S4924-121J

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Fixed Inductors are made of steel coils, plastic cores, and other components. They have the capability to pass a current with a fixed number of turns, and produce an output voltage. S4924-121J is a type of fixed inductor, which has a wide range of applications.

The S4924-121J applies for DC-DC converters, AC bridges, high frequency DC circuits, and power supply systems, as it can store power in its core element after carrying DC current. The inductor has a high saturation current, low loss, low profile, and broad working temperature range from -40 to 85°C. It also has an excellent withstand voltage of 100V and a rated current of 3.2 Amps.

When using inductors for circuit protection, the S4924-121J offers a variety of protections such as inrush current limitations, EMI filtering, and ripple currents. Injury or damage caused by high surge or voltage spikes are prevented with the use of the inductor.

The working principle of the S4924-121J is based off the EMF (electromagnetic force) which is generated in the winding of the inductor, due to its DC current. This is known as the backward EMF, where the voltage rises quickly from 0V to the peak value and to the reverse wave. Thus, the voltage is regulated by constraining the current.

Meanwhile, the core element is linked with an air gap which allows relative motion of the elements with respect to each other. The gap enables the inductance to be constant despite the relative motion of the core elements, and the inductance is maintained despite electronic circuit conditions, providing a stable output.

Due to the low resistance, strong magnetic field, high working temperature range, and reliability, the S4924-121J is ideal for powering and protecting high frequency electronic circuits including DC-DC converters, AC bridges, power supply systems and more.

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