S0402-22NF1B

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Fixed inductors, sometimes known as chokes, are electrical components that perform the same function as an inductor but the magnetic field they produce does not change to accommodate the increasing or decreasing needs of the current. A fixed inductor, such as the S0402-22NF1B, serves the purpose of creating inductance, which is a property that opposes the changes in current, allowing a steady flow of current in the circuit.

The S0402-22NF1B is an air core, high current microchip inductor that measures 0.4x0.2x0.2 inches and boasts a maximum current of 1.2A. It is encircled with a ferrite core, requiring no external components because the inductor is self-contained and has all of its vital components already attached. The package is designed to prevent electric field interference, have excellent heat transfer characteristics and ensure superior performance.

The S0402-22NF1B is a ‘must have’ component in high current applications, most of which can be found in consumer electronics such as cell phones, PDAs and notebook computers as well as industrial applications. It is also suitable for high frequency switching circuits and the circuitry found in automotive industry and instrument applications. This inductor is capable of operation with frequencies ranging from 20kHz to 1MHz.

The working principle of the S0402-22NF1B is based on Faraday’s Law of Induction, which states that when a conductor is placed in a changing magnetic field, a small current, or EMF (electromotive force) is induced in the conductor, proportional to the rate of change in the magnetic field. This is called inductance, or opposition to change in electric current. Once the changing magnetic field is removed, the current ceases and the inductor can be used again. With its fixed inductance, the S0402-22NF1B is designed to provide a steady current to circuits, regardless of the changing environment.

In addition, the flux build up that is created in the core of the S0402-22NF1B is a by-product of the Faraday’s Law of Induction. This is the principle that operates in all inductors, and causes the build up of a magnetic field in and around the inductor. This field allows the inductor to perform its job in controlling current flow and is necessary for the transfer of energy in all circuits.

The S0402-22NF1B is designed to provide a steady current in a variety of high current applications, including consumer electronics and industrial applications. Its self-contained components are encased in a ferrite core, allowing excellent electric field interference, heat transfer characteristics and overall performance. It operates on the principle of Faraday’s Law of Induction, providing an EMF proportional to the rate of change in the magnetic field. This makes the S0402-22NF1B an ideal choice for high current applications.

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