SP1210-822G

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Fixed inductors are passive electronic components that store energy in a magnetic field when an electric current passes through it. They are usually used to increase the effectiveness of an electrical circuit by allowing an electrical signal to flow through a large number of turns of wire instead of using a single wire with just one turn. The SP1210-822G is a type of fixed inductor.

Application Field of SP1210-822G

The SP1210-822G is a fixed, radial-leaded inductor with a ferrite core material. It has an inductance value of 8.2 mH and a rated current of 2.2 A (RMS), and is mainly for switching power supplies, DC-DC converters, and other high-current applications. It also works well in filter circuits, voltage-stable circuits, and energy-storing circuits. Due to its high-temperature and temperature-resistant features, it is suitable for applications that have relatively high working temperatures.

Working Principle of SP1210-822G

The working principle of the SP1210-822G fixed inductor comes from the principle of electromagnetic induction. When the electric current in the coil of the inductor increases, the electromotive force (EMF) generated by the inductor is in opposition to the increase of the electric current, and this is called “self-inductance”. Thus, an increased self-inductance leads to a decrease in the amount of current that can flow through the inductor. This means that for the fixed inductor, the current always lags behind the voltage, and the voltage always leads the current. As the current of the coil reaches its maximum level while the load current passes through the coil, the inductor’s coil will store energy in the magnetic field.

As the load current ceases to pass through the coil, the energy stored in the magnetic field will be released as an electro-magnetic force, thus reversing the direction of the electric current. This reverse current will continue to reduce the current in the coil and the energy stored in the magnetic field will gradually decrease. When the electric current goes to zero, the energy stored in the magnetic field will also be zero.

The SP1210-822G fixed inductor is a very effective device when it comes to providing sufficient and stable current in an electrical circuit. It can be used for various applications, such as switching power supplies and DC-DC converters, that require high inductance operation and long life. Its high temperature and temperature-resistant features make it suitable for many applications where high temperatures are present.

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