1331R-332K

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Fixed inductors, also known as choke coils or storage coils, are electric components that help in the flow of alternating currents. In simple terms, fixed inductors are electrical and magnetic devices used to control the flow of energy through the electrical circuits.Typically, fixed inductors have an inductance value, which means that they oppose changes in the current flowing through them. When a current passes through the inductor, a magnetic field is created which opposes any changes in the current. This is the basis of the blocking or "choking" action of the inductor.

1331R-332K is one of the fixed inductors in the market. It consists of a ferrite core and a four pin base that supports the bobbin winding. This type of coil has an inductance value between 1.0 mH and 1.2 mH and is rated for 400 mA with a maximum voltage of 10 V DC and frequency up to 1 MHz.

The inductance of the 1331R-332K is determined by the number of windings, and thus, its application field is varied. In general, it can be used as an RF filter for TV receivers, amplifiers, and other radio frequency applications, and also for suppression of EMI, noise reduction, DC-to-DC stabilizer, stabilizer circuits, and power supply filters. Moreover, this fixed inductor can be used as a noise countermeasure for digital circuit applications, as well as component for common mode inductance.

The working principle of the 1331R-332K is firstly that current passing through the windings of the coil generates a magnetic field, which opposes changes in the current. This induced magnetic field induces a voltage potential at the only points in the coil to oppose the small change of current through the inductor. This resulting voltage is referred to as the inductor\'s self-induced voltage. Secondly, when the terminal of the coil is removed from the circuit, the energy stored in the coil is converted back into electric energy due to the inductance property of the coil. The resulting energy causes the coil to remain electrically charged.

To sum up, the 1331R-332K fixed inductor holds a variety of application fields including being used as an RF filter, suppression of EMI, DC-to-DC stabilizer, power supply filter, and noise countermeasure for digital circuits. It works by generating a magnetic field that opposes changes in the current, and when the terminal of the coil is removed from the circuit, the energy stored in the coil is converted back into electric energy due to the inductance property of the coil.

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