KNF21025-W3

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The KNF21025-W3 is an EMI/RFI filter, a noise reduction device designed to suppress pulses and noise surges. It is composed of a series inductor, a shunt capacitor, and a shunt resistor, otherwise known as an LC, RC Network

The device is designed to reduce the effects of electrical interference on electronic devices. As an EMI/RFI filter, it attenuates electromagnetic noise on power, data, and signal lines to ensure that the device operates safely and functions efficiently in noisy environments.

The KNF21025-W3 has a variety of applications. It is used to reduce the effects of EMI/RFI noise on TV and radio reception systems, high-speed data links, DC to DC converters, telephone lines, cellular network amplifiers, power supplies, and other electronic devices.

The filter’s working principle is based on the idea that noise pulses and surge currents can be neutralized by the right combination of capacitors and inductors. These components, when properly configured, form an impedance network that passes a certain frequency range of signal while blocking the frequencies outside its designed range. The KNF21025-W3 consists of an inductor, capacitor, and resistor that have been designed to achieve the desired effect. In addition, when its components are in close proximity, the filter has the ability to attenuate higher harmonics of the noise signal.

Furthermore, the KNF21025-W3 has a series inductor, which reduces the effects of common-mode noise, while the shunt capacitor is capable of suppressing differential-mode noise. The shunt resistor dissipates any excess energy in the form of heat.

In summary, the KNF21025-W3 can be considered an effective EMI/RFI filter due to its combination of a series inductor, shunt capacitor, and shunt resistor. It is used to reduce the effects of EMI/RFI noise on a variety of electronic devices and its working principle is based on the idea that noise pulses and surge currents can be neutralized by the right combination of capacitors and inductors.

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