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Fixed Inductors

Fixed inductors are electrical components that store energy in the form of magnetic flux when an electric current is passed through them. They are widely used in various electronic circuits, such as power supplies, radio frequency circuits, and audio amplifiers. The ELJ-RF47NJFB is a type of fixed inductors characterized by a low profile height, high frequency operation, and excellent reliability. This application note will provide an overview of the ELJ-RF47NJFB, including its application fields and working principles.

Application Field of ELJ-RF47NJFB

The ELJ-RF47NJFB is a fixed inductor with a high frequency operation from 0.25MHz to 5MHz. It has a low profile height of only 1.3mm and a maximum current rating of 5 Amps, making it well suited for use in a variety of applications. Examples of such applications include:

• Power supplies
• Radio frequency circuits
• Audio amplifiers
• High-density circuit boards
• Communications circuits

The ELJ-RF47NJFB has a small size, high reliability and excellent frequency characteristics that make it ideal for use in high-density circuit boards, such as printed circuit boards (PCBs) and integrated circuits (ICs).

Working Principle of ELJ-RF47NJFB

The ELJ-RF47NJFB is a fixed inductor that works using Faraday’s Law of Induction. When an electrical current passes through the inductor, it stores energy in the form of a magnetic field. The magnetic field is generated due to the electromagnetic effects of the current. The stored energy is released slowly and can be used in various applications.

The ELJ-RF47NJFB is capable of operating in a wide frequency range and has an excellent Q factor of 200. The Q factor refers to the ratio between the inductance of an inductor and its resistance to alternating currents. A higher Q factor indicates better performance and higher efficiency in applications where the inductor is used for frequency filtering. In addition, the inductor is able to provide stable performance while operating in a wide temperature range between -40°C and +125°C.

The ELJ-RF47NJFB has a low profile height of only 1.3mm, which enables it to be used in high-density circuit boards. This type of inductor is also characterized by its high inductance value, which can reach up to 8.2uH. This allows it to be used in applications that require higher inductance, such as buck converters and switching regulators.

Conclusion

The ELJ-RF47NJFB is a fixed inductor designed for high frequency operation and high current applications. Its low profile height and high quality makes it ideal for use in a variety of applications, from power supplies to audio amplifiers. Its wide frequency operation range and excellent Q factor make it suitable for use in circuits that require frequency filtering. Furthermore, the inductor is able to operate in a wide temperature range and maintain stable performance. Finally, the ELJ-RF47NJFB has a high inductance value, making it suitable for use in buck converters and switching regulators.

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