B82442A1274K000

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Fixed Inductors

A fixed inductor, also known as a choke, is an electronic component that stores energy in the form of a magnetic field. The most common type of fixed inductor is the toroidal type, with a core made of magnetically saturated ferrite. The other type is the axial or radial type inductor, which is usually made of a non-magnetic wire wound either axially or radially around a cylindrical core.

The B82442A1274K000 fixed inductors are radial inductors designed and produced by the EPCOS Company. It is constructed with a ferrite core and winding, and any temperature dependent coating is made of a polyimide-film. The rated current is 7A with a temperature coefficient equivalent to that of a conventional copper-clad lamination coil. Furthermore, it has a rated voltage of 1200V and a self-resonant frequency of 1.6MHz.

Industry Application

B82442A1274K000 fixed inductors are commonly used in power supplies, generators, inverters, DC-DC converters, charging systems, etc. It is suitable for both ac and dc circuits, and is suitable for low flux density applications. They are popularly used for power factor correction, local filtering, energy storage, and as an energy limiter in power electronics.

Working Principle

The core of a fixed inductor is made up of a material with a high magnetic permeability, which increases the inductance of the inductor. The winding consists of a coil of conducting material such as copper, which stores energy in the form of a magnetic field.

The working principle of the B82442A1274K000 fixed inductor can be explained as follows: When a current passes through the winding, the magnetic field will be created. This magnetic field of the fixed inductor can generate a back-electromotive force as the winding rotates. The back-electromotive force opposes the current flowing along the windings, and the larger the inductance of the inductor, the larger the back-electromotive force. As a result, this back-electromotive force helps to regulate or limit the current flowing through the windings.

Conclusion

The B82442A1274K000 fixed inductors are a type of radial inductors with a ferrite core and winding, and are well-suited for power supplies, generators, inverters, and DC-DC converters. They are used for applications requiring low flux density, and work on the principle of inductance. The larger the inductance of the inductor, the larger the back-electromotive force is generated to help regulate or limit the current flowing through the windings.

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