1812-121G

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Fixed inductors are a common component in electronic circuits. They are used in many applications to provide electrical current, or alternatively to store electrical energy. In this article, we’ll discuss the 1812-121G application field and working principle to provide a better understanding of its uses.

The 1812-121G is a surface mount fixed inductor, which is manufactured by a variety of electronic component manufacturers. The inductor’s main purpose is to provide electrical current when energized, or alternatively to store electrical energy. It has an inductance value of 0.12 μH, and provides a maximum DC current of 100 mA. The rated current density of the product is 5 amps per square inch (A/in²) and the maximum operating temperature is +125°C. Additionally, it features a metal alloy core and a ferrite bobbin for improved power handling and performance.

In terms of applications, the 1812-121G is most commonly used in small to medium power electronic circuit applications. It can provide a stable current to the circuit and is often used in voltage-regulator circuits and switching power supplies. The component can also be used in battery chargers, SMPS (switched-mode power supply) circuits, buck converters, motor control circuits, and for EMC (electromagnetic compatibility) filtering.

The 1812-121G operates on a ferrite-core inductor principle. This means the inductor\'s coil is wrapped around a magnetically-permeable material, such as ferrite, which creates a magnetic field. When a voltage is applied to the inductor’s coil, the magnetic field increases, and a current is passed through it. The inductor’s ferrite bobbin helps to contain and concentrate the magnetic field produced by the inductor, increasing its power handling capabilities.

The 1812-121G is an efficient and reliable inductor, and is well-suited to a variety of electronic applications. It is available in a variety of inductance values and can handle relatively high currents with its ferrite bobbin and metal alloy core. It is a widely-used and popular fixed inductor choice in electronic circuits, particularly in connections where stability and energy storage are required.

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