BRL2012T3R3M

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Fixed inductors are electronic components that store energy in the form of a magnetic field. They are typically composed of wire wound around a core, usually of ferrite, which increases the inductance of the coil. Fixed inductors are designed for use in various types of circuits, including power supplies, filters, oscillators, and antenna systems. A BRL2012T3R3M is a surface-mount-type fixed inductor from TDK.

Application Field

The BRL2012T3R3M is designed for use in high-frequency applications that require low-inductance values at high frequencies. It also has low DC resistance and high saturation current. These characteristics make the inductor suitable for use in applications where high-frequency switching is required, such as in DC-DC converters, step-up and step-down converters, ADSL, SMPS and DC/AC inverters. It can also be used in inductive voltage dividers and high-speed logic circuits.

Working Principle

The fixed inductor works on the principle of induction. When a current is flowing through the coil, it produces a magnetic field around the core, which induces a voltage across the inductor. The magnitude of the voltage is proportional to the rate of change of the current flowing through the coil. This induces the flow of a current in the opposite direction, the magnitude of which is proportional to the magnitude of the voltage. The magnitude of the induced current is also equal to the rate of change of the magnetic flux. This creates an opposing voltage, which is called the back EMF, and it opposes the change in current. As a result, the current is regulated, and the coil resists any change in the current.

The inductance of a fixed inductor depends on the number of turns on the winding, the core material, and the diameter of the coil. The larger the number of turns and the larger the core, the higher the inductance. Furthermore, the amount of current that can be passed through the coil is determined by the saturation current, which is the maximum current that can be applied without diminishing the inductance of the coil. The saturation current of the BRL2012T3R3M is rated at 28.2A.

Overall, the BRL2012T3R3M is a high-performance surface-mount-type fixed inductor that is designed for use in high-frequency applications. It has a low inductance value, low DC resistance, and high saturation current, making it suitable for applications requiring high-frequency switching.

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