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Mica and PTFE Capacitors

CM04CD120JO3 is a type of ceramic mica and polytetrafluoroethylene (PTFE) capacitor, also known as a silver mica capacitor. It is a two-terminal device constructed of high-quality dielectric materials. This type of capacitor is ideal for use in a wide range of circuits, with high frequency and transient voltage components being commonly seen in use.

Application Field

Mica and PTFE capacitors are increasingly being used in applications where small size and low capacitance is needed. These capabilities allow the CM04CD120JO3 to be used in a range of applications, such as for power filtering and switching in automotive, consumer, industrial, and defense applications. This capacitor is also used in precision timing of digital electronics, specifically in the timing circuits of video systems, where its combination of low thermal resistance, low capacitance, and small size is essential. It is often seen in the power decoupling circuits of cell phones, modems and pocket PCs, due to its superior stability and reliable performance.

Working Principle

The working principle of the CM04CD120JO3 capacitor is based on the electrostatic field generated by the dielectric material. When a voltage is applied across the capacitor leads, an electric field is created between the plates and charges are separated in the dielectric material. As the dielectric material used in the CM04CD120JO3 is chosen meticulously based on its performance characteristics, the dielectric constant, dielectric loss and other critical parameters are optimized for the greatest dynamic performance. The electric field induces a charge into the material between the plates, storing an electrical energy. As the voltage across the plates of the capacitors changes, the electrical field changes and induces a current proportionally.

Conclusion

Mica and PTFE capacitors are highly versatile and reliable components, capable of providing circuit designers with much needed stability, accuracy, and reliability. The CM04CD120JO3 is a highly popular capacitor of this type, with exceptional performance and a wide range of applications. The two-terminal design, combined with the unique dielectric material, ensures reliable and stable operation for a variety of circuits.

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