S3483-4R7M

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Inductors are particular types of electrical components that are used for storing energy in the form of current. Fixed inductors, such as the S3483-4R7M, are a type of general purpose inductor which are not adjustable to provide different characteristic inductance values. The S3483-4R7M has specific application fields and a particular working principle, which are the focus of this article.

Application Fields

The S3483-4R7M has three primary application fields. It is often used in switching power supplies, as an input filter or an output filter inductor. It is also used in noise filters and EMI suppression modules, and low voltage dc-dc converters. In switching power supplies, the S3483-4R7M is used as an input filter to ensure the input signal is stable and not distorted. It is also used as an output filter to ensure that the output voltage is properly smoothed. In noise filters and EMI suppression modules, the S3483-4R7M acts as an inductor to reduce the amount of noise from EMI and to maintain the desired output frequency. Finally, in low voltage dc-dc converters, the S3483-4R7M is used to stabilize the output voltage by providing a certain amount of inductance.

Working Principle

The working principle of the S3483-4R7M is based on Faraday\'s Law of Induction, which states that the induced electromotive force (emf) and the change of magnetic flux are proportional. In the case of the S3483-4R7M, the change in flux from a current passing through the inductor creates an emf in the opposite direction as the current, thus producing a linear inductance. This inductance is used to store energy in the form of current, which can then be used to stabilize voltages or filter out noise.

When the current through the S3483-4R7M is stopped, however, the stored energy is then released back out of the inductor. This is known as the \'inductive kickback\', and can cause sharp rises in voltage which can damage other components. To prevent this, the S3483-4R7M is often used in combination with a diode which quickly dissipates the kickback, or with components designed to limit the current.

Conclusion

The S3483-4R7M is a fixed inductor which is widely used in a variety of power supply and noise filtering applications. Its working principle is based on Faraday\'s Law of Induction, and it can store energy in the form of current. However, when the current is stopped, the stored energy is released back out of the inductor in the form of a \'kickback\', which can be managed with additional components such as diodes or current limiting components.

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