SDR0703-821KL

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Fixed inductors are inductors with a fixed inductance level to provide inductance for circuits. Fixed inductors can be divided into two types: air core inductors and ferrite core inductors. The SDR0703-821KL is a fixed inductor that features a ferrite core and an unwound inductance of 8.2mH.

More specifically, the SDR0703-821KL fixed inductor is a shielded power inductor that uses an 8.2mH type of ferrite core material. It has an inductance tolerance of +120/-40%, the rated current is 19A, and the rated current temperature is 80%. The SDR0703-821KL has a peak current of 25A and a saturation current of 25A.

The core material used in the SDR0703-821KL fixed inductor can be used to build a number of different electrical devices such as power converters, lighting systems, and amplifiers. It is also used as an energy storage device for different electrical components. Moreover, the ferrite core is a low-resistive material that is used to reduce the AC resistance in electrical circuits.

The working principle of the SDR0703-821KL fixed inductor is based on Faraday\'s Law of induction, which states that an electric current produces a magnetic field around it. The magnetic field induces an electric field in a conductive material, which in turn produces an electric current in the material. This process is known as eddy current induction. In an inductor, the induced electric field is compensated by the inductance of the inductor which produces a current (the "header" current) that maintains the induced current at its steady level.

The SDR0703-821KL fixed inductor is commonly used in a variety of applications, including DC/DC power converters, voltage regulation, switching power supplies, lighting systems, motor drives, audio-visual equipment, and other high-power circuits. Additionally, these inductors can be used as a filter or snubber in circuits to reduce the effects of high-frequency noise.

The performance characteristics of the SDR0703-821KL fixed inductor differ depending on the application. Generally, higher inductance values can be achieved by increasing the size of the winding. On the other hand, larger cores are needed for smaller inductance values. For power applications, larger core and winding sizes result in lower core and winding loss, which increases efficiency. Moreover, winding construction is vital for optimizing performance. Generally, a more tightly wound inductor will have a lower DC resistance and higher inductance than a loosely wound inductor.

In conclusion, the SDR0703-821KL fixed inductor is a versatile and reliable component for various power applications. It utilizes a ferrite core material to provide an efficient energy storage solution with low resistance. Furthermore, winding construction is important in optimizing performance, and larger inductance values can be achieved by increasing the size of the winding.

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