S1812-103J

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Fixed inductors, also known as chokes, coils or reactors, are passive electronic components. They are usually constructed of one or more turns of wire, often wrapped around a core made of iron or ferrite. The purpose of an inductor is to introduce inductance into a circuit, usually as part of a DC power supply to reduce ripple, or to store energy in an AC or RF circuit. Examples of fixed inductors include the coil inductor, ceramic inductor, shielded inductor and wire-wound inductor. Among them, the S1812-103J inductor is one of the common fixed inductors in electronic circuits.

S1812-103J, as its name implies, is a small surface mount inductor with a maximum current rating of 2A, which is suitable for small and medium power electronic circuit applications. The chip size of this product is only 1812, that is, 1.8mm Wide, 1.2mm High. Due to its small size and high power dissipation capability, it is widely applied in power management circuits, such as buck and boost converters, switching power supplies, and DC-DC converters.

In addition to its small size, S1812-103J also has a low “core loss”, which is the energy consumed by the core material as it shrinks and expands due to changes in magnetic field strength. This low core loss helps the inductor dissipate heat more efficiently, resulting in a longer product lifetime.

The working principle of the S1812-103J inductor is still based on the principle of electromagnetic induction. When AC current passes through the inductor coil, a magnetic field is generated around the coil, creating a reactive magnetic “ inductance”. This inductance exhibits a voltage drop in the circuit, which has the effect of reducing the current flow. The higher the frequency of the current, the greater the voltage drop.

S1812-103J is a high-performance, small-size, low-profile fixed inductor. It has excellent performance, low core loss, and small size. Suitable for high frequency switching power supply, dc-dc converter, and other circular Electronics applications. Its applications include communication systems, notebooks, DC/DC converters, automotive electronics, LCD monitors, electronic fans, portable DVD players and many other applications.

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