MDKK2020T1R0MM Inductors, Coils, Chokes

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Fixed Inductors

A fixed inductor is an electronic component that stores energy in the form of magnetic fields when electrical current is passed through it. It is the most common type of inductor used in circuits and can be found in virtually all electronic devices. The inductor’s resistance to changes in the current is what’s referred to as its inductance. The same property makes it useful for creating filters and other components used for controlling the flow of alternating current.

MDKK2020T1R0MM Application Field and Working Principle

The MDKK2020T1R0MM fixed inductor is a surface mounted component with an inductance of 4.7 mH at 100 kHz and a rated current of 1.2 A. This makes it suitable for a wide range of applications where a high-frequency signal needs to be regulated. It is commonly used in power supply, audio amplifiers, communication links, and electrical filters.

The working principle of a fixed inductor can be explained as a two-phase process. First, a coil is used to create a magnetic field around the inductor core. This is called inductance. When an alternating current is passed through the inductor, the field produced by the coil causes the current to lag behind the voltage. The lag in the current creates a back EMF, which opposes the current. This is known as impedance, and it is the primary function of a fixed inductor.

The second phase of the process is when the voltages and currents are balanced out. This is done by building up the energy in the magnetic field until the electrical energy starts to equal the electrical energy that was applied. This is referred to as the resonant frequency, which is the frequency at which the inductor will operate most efficiently. This resonant frequency is different for each application, and the inductor must be tuned to the correct frequency to achieve the best performance.

The primary advantages of a fixed inductor are its small size, low cost, wide range of applications, and efficient energy storage. It is also easy to assemble and doesn’t require special tools. However, it is not as effective at controlling the current or voltage than a variable inductor. Moreover, the inductance and impedance can change when the frequency of the current changes.

The MDKK2020T1R0MM fixed inductor is a reliable and efficient device that is suitable for a wide range of applications. With its high rated current and efficient energy storage, it can be used in power supplies, audio amplifiers, communication links, and electrical filters. Its exact resonant frequency needs to be determined beforehand in order to achieve optimal performance.

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