SC108-820

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Fixed Inductors

Inductors are components of electrical circuits that are used to store energy in the form of magnetic fields. They are typically made of wire wound around an iron core and can be used to reduce noise, increase voltage and isolate signals. The SC108-820 is an example of a fixed inductor, which is an inductor with a fixed inductance (units of Henry, H).

Application Field and Working Principle of SC108-820

The SC108-820 fixed inductor is primarily used in switching power supplies and high frequency circuits. It is designed to be used in high frequency switching circuits with frequencies up to 1.5MHz and can handle up to 8A.

The SC108-820 is made up of two parts: the windings and the core. The windings are made from a non-magnetic material, such as copper, which stores the electrical current. The core is typically made of an iron or ferrite material, which provides the magnetic field. When electrical current is introduced to the SC108-820, the current flows through the windings and creates a magnetic field around the core. This magnetic field stores the energy and induces a voltage into the windings, creating an electromotive force (EMF).

The internal resistance of the SC108-820 dictates the amount of inductance it has. The higher the resistance, the higher the inductance. The internal resistance of the SC108-820 can be adjusted by adding or removing turns of wire on the windings. This is known as “turns ratio” and is expressed as the ratio between the number of turns of the windings in relation to the core.

The SC108-820 is also designed with an EMI/RFI choke, which is a component that helps reduce electromagnetic interference (EMI) and radio-frequency interference (RFI) noise in the system. This noise is introduced by various types of electrical and electronic devices and can interfere with other electronic devices in the vicinity. The SC108-820 suppresses the noise by absorbing the energy while maintaining low impedance and good frequency response.

The SC108-820 fixed inductor can also be used in high frequency DC-DC converters, where it helps to reduce voltage ripple. Voltage ripple is the fluctuation in the voltage of the power supply due to instantaneous transient loads, and can cause systems to malfunction. The ripple can be reduced by introducing an inductor, which passes the current through its coils. The inductor absorbs the ripple and is discharged slowly when the instantaneous load is removed. The SC108-820 is a particularly effective inductor for this process due to its high inductance and low DC resistance.

In conclusion, the SC108-820 fixed inductor is an effective component in switching power supplies and high frequency circuits. It is designed to withstand high frequency switching circuits, reduce noise, reduce voltage ripple, and provide isolation for signals. The inductance of the SC108-820 can be adjusted by altering the number of turns in its windings, and it also includes an EMI/RFI choke for further noise reduction.

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