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Fixed Inductors

Inductors are electronic components that store energy in the form of electromagnetic fields when an electric current is passed through them. The SC73-120 is a type of fixed inductor which is specifically designed for high-frequency circuits and is regularly featured in circuits for computers, telecommunications and other electronics. It\'s a small, cylindrical component with a ferrite core and 10 ports.

Application Field

The SC73-120 is mainly used for three primary application fields: as an inductor for removing electromagnetic interference (EMI) from radio signals, as an inductor for removing EMI from local area network cables, and as an inductor for reducing transient noise.

In terms of radio frequencies, the SC73-120 is most commonly used for radio frequency filters and timing circuits. It\'s also used in antenna design and power supply circuits as a standard inductor. In terms of local area networks (LANs), the SC73-120 is used for filtering and shielding Ethernet cables, preventing transmission of noise from external sources. Finally, in terms of transient noise, the SC73-120 can be used as a clamping inductor to reduce great potentials of high-frequency signals.

Working Principle

The working principle of the SC73-120 is based on the principle of inductance. When a current flows through an inductor, it induces a magnetic field which stores the energy that it is receiving. This energy is then stored until the current stops and the inductor must release this energy in order for the circuit to continue. This process acts as a filter, removing unwanted noise from a given frequency.

The effect of the SC73-120 on the signal is very similar to what’s known as a "starter inductor”, with the device helping reduce high-frequency noise from radiating to the outside environment. In this manner, it blocks dB signal frequencies from reaching the outside, which helps reduce EMI from interfering with equipment and other electronics.

Conclusion

The SC73-120 is a popular type of fixed induactor with a wide range of applications, including radio frequency filtering, antenna design, power supply circuits, and reducing transient noise. It functions on the principle of inductance, with its magnetic field trapping energy until current stops, thus acting as a filter for eliminating noise from a given frequency. Thanks to its excellent performance, the SC73-120 is widely used in high-frequency circuits, such as those found in computers, telecommunications, and other electronics.

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