NFM21HC471R1H3D Filters

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EMI/RFI filters have a wide range of applications in electronic circuits. They provide the necessary filtering for high frequency noise and signals, and have become increasingly popular in recent years due to their ability to suppress electromagnetic interference (EMI) and radio frequency interference (RFI). Among various EMI/RFI filters, NFC21HC471R1H3D is one of them.

NFC21HC471R1H3D is a ceramic-capacitor based EMI/RFI filter. It is used to reduce radio frequency interference (RFI) that can impede system performance. The filter contains two capacitors - a low pass filter and a high pass filter - that can be used in low loss, filtered EMI/RFI applications such as digital normalizing networks, DC motor drives and grounded power lines. Additionally, the filter is capable of providing a high degree of impedance matching and low voltage operation.

The NFC21HC471R1H3D device’s working principle is that it uses a ceramic high pass capacitor and a ceramic low pass capacitor connected in series. This device can reject high-frequency signals by providing attenuation levels up to 97dB. The device has an input impedance of 200K Ω and an output impedance of 200Ω, which is highly inductive in nature. This gives the device the ability to continuously suppress high-frequency signals in a highly effective manner.

The NFC21HC471R1H3D device is ideal for suppressing EMI/RFI noise in electrically noisy environments, such as motor drives, automotive electronics, medical equipment, and communication lines. It is highly suitable for applications in which RFI or EMI may interfere with the operation, such as sensitive biomedical equipment. The filter\'s low insertion loss allows for effective filtering even at a low voltage.

In conclusion, the NFC21HC471R1H3D device is a highly effective EMI/RFI filter with a wide range of application fields. Its working principle is based on the combination of high-pass and low-pass filtering, utilizing ceramic capacitors to attenuate high-frequency signals. Its low-loss characteristics make it suitable for many different applications in electrically noisy environments. With its robust construction and nearly perfect EMI/RFI suppression, it is an ideal device for use in electromagnetically sensitive systems.

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