KNA21150C45UA3TS Filters

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EMI/RFI filters are essential components in standard circuitry of many electronic devices including audio-visual and communication devices. The KNA21150C45UA3TS is one type of EMI/RFI filter and is used for many applications across the world. This article will discuss the application field and working principle of KNA21150C45UA3TS.

KNA21150C45UA3TS is an EMI/RFI filter which belongs to the in-line filter series, specifically engineered with three-stageπ/L/C filter design. It is designed for effective suppression of common mode and/or normal mode noise. The filter uses a specialized Pi inductor made of tin-plated core material, wrapped with a special coated conductor to provide optimal noise blocking capabilities. The filter has two shielded elements, a ceramic capacitor and a shielded inductor, to ensure maximum noise cancellation.

The KNA21150C45UA3TS is designed for use in many electronic applications such as computer systems, consumer electronics, communication systems, automotive electronics, audio/video equipment, and medical devices. It can also be used to improve the suppression of unwanted RF and EMI interference, and to enhance the electrical performance of the system. The filter offers high efficiency and high performance for interference-sensitive applications.

The working principle of the KNA21150C45UA3TS is based on the well-known π-L-C topology. The filter contains two shielded inductors, coupled with a ceramic capacitor, to create a resonant network. The filter works by introducing a phase shift of 180°, between the input and output signals. The inductors of the filter act to block the passage of any high frequency noise, while the capacitor prevents the passage of low frequency interference. The combination of inductance and capacitance results in a filter which is both accurate and efficient in blocking both common mode and normal mode signals.

In conclusion, the KNA21150C45UA3TS is a highly efficient and reliable EMI/RFI filter which can be used in many electronic devices and communication systems. It is designed to provide superior interference suppression and improved electrical performance. The working principle of the filter is based on a ‘π-L-C’ topology and consists of shielded inductors and a capacitor in order to create a resonant network. By introducing a phase shift of 180°, the filter is able to effectively block unwanted noise and interference.

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