2119-H

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Fixed Inductors

A fixed inductor is a two-terminal, passive electronic component that carries direct current and stores energy in a magnetic field. The 2119-H is a common fixed inductor that is widely used in electronic circuits and devices. This article explores the application field and working principle of the 2119-H.

Application Field

The 2119-H fixed inductor has a wide range of applications from power supplies to radio-frequency circuits. Its most common use is in differential and parallel resonance circuits. It can also be used to increase power supply current, reduce noise, improve waveforms, and boost peak-to-peak voltage in HF and antenna circuitry. In addition, the 2119-H can be used in high speed switching for digital circuits, depending on the construction of the inductor.

Moreover, the 2119-H is an essential component in electromagnetic compatibility (EMC) applications. Specifically, its magnetic fields help reduce the effect of radiation interference from other electronic devices. Moreover, its high impedance ensures that the inductor can reduce the flow of current between electronic components, increasing the operational stability of the circuit.

Working Principle

At its core, the 2119-H is an inductor that operates on the principle of Faraday’s Law of Induction. This law states that when a current passes through a conductor, a magnetic field is created. If that conductor is placed in a changing magnetic field, a secondary current is induced in the same direction as the primary current. This second current is referred to as the induced current.

In practice, the 2119-H is constructed with multiple winding layers of copper wire around a ferrite core. This arrangement forms an electromagnetic coil that can induce an electromotive force if subjected to a changing magnetic field. When the current in the circuit alters, the coil generates a changing magnetic field. This, in turn, will induce a voltage to try and oppose the current change that created the magnetic field in the first place.

The 2119-H fixed inductor also contains a large number of gaps in its design. These are featured to remove unwanted reactances as much as possible, allowing the inductor to maintain the input frequency over a large range. These gaps act like an air gap, which is a shorting link between the windings. This helps reduce the electrical leakage generated by the winding layer.

Furthermore, the 2119-H has a relatively high current rating. This allows it to hold its own in heavy and complex applications, making it suitable for a wide variety of applications. The inductor also contains an internal winding that prevents high voltage transients from damaging the core.

Conclusion

The 2119-H fixed inductor is a versatile device that is widely used in many applications. Its core design operates based on Faraday’s Law of Induction, providing the inductor with an electromagnetic coil. It has multiple winding layers with gaps that reduce the electrical leakage generated, and its high current rating makes it suitable for complex power applications. Therefore, the 2119-H is an invaluable device for any electrical circuit.

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