105R-121MS

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Fixed inductors are electronic components used to provide an inductive reactance in a circuit. They are mostly found in radio and wireless communication circuits, and can be used to create tuned circuits and filters.

The 105R-121MS is a type of fixed inductor made by TDK. This type of inductor is constructed using a type of core material known as concentrated magnetic powder. This type of core material is designed to have an extremely high saturation point in order to ensure that it will not be affected by high current levels. This makes the 105R-121MS very reliable in circuits with high DC or AC currents.

The 105R-121MS has an operating temperature range of -40 to +105°C, and a storage temperature range of -40 to +125°C. This makes it suitable for a wide range of applications.

In terms of its applications, the 105R-121MS is most often used for high-power DC-DC converters, RF power amplifiers, EMI filters, ESD protection, and high-frequency transformer designs. The 105R-121MS is also often used as part of a switched-mode power supply (SMPS) circuit, where it provides ripple filtering and helps reduce the amount of switching noise.

The working principle of the 105R-121MS is based on the principle of inductance. The inductor creates a magnetic field when a current is passed through it. The induced EMF in the inductor is proportional to the rate of change of the current through it. This means that when the current through the inductor increases, the EMF induced in it also increases. This property is used to create an inductive reactance in a circuit, which can be used to filter, smooth, or dampen electrical signals.

The 105R-121MS is a reliable and versatile fixed inductor. Its wide temperature range makes it suitable for a wide range of applications, and its core material is designed to be incredibly resistant to high currents. This makes it a great choice for high-power circuits, where it can be used to create efficient EMI filters, ESD protection, and high-frequency transformer designs.

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