SP1812R-153J

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Fixed inductors are passive components made of coils of wire that store energy in the form of a magnetic field. There are three main types of fixed inductors: wire wound, ceramic-oriented and film and foil. The SP1812R-153J is an example of a wire-wound inductor.

The SP1812R-153J is a radial leaded inductor that has a high inductance value (2.2µH ± 20%) and relatively low dc resistance (0.13Ω maximum). This makes it an ideal choice for applications that require moderately high inductance with a limited amount of dc resistance. This component is suited for use in a variety of applications, including switching power supplies, power inverters, filters, and decoupling circuits.

This component is constructed with two copper wires wound together tightly on a round ferrite core. The two wires are then wrapped tightly around a ferrite cylinder or bobbin. The core works to amplify the inductance by providing a magnetic field between the wires and achieving a higher inductance value. The cylindrical shape of the core also works to dissipate heat more efficiently than the traditional toroidal and radial shapes.

The working principle of the SP1812R-153J is based on the principle of electromagnetic induction. Electromagnetic induction occurs when a changing magnetic field is applied to a conductive material such as a coil of wire. This results in the production of an induced current in the wire, which then induces a voltage across the wire’s terminals. This is known as an electromagnetic force. By controlling the number of turns of the wire around the core and adjusting the distance between the turns, an engineer can control the resistance of the component.

In summary, the SP1812R-153J is a fixed inductor which is suitable for use in a wide range of applications requiring moderately high inductance with a limited amount of dc resistance. This is achieved by winding two copper wires around a ferrite core to achieve an amplified inductance value. The core also helps to dissipate heat more efficiently. The working principle behind the component is based on the principle of electromagnetic induction, where an induced current in the wire is created when a changing magnetic field is applied.

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