IR04BH120J

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Fixed inductors are electronic components designed to offer a fixed, unchanging amount of inductance to a circuit. The IR04BH120J is a type of fixed inductor that is commonly used in a variety of electronic circuits. In this article, we’ll explore the application field and working principle of the IR04BH120J.

Overview of the IR04BH120J

The IR04BH120J is a high-performance, low-profile, single-layer inductor with an inductance range of 0.030-0.10ohm. It features a reasonably high self-resonance frequency, typically in the range of 8kHz-30kHz, which allows it to be used in high-frequency applications. Additionally, the IR04BH120J features a high current capability (1.0A max.), low DCR (0.030-0.100ohm), and high Q-factor under multiple frequencies.

Applications of the IR04BH120J

The IR04BH120J is mostly used in a variety of high-frequency, low-power applications, such as in DC-DC converters, switching power supplies, and power supplies for notebook computers. Its characteristics enable it to offer a good balance of properties and performance in these applications. Additionally, it can be used as an EMI filter in radio frequency applications, which can help reduce electromagnetic interference.

The low-profile design of the IR04BH120J makes it particularly well-suited for space-constrained applications, such as mobile phones, tablet computers, and other hand-held devices. The high self-resonance frequency of the inductor also allows for efficient use of board space, as it negates the need for dedicated inductor packages.

Working Principle of the IR04BH120J

A fixed inductor, such as the IR04BH120J works on the principle of Faraday\'s Law of Magnetic Induction. According to this law, an electrical current that passes through a coil of wire creates a magnetic field. This magnetic field can then interact with nearby components, such as the coil itself. This interaction is known as inductance, and the amount of inductance created depends on the properties of the components and the number of turns in the coil.

The higher the number of turns in the coil, which is known as the coil’s “inductance”, the stronger the magnetic field it creates. This means that it takes more energy to move the same amount of current through the coil, and the resulting magnetic field is able to interact more efficiently with the coil itself.

By controlling the properties of the components, such as the number of turns in the coil and the resistance of the coil, the IR04BH120J can be tuned to provide the desired amount of inductance. The IR04BH120J also features a low DCR, which ensures that it will not consume too much power when used in a circuit.

Conclusion

The IR04BH120J is a high-performance, low-profile single-layer inductor that is suited for high-frequency, low-power applications. Its high self-resonance frequency and good current capability make it an excellent choice for circuits that require a reliable, efficient, and low-cost solution. Additionally, its low-profile design allows it to be used in space-constrained designs without sacrificing performance. Finally, its working principle is based on Faraday’s Law, which states that the amount of inductance created by a coil of wire depends on the number of turns in the coil and the properties of the components.

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