NFE31PT470C1E9L Filters

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The NFE31PT470C1E9L is part of a family of off-the-shelf components used to attach an electrical load to a circuit without creating interference. They are part of the EMI/RFI Filters (LC, RC Networks) family, which provide effective protection against both Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI). This type of filter is typically used in a wide range of applications, from automotive and industrial to telecommunications, consumer electronics, and medical.

NFE31PT470C1E9L components feature a combination of inductors (L) and capacitors (C) connected in series or parallel with each other to form a network. They are an effective solution for reducing the level of conducted EMI signals by creating a low-impedance path to ground for common-mode electromagnetic fields that impinge upon the electrical system. The capacitors provide a low-impedance path to ground at high frequencies, while the inductors provide a high-impedance path to ground at low frequencies. Generally, an LC network is used to reduce the conducted EMI signal level emitted by the source, while an RC network is used to reduce the conducted EMI signal level received by the load.

The NFE31PT470C1E9L offers an optimized combination of inductors and capacitors that provides superior EMI filtering performance in a wide range of frequencies. The component has a small footprint and is easy to assemble, saving designers time and cost. It is designed to reduce both the amplitude and noise level of conducted EMI signals and is capable of providing wide-band attenuation. As a result, it is capable of meeting the most stringent EMI requirements demanded by various markets and industries.

The working principle of the NFE31PT470C1E9L is based on the property of mutual inductance and capacitance in a circuit. Here, the inductance and capacitance interact to form a low-pass filter which attenuates frequencies outside the pass-band and passes frequencies inside the pass-band. This attenuation reduces the amplitude of the noise and provides desired signal filtering while preserving the fidelity of the desired signal. Depending on the design and type of filter response, different frequencies can be attenuated and passed. In summary, the NFE31PT470C1E9L filter is an effective solution for controlling EMI signals in many different types of electrical applications.

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