4669-394K

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Introduction: Fixed Inductors

Fixed inductors, also known as chokes or coils, are electronic components designed to introduce inductance into a circuit. They are comprised of a coil of insulated wire wrapped around a core, often made of ferrite or powdered iron. Inductors come in a variety of sizes, shapes, and configurations. They can be used in a vast array of applications, such as signal filtering, impedance matching, and impedance compensation.

The 4669-394K application field and working principle

The 4669-394K is a fixed inductor manufactured by TDK-Epcoss. It is designed to reduce the harmonic content of a signal, often used in signal filtering applications. It features high-saturation performance and low winding losses. With its low DC resistance, the inductor is well suited for AC signal filtering and harmonic reduction.

The 4669-394K utilizes a ferrite core and has an inductance of 10μH ±20%. It features a minimum operating current of 2.0A and a maximum operating temperature of 125°C. The electrical characteristics and specifications are listed in the manufacturer’s datasheet.

The working principle of a fixed inductor is based on Faraday’s law of induction. This law states that an electric current flowing through a coil creates a magnetic field and induces an electromotive force in the coil. This process is known as inductance, and it is the core principle upon which all inductors operate.

Fixed inductors are used to channel an electric current through a circuit or to block certain frequencies from passing through a circuit. In signal filtering applications, the inductors are used to filter out harmonic frequencies. In a DC-DC converter, they are used to help regulate the voltage output.

Conclusion

The 4669-394K fixed inductor is a high-performance component that is well suited for signal filtering, impedance matching, and impedance compensation applications. It is designed to reduce harmonic content and features low winding losses and a high saturation performance. Its operating principles are based on Faraday’s law of induction, which states that electric current flowing through a coil creates a magnetic field and induces an electromotive force in the coil.

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