4470-47F

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Fixed inductors are a type of electrical component, used for a variety of roles in electronic circuits. The 4470-47F (47F) is a fixed inductor specifically designed by AVX Corporation; this particular line of inductors is equipped with many features that make it well-suited for a wide variety of applications. This article will discuss the design, applications, and working principles of the 4470-47F.

Design

The 4470-47F is a chip-type inductor, with an overall dimension of 0.656 inches in length and 0.375 inches in width. This component is enclosed in a ferrite body, with a flat wire coil and a ferrite core, and is threaded for easy installation in circuit boards. The 4470-47F is designed to be able to handle up to 6 volts of direct current (DC) in continuous use, and 8 volts of alternating current (AC) at 20MHz.

Application Field

The 4470-47F is ideal for use in any application that requires an inductor with a flat profile and low-profile package. This component is used in a wide variety of roles, including as an output choke in high-frequency switching power supplies, as a filter in audio and video systems, and as an EMI/RFI filter in telecommunications systems. Additionally, the 4470-47F is also often used as part of inductor-capacitor networks, as protection against overvoltage, and to suppress EMI/RFI noise.

Working Principle

The working principle of the 4470-47F is based on the basic principle of inductance, which is a form of electromagnetic energy storage. The ferrite core of the inductor enables it to store energy, which is then released back into the circuit when the current entering the inductor is interrupted. This release process is known as the “inductive kick”, and it is part of what makes inductors so important in electronic circuits.

In addition to storing and releasing energy, the 4470-47F also functions as an EMI/RFI filter for applications such as switching power supplies, audio and video systems, and telecom systems. The inductor is designed with many windings, and these windings reduce the magnitude of high-frequency signals passing through the inductor, in turn reducing interference and allowing the intended signal to “pass through”. This is known as “signal filtering” and is essential for systems that are sensitive to electromagnetic interference.

Conclusion

The 4470-47F is a fixed inductor designed for a wide variety of applications and industries. It is a chip-type inductor with a flat profile and low-profile package, and is designed to handle up to 6 volts of DC and 8 volts of AC. This component can be used for output choking in switching power supplies, as a filter in audio and video systems, and as an EMI/RFI filter in telecom applications, among other uses. The working principle of the 4470-47F is based on the basic principle of inductance, enabling it to store and release energy in the form of an “inductive kick”. Additionally, the 4470-47F functions as an EMI/RFI filter, allowing only the intended signal to “pass through”.

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