DC1390R-333K

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Fixed inductors, such as the DC1390R-333K, typically form part of a larger integrated circuit. They have a wide range of applications, such as in power supplies, audio, and motor step speed control circuits. The purpose of this article is to discuss the application field and working principle of the DC1390R-333K.

The DC1390R-333K is a fixed inductor with a rated inductance of 3.3 mH, a mounting hole size of 3.2 mm, and a tolerance of +/- 10 %. It is a cylindrical construction, with a ferrite core and a copper coil. The inductor has an operating temperature range of -40C to +85C and is supplied with a lead-free, RoHS-compliant, halogen free coating. This allows the DC1390R-333K to be used in a variety of applications where a high quality part is needed.

The DC1390R-333K’s application field ranges from small board-level applications to larger power-supply applications. In board-level applications, the inductor’s high multiple frequencies make it well-suited for frequency control, such as in switch mode power supplies (SMPS). Its low mass, low size, and low ESR also make it suitable for small, high-frequency currents and dropout voltage circuits, such as in hearing aids, small motors, and other types of integrated circuits. The inductor is also widely used in power circuits, such as in transformers, power supply inductors, and higher power regimes.

The DC1390R-333K’s working principle is based on Faraday’s law of induction, which states that a time-varying magnetic field produces a voltage proportional to the field’s rate of change. When an alternating current passes through the inductor’s core, the core creates a magnetic field that continuously changes in strength. This changing strength induces a voltage in the coil that is proportional to the rate of change of the magnetic field. This produces a lowpass filter that passes low frequency signals while attenuating higher frequencies, resulting in a smoothed, filtered voltage output from the inductor.

In summary, the DC1390R-333K fixed inductor is a high quality component that has many applications, ranging from board-level applications to power circuit applications. Its wide operating temperature range and tolerance also makes it suitable for a variety of scenarios. The inductor’s working principle is based on Faraday’s law of induction, and it acts as a lowpass filter that passes low frequency signals while attenuating higher frequencies, resulting in a smoothed, filtered voltage output from the inductor.

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