PM1812-2R2J-RC

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Fixed inductors refer to inductors that have a certain inductance value and generally do not change with the loading, frequency, temperature and voltage. They are generally composed of cores and windings. The PM1812-2R2J-RC inductor is a fixed inductor with a current rating of 2.2A, a housing size of 12×12×16mm and an inductance of 2.2μH.

Application Field

The PM1812-2R2J-RCfixed inductor is mainly used in various electronic devices such as mobile phones, computers, consumer electronic products, electronic circuit protection and other electronic devices. In the application of mobile phones, tablets and computers, the fixed inductor plays an important role in the power management and standby circuit. In the consumer electronics industry, the fixed inductor is widely used in DVD players, magnetic heads and other devices. In the electronic circuit protection industry, the fixed inductor is used to filter out the noise of digital electronic devices, or transform the current and voltage to reduce the width of pulse waveform.

Working Principle

The working principle of fixed inductors is essentially a combination of the right hand rule of electricity and the law of Lenz. In essence, when electric current passes through the windings of the fixed inductor to form an induced electric field, it will generate inductance. When the electric current in the circuit changes, the current direction and speed in the windings of the fixed inductor will also change, thereby generating a magnetic field, which will affect the axis of the conductor, and this action will try to produce a current in the direction opposed to the current that created the magnetic field. Therefore, the inductance value of the fixed inductor is basically constant as long as the current and number of turns remain unchanged.

The PM1812-2R2J-RC fixed inductor is mainly composed of a core and four coils. The core of the device is made of ferrite material, which has a great influence on the performance characteristics of the inductor. The four coils are wound around the ferrite core with enamelled copper wire. Due to its internal structure, the impedance of the PM1812-2R2J-RC is very low, and its DC and AC resistance is large, making it a high rated inductor.

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