CMR05C5R0DPDR

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Mica and PTFE capacitors are a unique category of passive components used in electronic and electro-mechanical applications. The CMR05C5R0DPDR series capacitors falls into this group. The capacitors are made with a combination of copper dielectric and mica substrate as a dielectric material. They are flat and can be stacked to form higher capacitance.

The capacitors are very low-loss and have good high frequency behavior due to the mica dielectric. They also have high voltage ratings and good dV/dt immunity. Furthermore, CMR05C5R0DPDR capacitors can withstand soldering and rework.

The application areas for Mica and PTFE capacitors are vast. In many cases, they can be used as starting capacitors for motor starter and motor drives, as the capacitor used for electrostatic discharge protection of electro-mechanical interfaces, and as DC and AC power line filters for appliances.

CMR05C5R0DPDR capacitors also have excellent high-frequency characteristics, which make them useful in bypass and decoupling applications for RF power amplifiers. Additionally, they can be used in many consumer electronics and automotive applications.

CMR05C5R0DPDR capacitors use an electrode array consisting of two copper-clad mica plates – a bottom and a top. The sandwiched mica sheet is 1 mil thick. The two plates serve as the two electrodes of the capacitor, and both are covered with a thin coating of PTFE. The PTFE coating functions as an insulator between the two electrodes, allowing electric charge to flow freely between them.

When an alternating current is applied to the electrodes, the electric field between them creates a capacitance that reduces the amount of charge the current can carry, resulting in an oscillating current. This is the basis for the operation of mica and PTFE capacitors and is what gives the capacitor its ability to store electric charge.

The capacitance of CMR05C5R0DPDR capacitors is dependent upon the size of the capacitor, the spacing between the electrodes, and the materials used for the electrodes. The capacitance can be further modified by adjusting the dielectric constant of the insulation between the electrodes. The higher the dielectric constant, the larger the capacitance.

Due to their low-loss characteristics, high voltage ratings, high dV/dt immunity, high frequency characteristics, and reliability, Mica and PTFE capacitors have found wide usage in consumer electronics, automotive, RF power amplifier, and other high-frequency application fields.

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