SPM5020T-3R3M Inductors, Coils, Chokes

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Fixed Inductors are primary components used in electrical circuits to store energy in the form of magnetic fields and prevent the flow of current. The SPM5020T-3R3M fixed inductor is one example of such a component that meets specific performance requirements. In this article, we’ll take a closer look at its application field and working principle.

Application Field
The SPM5020T-3R3M is a SMD (surface mount device) fixed inductor, meaning it is designed to be placed directly on the surface of a printed circuit board (PCB). This makes it an ideal choice for applications that require a small physical size, such as cell phones, PDAs, and MP3 players. It is a bipolar component, meaning it can be used in both AC and DC circuits. Additionally, it is particularly suited for pulse circuits due to its low profile and low radiation output.

The inductor also has the capability to handle high temperature operation. It features a high saturation current, allowing it to handle high frequency switching, and its high thermal resistance ensures it can be used in power-on applications. The inductor is also RoHS compliant, meaning it is free of hazardous materials, making it suitable for commercial use.

Working Principle
At its core, the SPM5020T-3R3M is based on the principle of inductance. When an electrical current passes through a wire, it creates a magnetic field. This magnetic field produces a reaction in the wire that opposes the current. This opposition is known as inductance, and it is what makes a fixed inductor work. The size of the inductor’s magnetic field is determined by its design, and this affects how much opposition it will produce when a current is passed through it.

In general, the fixed inductor has a low DC resistance, meaning that it is potential-free, and it will not cause any DC or AC losses. It is also designed to minimize the size of its magnetic field, meaning that it will generate less interference with nearby circuitry.

The SPM5020T-3R3M is designed to have an inductance value of 3.3 microhenries, and a current rating of 2.2 amps. It is also designed to have a temperature coefficient of +25%; this number is used to indicate how much the inductor’s inductance will change depending on its operating temperature. This allows the inductor to meet performance requirements in high-temperature applications.

Overall, the SPM5020T-3R3M is a versatile and reliable fixed inductor that can be used in a wide range of applications. Its ability to handle high temperatures and its low profile make it an ideal choice for commercial use. Additionally, its RoHS compliance ensures that it is free of hazardous materials.

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