4922-681J

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Fixed Inductors: 4922-681J Application Field and Working Principle

Inductors are passive electrical components used to store energy in the form of a magnetic field. Fixed inductors, also known as fixed inductance coils, are primarily used in oscillators, tuners, filters, and other applications involving frequency selection.

The 4922-681J is one such fixed inductor. Manufactured by TE Connectivity, it is a wraparound variable inductor featuring an adjustable, air-core design. This inductor has a maximum inductance of 0.0045 µH (45 nH), a resistance of 0.06 Ω, and a rated current of 1 A.

It is also a high-temperature component rated for 155 °C, making it an ideal solution for automotive, aerospace, and other applications in extreme environments. The overall size of the component is 7.3 × 1.4 mm, and it features a shielded (closed) construction to protect its 4-pin leads from the surrounding atmosphere.

But what is the working principle behind the 4922-681J?

The working principle of this inductor is the same as any other inductor. When an electrical current passes through it, it creates a magnetic field which stores energy. This energy is released when the current is cut off. Although the 4922-681J is designed for fixed applications, the adjustable air-core design allows users to fine-tune the inductance to better meet their needs.

The 4922-681J fixed inductor is well-suited for a wide variety of applications, such as RF amplifiers, digital audio amplifiers, audio frequency divider networks, oscillator networks, and resonators. It\'s especially well-suited for automotive and aerospace applications, as its high-temperature design allows it to withstand harsh conditions.

In summary, the4922-681J is a highly versatile fixed inductor that is well-suited for a variety of applications. Its adjustable air-core design allows users to fine-tune the inductance to meet their specific needs, and its high-temperature design makes it an ideal solution for automotive, aerospace, and other applications in extreme environments.

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