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Mica and PTFE Capacitors

CD4FD151FO3F is a combination of mica and polytetrafluoroethylene (PTFE) capacitors, which are chemical changes after a metal-insulator-metal (MIM) structure is formed. This type of capacitor has excellent insulating performance at high frequency. It also has low capacitance, high voltage, and large temperature coefficient.

Application Field

CD4FD151FO3F capacitors mainly used in military and aerospace industry, radar, satellite communication system, televised transmission, radio communication line, industry and communication equipment. It is mainly used in signal processing, power filtering, blower, lamp, motor drive, lighting and voltage stabilization.

Working Principle

CD4FD151FO3F capacitors use two thin sheets of mica as dielectric electrostatic field to hold the electric charge and form a capacitor. The electrons are trapped between two pieces of mica and surrounded by PTFE, which provides insulation and prevents leakage of electrons. The electrodes are welded onto the titanium substrate, and the capacitor is fixed in the center of the electrode. The mica dielectric gives the device its unique features, including high insulation and small temperature coefficient.

In addition, the structure of CD4FD151FO3F capacitors has low dielectric loss, high frequency stability and low parasitic parameters. It provides excellent high-frequency performance and excellent temperature characteristics. It also has high dielectric strength and good insulation performance at high frequency.

CD4FD151FO3F capacitors are usually used in voltage stabilizers, frequency modulators, matching circuits, telecommunications, digital and analog signal filtering systems. Compared with traditional ceramic and electrolytic capacitors, it has the advantages of smaller size, high voltage tolerance and long service life.

Conclusion

CD4FD151FO3F capacitors are mainly used in military and aerospace industry, radar, satellite communication system, televised transmission, radio communication line, industry and communication equipment. It’s composed of two sheets of mica dielectric and surrounded by PTFE insulation layer. It has excellent performance of high frequency, low parasitic parameters, high insulation and temperature tolerance.

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