LB3218T102K Inductors, Coils, Chokes

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Fixed Inductors

Fixed Inductors are passive two-terminal electronic components which consists of a conductor that stores energy in the form of a magnetic field, and a coil, and have the capability of converting electrical energy into magnetic energy and vice versa. The LB3218T102K is a typical example of a fixed inductor.

LB3218T102K Application Field

The LB3218T102K is a low current, standard power inductor with a wide range of applications. It is commonly used in the ground and power networks throughout the automotive, industrial, and consumer electronics industries. Its main application is for common-mode current filtering in power-supply applications, where it provides superior common-mode noise rejection and high current capacity. It can also be used in wireless communications systems, including complex mobile phone networks, for further improving ionosphere performance.

LB3218T102K Working Principle

The LB3218T102K utilizes a coil wound from a wire which is then wrapped around a ferrite core. The ferrite core is a high-permeability material with the ability to respond to electromagnetic fields, allowing the production of high magnetic fields generated by the coil. This is a key factor in creating effective inductive reactance. The inductive reactance is the opposition to the flow of current in the coil which is dependent on the inductance, frequency of the alternating current, and the resistance of the coil. Thus, the LB3218T102K can produce an effective low-frequency filter circuit.

When an electrical current passes through the coil, a magnetic field is created around the coil. This magnetic field interacts with an external field, inducing electromotive force (emf) in the coil, which opposes the current. This opposition is known as inductive reactance. With this reactance, frequency-dependent current flows through the coil, translating the electrical energy into magnetic energy. As the frequency increases, the number of electromagnetic fields created in the coil also increases, producing stronger reactance which restricts the flow of current even further.

Conclusion

The LB3218T102K Fixed Inductor is an efficient and reliable device for power-supply applications. Its impressive range of applications, including common-mode current filtering and wireless communications, makes it a valuable addition to any electronic system. With its ability to effectively turn electrical energy into magnetic energy, the LB3218T102K is sure to remain a reliable component for many years to come.

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