CM1402-03CP

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EMI / RFI filters are circuits that help to protect equipment from electromagnetic interference (EMI) or radio frequency interference (RFI). The most common types of EMI/RFI filters are LC network filters and RC network filters. In this article, we will take a look at the CM1402-03CP application field and working principle.The CM1402-03CP is a very popular filter belonging to the RC network family. It is designed to provide efficient filtering of up to 600mVac/m of power. The filter has up to 13 separate frequency bands, allowing it to filter a broad range of frequencies from very low frequencies up to high frequencies. The CM1402-03CP can be used in applications such as power supply noise filtering, signal conditioning, and switched mode power supplies.The working principle of the CM1402-03CP is based on the principle of capacitive reactance. Capacitive reactance is the opposition to the flow of current that is caused by the capacitive property of a capacitor. When a capacitor is connected to a AC power source, the current flows through the capacitor-resistor combination. The capacitor impedance is inversely proportional to the frequency of the applied signal. This allows the filter to attenuate signals with higher frequencies and to pass signals with lower frequencies.The filter is comprised of a combination of resistors and capacitors which are wired in parallel. The capacitors are arranged in a LC (inductor-capacitor) circuit which provides the desired attenuation of higher frequency signals, while the resistors are wired in parallel to provide an overall low pass filter. The LC circuit is designed to have a variable impedance which allows the filter to provide optimized attenuation at each frequency band.In summary, the CM1402-03CP filter is an efficient RC network filter designed to provide effective filtering of power up to 600mVac/m. It is composed of a combination of resistors and capacitors which are wired in parallel. The capacitors are connected to form a LC (inductor-capacitor) circuit which provides attenuation of higher frequency signals while the resistors provide an overall low pass filter. This filter is suitable for applications such as power supply noise filtering, signal conditioning, and switched mode power supplies.

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