KNH21C105DA3T Filters

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The technology of EMI/RFI Filters, which is based primarily on LC, RC Networks, is widely used today in many different applications. One type of EMI/RFI Filter, the KNH21C105DA3T, is especially convenient for a variety of industrial and consumer applications. This article will discuss the application field and working principle of the KNH21C105DA3T.

The primary application field of the KNH21C105DA3T is filtering Noise Interference in both power and signal lines. This filter is particularly useful in EMI mitigation, interference suppression, and signal integrity enhancement in home applications such as home theater systems, smart home devices like TVs, and gaming systems. The KNH21C105DA3T can also be employed in many industrial applications such as motor speed control, computer-controlled manufacturing systems, and industrial automation equipment.

The KNH21C105DA3T is composed of an LC, RC Network as well as several integrated components. It is made up of a signal capacitor, a filter inductor, a power capacitor, an interference absorber, and a Resistor-Capacitor (RC) Network. The RC Network is designed to shield the signal lines from noise interference while the other components serve to provide signal protection, noise attenuation, and current stabilization.

The working principle of the KNH21C105DA3T is simple yet effective. When the input signal passes through the RC Network, it is subjected to a low frequency cut-off which prevents noise interference. The filter inductor serves to provide signal protection and attenuate higher frequency components. The interference absorber dampens noise signals and prevents them from reaching the output. The signal capacitor is used to store the energy of the input signal, while the power capacitor is employed to stabilize the current and prevent radio frequency interference.

In conclusion, the KNH21C105DA3T is an efficient EMI/RFI Filter designed primarily for filtering noise interference in both power and signal lines. It is composed of an LC, RC Network, and offers excellent signal protection, noise attenuation, and current stabilization for a variety of home and industrial applications. The working principle of the filter is based primarily on the RC Network, which is designed to filter out noise while allowing the input signal to pass through uninterrupted.

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