IM04EB471J

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Fixed Inductors

Inductors, also called coils or reactors, are passive two-terminal electronic components used to store energy in the form of a magnetic field. Fixed inductors are components that remain unchanged in their coil size, shape and values — unlike adjustable inductors which have adjustable values — and are typically used to produce and/or filter a signal from a voltage source. One such fixed inductor is the IM04EB471J.

Application Field

The IM04EB471J is typically used as a noise filter for high frequency switching power supplies. It is useful in voltage rectification circuits, which convert an alternating input into a direct current output, and in high voltage circuits, as it keeps electrical noise from disrupting other circuits. In addition, this fixed inductor can be used in impedance matching circuits or EMI filter circuits, such as those found in many electronic items, thanks to its ability to handle a large oscillation frequency range (> 3MHz).

Working Principle

In general, the inductor creates a magnetic field when an electric current is applied and prevents sudden voltage changes. This helps stabilize power supply circuits and filters noise by creating an AC ripple voltage. This reduces the changing electric current and helps suppress high-frequency noise. The IM04EB471J is an effective DC choke coil that filters out high-frequency noise and smoothes voltage. The structure of this fixed inductor comprises a rectangular wire winding that is covered with a ferrite core. The ferrite core prevents radiative noise propagation from the wire coil.

The IM04EB471J can act as an inductor or a transformer, depending on the application. In its inductive mode, it exhibits low power loss when switched. In its transformer mode, it produces an output voltage that is proportional to the input voltage with a specific ratio. In either mode, this fixed inductor can achieve better efficiency than other components with comparable volume and weight.

Conclusion

The IM04EB471J is a versatile fixed inductor that can be used in a variety of circuits and applications. It offers low power loss when switched and can effectively filter high-frequency noise. This fixed inductor is especially effective in voltage rectification and high voltage circuits, and can also be used in impedance matching or EMI filter circuits. As a result, it can help protect other circuits from electrical noise.

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