CMR04E390GODR

Mica and PTFE capacitors are among the most widely used across a broad range of applications. CMR04E390GODR is an example of one of these types of capacitors and its application field and working principles will be discussed in further detail in this article.

CMR04E390GODR is a radial leaded, axial-lead capacitor with excellent characteristics for high frequency use up to 900MHz. It offers excellent temperature stability and is capable of operating in temperature ranges from -55°C to +125°C. Its capacitance ranges between 0.039uf and 0.68uf and its voltage rating is between 63V and 100V, it has an insulation resistance of 10,000MΩ.min.

This type of capacitor is typically used in applications such as high-frequency circuits, VHF amplifiers, low noise circuits, RF circuits and tuned LC networks. Its application field includes radio communications, automotive, medical, and computer systems. Owing to its excellent performances, CMR04E390GODR capacitors have become the ideal choice for certain radio communication applications.

The working principle of this capacitor is based upon the fact that metal-film and mica dielectric layers are pressed together and then injected with epoxy resin. This creates an electrical insulation layer between the metal film and dielectric layers, and therefore a capacitor. The metal film of the CMR04E390GODR is composed of a nickel barrier layer to increase the corrosion resistance of the electrode, a metal palladium silver layer to increase its resistance, and a gold layer to increase the capacitors\' conductivity. The mica substrate of CMR04E390GODR consists of finely divided particles of mica which are dispersed in a resin matrix.

The combination of the metal film and mica dielectric layers results in an electrical property known as capacitance. Capacitance is the ability of a capacitor to store an electrical charge. This charge can then be used to amplify signals or provide power to circuitry. By choosing the proper combination of metal film and mica dielectric layers, CMR04E390GODR capacitors can be easily designed to provide a specific capacitance value.

The advantages of using capacitors like CMR04E390GODR are that they offer excellent temperature stability, high reliability, and robust design. Additionally, due to their small size and compact nature, they can be easily mounted on various circuit boards and components. Moreover, they are easy to use and require minimal setup.

Overall, CMR04E390GODR capacitors are reliable, robust, and highly capable of delivering excellent performance in applications such as high-frequency circuits, VHF amplifiers, low noise circuits, RF circuits and tuned LC networks. Their application field is broad, and they are ideal for use in radio communications, automotive, medical, and computer systems.