4212-8

Ferrite Beads and Chips

Ferrite beads and chips are popularly used in a wide range of applications. To exemplify this, 4212-8 applications field and working principle will be elaborated in this article.

4212-8 Application Field

4212-8 is a type of ferrite beads widely used in different miniaturized electronic devices, like cell phones and PDAs. As an inductor, it can provide an inductance of between 0.68nH and 6.8nH. It also has a direct DC resistance of between 0.047ohms and 1.0ohms, and an effective capacitance of between 0.2pF and 4.0pF. Moreover, its maximum current is 1.50A, and its maximum cumulative power frequency of 2 Watts.

Due to its outstanding features, 4212-8 is usually used in applications such as audio frequency crossover boards for speakers, computer memory and other high speed data lines, and also in the processing of power and ground of VCOs (voltage controlled oscillators).

4212-8 Working Principles

The 4212-8 ferrite bead is made of ferrimagnetic materials and functions as an inductor. It works by passing a current through its core, which creates a magnetic field. This magnetic field is effective in suppressing the electric signal, where the inductance created reducers the frequency components of the currents passing through it.

The inductance of the 4212-8 is inversely proportional to the frequency of the signal passing through it. This is because the magnetic field generated by the turn of the coil is more effective at reducing signals of higher frequencies. In addition, the inductance of 4212-8 also changes with the current passing through it, which provides additional flexibility in its application.

Conclusion

In conclusion, 4212-8 ferrite beads have a variety of applications and its working principles are relatively simple and straightforward. Its features and capabilities make it highly favorable for miniaturized electronic devices, like cell phones and PDAs, as well as in the processing of power and ground of VCOs.