IM04STR56J

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Fixed Inductors: IM04STR56J Application Field and Working PrincipleInductors, also known as coils or chokes, are widely used in many applications such as filters, transformers, tuned circuits, and power supplies. Fixed inductors refer to inductors designed to have a predetermined inductance value that cannot be adjusted without physically changing the component. The value of a fixed inductor is determined by the construction of the component, such as the type of core or core material, the number of turns, the diameter of the conductor, and the tolerance of the component.One of the most popular series of fixed inductor is the IM04STR56J. The IM04STR56J series is a general-purpose inductor offering a wide inductance range from 0.47μH - 330μH, allowing it to be used in a variety of applications. Its small size compared to conventional inductors, high rated current and low DC resistance makes it suitable for use in low power applications. It also has a high self-resonant frequency, good thermal stability and low cost.The applications for the IM04STR56J series range from consumer electronics and home appliances to automation and medical devices. It can be used in power supplies, switching power converters, EMI/EMC filters, resonant circuits, and LED display controllers. It is also used in switching regulators, power supplies, and switching converters for telecom applications.The working principle of the IM04STR56J is based on Faraday’s law of induction. Fixed inductors work in a similar way to that of a transformer, except that the secondary coil or winding is not present. When a changing current or voltage is applied across an inductor, the different components of the inductor react to this changing flux. This reaction induces a voltage in the inductor winding, which produces a counter-emf, which opposes the change in flux. This is known as self-induced or self-generated emf. The generated emf is related to the rate of change of the applied voltage or current, which is proportional to the inductance of the component.Fixed inductors are usually constructed with a magnetic core and a single coil of wire. The inductance of an inductor increases with increasing number of turns in the coil and increasing core area. Additionally, the inner diameter of the coil affects the inductance, as the more tightly wound the coil is, the higher the inductance. Moreover, the inductance of an inductor can be increased or decreased by altering the permeability of the core material.In summary, the IM04STR56J series is a general-purpose, low-cost fixed inductor offering a wide inductance range from 0.47μH - 330μH. It has a high self-resonant frequency, good thermal stability, and low DC resistance which makes it suitable for low power applications. The applications for the IM04STR56J series include consumer electronics, home appliances, automation, medical devices, power supplies, switching power converters, and EMI/EMC filters. Its working principle is based on Faraday’s law of induction. Its inductance can be increased or decreased by varying the number of turns in the coil, the core area, inner diameter of the coil, and the permeability of the core material. 

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