IRF03ST680K

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Fixed inductors are electrical components made of conductive wires and core materials that hold and help control the amount of current flowing in an electrical circuit. The core material and number of turns of wire determine the inductance. Fixed inductors are used in a variety of different applications. One of the most popular fixed inductors in use today is the IRF03ST680K. Used in a broad range of automotive, industrial, telecommunications, and consumer electronics applications, this inductor is designed for reliable operation in a range of conditions.

Overview of the IRF03ST680K

The IRF03ST680K is a Surface Mounted Technology (SMT) inductor. Based on a shielded planar construction, this inductor features a shielded ferrite core. It has class A characteristics, with a maximum DC current rating of 4.15A and a saturation current rating of 6.7A. With a self-resonance frequency of 3.7MHz, this inductor can handle ripple currents in the kHz range, making it ideal for filtering both low- and high-frequency noise from in circuits and down the power trace.

Applications of the IRF03ST680K

The versatility of the IRF03ST680K makes it suitable for use in a wide variety of applications. With its high-impedance characteristics, low-impedance headphones, cellular phones, and portable audio amplifiers are common uses. It is also an ideal electromagnetic interference (EMI) filter for electronics systems, as it can reduce high-frequency noise on the power trace. These inductors also used in motor control and power regulation circuits, high-frequency switching regulators, boost converters, and dc-dc converters.

Working Principle of the IRF03ST680K

The IRF03ST680K works by controlling the flow of current through a circuit. The core material holds and regulates the flow of current, while the number of turns affects the effect of the inductor. The self-resonance frequency determines how ripple current is handled—a higher frequency means current is passed better. When using the inductor in a filter circuit, the higher the current, the lower-frequency noise can be filtered out.

Conclusion

The IRF03ST680K is a popular and versatile fixed inductor. Different applications require different inductors, but this inductor is perfect for EMI filters, headphones, motor control, and power regulation circuits. With its low-impedance characteristics, it is also ideal for low-noise audio applications. Its shielded ferrite core and class-A characteristics make it an ideal choice for a variety of applications.

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