SCMD4D08-4R7

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Fixed inductors refer to electronic components with inductance values that remain unchanged with frequency and temperature. The SCMD4D08-4R7 is a type of fixed inductor, specifically a multilayer ceramic chip inductor. Its application field and working principle are given below.

Application Field

The SCMD4D08-4R7 is used in a variety of fields. It’s most commonly found in noise suppression and filter applications, such as in power conversion circuits, digital DC-DC converters, clock oscillators, audio pre-equalizers, and switchings of high frequency signals. It can also be used in high-frequency applications up to 10GHz.

Working Principle

The working principle of the SCMD4D08-4R7 is based on Faraday’s Law. Faraday’s Law states that an induced current is generated in a coil when it is exposed to a varying magnetic field. In the case of a fixed inductor, the current is created by a magnetic field that is established by the inductor’s core material. This magnetic field resists changes in the current, creating a fixed inductance which does not vary with frequency or temperature.

The SCMD4D08-4R7 fixed inductor is composed of layers of dielectric ceramic material and a coil of conductive material. This coil of conductive material is the magnetic core of the inductor and also serves as the inductor windings. When an AC voltage is applied to the inductor, the core resonates and generates an inductive field, inducing a current. This generated current is inversely proportional to the frequency of the applied voltage and in addition to this, increases with the number of turns in the inductor winding. The inductor is designed to maintain its inductance regardless of the frequency or temperature of the applied voltage.

Conclusion

In conclusion, the SCMD4D08-4R7 fixed inductor is a type of component used in noise suppression and filter applications. It is composed of a core material and a winding of conductive material, which are responsible for generating an inductive field and an induced current when an AC voltage is applied. Its inductance value remains unchanged regardless of changes in temperature and frequency of the applied voltage. With its reliable high-frequency performance and low DC resistance, the SCMD4D08-4R7 is well suited to a wide variety of applications.

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