CIL21S220KNE

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Fixed Inductors have been a staple within the electrical industry for many years, providing an integral component in a variety of electronics. The CIL21S220KNE is a high-performance fixed inductor, suitable for a variety of applications.

This inductor is constructed from wire wound on a formed cylindrical bobbin. It has dimensions of 21mm x 15mm x 10mm and is composed of a ferrite core, plastic bobbin and an enameled copper wire. The inductance of the device is 2.2µH with a tolerance of ±5%. It is suitable for the self-heating temperature range of -40C to +125C, and can withstand high-current flow - up to 3.0 Amp.

The primary application fields in which CIL21S220KNE inductors are used include power electronic applications where these inductors are used to filter noise from power supply lines. They are also used in switching systems, such as in high-frequency audio amplifiers and in hard-drive or computer applications. CIL21S220KNE are also used in DC/DC converters as the inductors in the conversion process.

The working principle of this inductor is simple. Whenever an alternating current is flowing through the inductor, an electromotive force is induced which is proportional to the rate of change of the current. This induces a small magnetic field in the core of the inductor and this creates a magnetic flux. This magnetic flux is then used to oppose the current flow, thus creating a reactive current in the inductor. This reactive current, termed ‘inductance’, is related to the inductor’s reactance and determines the device’s ability to store energy for a given frequency.

The CIL21S220KNE fixed inductor is a high quality, reliable component which is ideal for high-current applications such as those found in power supplies and switching systems. Its many applications, such as in noise filtering and DC/DC converters, make it an excellent choice for electronics engineers.

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