable for use in high-frequency applications.

The working principle of a mica and PTFE capacitor is simple. When power is applied to the capacitor, an electric field is created between the two electrodes. This electric field causes the electrons of the molecules in the dielectric material to move around, creating a capacitance. This capacitance is what allows the capacitor to store electrical energy.

Mica and PTFE capacitors have many advantages over other types of capacitors, such as their low parasitics, high voltage and temperature stability, and low cost. They are also very small, making them ideal for use in compact electronics. Additionally, mica and PTFE capacitors are very reliable and have a long life. These features make them very attractive for use in a wide range of applications.

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