SP1812R-333K Inductors, Coils, Chokes

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Fixed Inductors

A fixed inductor is an electronic component that stores energy in a magnetic field when electric current flows through it. It is composed of several turns of insulated copper wire wound on a core of ferromagnetic material. The SP1812R-333K is a fixed inductor commonly used in switching power supplies and DC-DC converters.

Application Field

The SP1812R-333K inductor is most commonly used in DC-DC converters, which are used to convert a DC voltage from one level to another. It is also used in switching power supplies, which provide power to computers and other electric equipment. It is available in a variety of power levels, from 3.3V to 30V, and can handle up to 20A of current.

Working Principle

When current passes through the inductor, it creates a magnetic field around the core. This magnetic field stores energy and is said to "induct" a voltage, producing a voltage drop across the inductor. As a result, the inductor resists the current and acts like a small resistor, producing a low-frequency ripple on the output voltage.

The SP1812R-333K has an operating temperature range from -20C to 85C, and is low cost and compact in size. Thanks to these characteristics, it is a popular choice for many DC-DC converter and switching power supply applications.

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