CM1442-08CP

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The CM1442-08CP EMI/RFI Filter (LC, RC Networks) is designed to provide robust protection from sources of electromagnetic interference (EMI). It performs High Frequency emission control, electromagnetic compatibility (EMC) and filter network optimization. It can reduce system level EMI, interferences and noise levels. The CM1442-08CP is usable in both commercial and military applications, and it is certified for CE, FCC, and MIL-STD 461/462.

Application Field

The CM1442-08CP is ideal for a wide variety of appliations, including power supply input and output, internal power distribution, signal lines, digital switching, and general RF interference. The CM1442-08CP can also be used in automotive and aerospace applications. It is especially suitable for applications requiring a high-level of performance in terms of radiated and conducted EMI rejection.

Working Principle

The CM1442-08CP consists of an inductor/capacitor (LC) and resistor/capacitor (RC) filter networks. Both of these networks are designed to reject radio frequency interference (RFI) and electromagnetic interference (EMI). The LC filter network works by providing high-frequency AC current impedance and attenuating high-frequency signals. This is achieved by the inductors in the filter, which create an inductive reactance to any AC current flowing through them.

The RC filter, on the other hand, works by reducing the amplitude of high-frequency signals. This is done by the resistors in the filter, which reduces the currents flowing through them. The capacitors act as short-circuits for any high-frequency AC currents, allowing them to be discharged rather than propagating through the system. By combining these two types of filters, the CM1442-08CP is able to effectively reduce EMI and ensure signal integrity.

The CM1442-08CP also features an integrated impedance-matching transformer which is used to provide match between the filter board and the connected device. This allows for maximum EMI attenuation while at the same time ensuring power efficiency and signal reliability. This is especially important in applications where power levels are relatively high.

The CM1442-08CP EMI/RFI filter is a compact, easy-to-use solution for ensuring signal integrity and preventing EMI noise. Its dual-filter networks are specifically designed for robust EMI protection, while its integrated impedance matching allows for maximum signal performance. It is suitable for a wide variety of applications, making it an ideal choice for commercial and military EMI/RFI protection needs.

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