1812R-223G

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Fixed inductors are electrical components consisting of an iron core in the center surrounded by a coil. They can also be constructed using air or ferrite material. The 1812R-223G is a type of fixed inductor, manufactured according to the EIA-1812 standard, with an inductance of 2.2 millihenries and tolerance of ±10%.

Application Field

1812R-223G is a small, miniature type fixed inductor with a wide application range in various electronic equipment. It can be used in switching power supply units, automobile electronics, automotive power systems, digital signal transmission systems, broadcast systems and other equipment. It is suitable for DC/DC converters, filter circuits, and power or voltage amplifiers.

Working Principle

Inductors generate a magnetic field when a current flows through the conductive core, and the magnetic field induces a voltage in the inductor. The induced voltage in the inductor is proportional to the rate of change of the current. The 1812R-223G works on this principle-the current passes through the conductive core and generates a magnetic field, which induces a voltage in the inductor.

When an alternating current (AC) flows through the inductor, the changing magnetic field generates a voltage that opposes the changing current. This opposing voltage is referred to as "back EMF" (electromagnetic force) and it reduces the current. The 1812R-223G inductor uses this principle to limit the current, resulting in a reduced voltage.

The 1812R-223G has a high inductance and is designed to limit the current to safe levels. Its application range is limited by its power dissipation capability, temperature rating, and operating frequency.

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