SP1812R-103G

Fixed inductors are one of the most widely used electronic components. They are used in a variety of applications, from consumer electronics to industrial applications, and come in a wide range of shapes and sizes.

One of the most popular fixed inductors is the SP1812R-103G. This is a high-frequency, indoor-rated power inductor designed to be used in DC/DC converters. The inductor is housed in a molded plastic case, and is designed to offer high current capability, low losses, and an anti-corrosion/oil-resistant coating.

The SP1812R-103G uses a ceramic core and is designed to have a high rated current, allowing it to handle high levels of power. The inductor features a multi-stage winding design that provides excellent high frequency performance. It also has an inductance range of 0.1 to 47 uH and a high saturation current of 3.3A.

In terms of applications, the SP1812R-103G can be used in DC/DC converters, voltage regulators, high frequency switching regulators, and voltage-mode controllers. It is also suitable for high frequency buck and boost converter circuits, as well as inverters. The inductor can also be used in power factor correction (PFC) circuits, audio Amplifiers, and power supplies.

In terms of working principle, a fixed inductor works by storing energy in its magnetic field. When electrically excited, the inductor resists a change in the current that flows through it. This resistance to change is known as inductance. The more windings an inductor has, the greater its inductance. The SP1812R-103G has an inductance of 0.1 to 47 uH, which is substantial compared to other fixed inductors.

When current flows through the SP1812R-103G, it creates an electromagnetic field around it. This field induces a voltage in other objects that are near it. This induced voltage is what is known as the back-EMF voltage, which is the voltage that is present across the inductor when the current in the inductor is not changing.

The SP1812R-103G is an excellent, high-quality inductor that is suitable for a wide range of applications. It is designed to offer high current capability, high frequency performance, and low losses. It is a great choice for use in DC/DC converters, power factor correction circuits, and other power systems.