2221-H

Fixed inductors, as the name suggests, are electrical components used to create a fixed inductance in circuits. They come in many different types and sizes, and they are found in many electronic devices, including computers, televisions, radios, and portable music players. The 2221-H is an example of a fixed inductor, and it has specific applications and a wide range of working principles.

Applications

The 2221-H fixed inductor is designed primarily for use in power supplies, such as those found in laptops and smartphones. It is especially useful in those applications where a high degree of efficiency is needed; the 2221-H offers higher inductances, which means it can handle higher current and thus increase the efficiency of power conversion. Furthermore, the 2221-H can also be useful in circuits for filtering high frequencies, such as in radio transmission circuits.

Working Principle

An inductor works on the principle of inductance, which states that an electric current in a conductor induces an electric field around it. Basically, the inductor creates a magnetic field, and the inductance is the amount of opposition the magnetic field offer to the current. The 2221-H can be used as either a single-pole or double-pole unit, and it is designed to offer a higher inductance than traditional inductors.

In single-pole applications, the 2221-H works by winding a wire with a uniform cross-sectional area multiple times around a ceramic core. This creates an inductance of at least 10H. In double-pole applications, the same wire is wound two or four times around the ceramic core, creating an inductance of up to 100H. In both cases, the inductor is designed to stay within a tolerance range of ±20%.

Conclusion

The 2221-H fixed inductor is an invaluable component for power supply applications and lots of other electronic circuits. It is designed to offer higher inductances than traditional inductors, increasing its efficiency and reliability. The 2221-H has specific applications and working principles that make it ideal for both single-pole and double-pole applications.