2890R-20F

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Fixed inductors are passive electronic components that are used to store energy in the form of a magnetic field. The term fixed refers to the fact that the inductance value remains constant with applied frequency and current, although variations due to temperature and external magnetic fields can occur. Inductors are used in many different types of circuits ranging from power management to analog signal processing. One common type of fixed inductor is the 2890R-20F.

The 2890R-20F is a fixed inductor with an inductance of 2.8uH and a resistance of 20mOhms. It is a radial leaded inductor, meaning the two leads are in line with the body of the inductor when mounted (one on each side forming a "U" shape). The size of the package is 28x10x11.3mm with the two leads being 4mm in length. The inductor is designed for use in a variety of different circuit types, including power supplies, switched-mode power supplies (SMPSs), DC-DC converters, and AC switching power supplies.

The 2890R-20F operates on the principle of mutual inductance. This is the same principle found in all inductors, although the manner in which it is implemented is different for each type. The mutual inductance effect occurs between two parallel conductors that are separated by a dielectric material, such as air or insulation. When a current is passed through one of the conductors, a magnetic field is created which induces a voltage in the second conductor, proportional to the rate of change of current in the first conductor. The 2890R-20F is designed to be used in circuits where the current is changing rapidly, as this helps to maintain the inductance value at steady state.

The 2890R-20F has a wide range of applications, including power supplies, switching power supplies, RF circuits, and inductive heating. It is suitable for use in circuits that require high current, where its low resistance allows high currents to be handled without significant losses. Its inductance value is also low enough that it can be used in circuits with high frequencies without losses being incurred. This makes it particularly useful in RF circuits, where high frequencies are necessary for efficient communications.

The 2890R-20F is a highly efficient inductor, due to its ability to maintain inductance value at high frequencies. It is also a cost effective solution, as it is much smaller than some other types of inductors and uses fewer components. Its small size makes it well suited for use in portable devices, as it occupies minimal space. The 2890R-20F is a reliable and efficient component, making it an ideal choice for many different types of circuits.

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