SDE0403A-8R2M Inductors, Coils, Chokes

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Fixed inductors, also known as inductors, are passive components whose main purpose is to add inductance to a circuit. The SDE0403A-8R2M is a fixed inductor, which is mainly used for switching power supplies, DC/DC converters, and other DC voltage conversion applications. It is a high-performance, small size surface-mount package that can be used for high-density, low-cost low-voltage multifunctional circuits.

Design

The SDE0403A-8R2M is a four-pin, surface mount package measuring 0.40 inches x 0.40 inches x 0.3 inches. Its pins are arranged in a square shape. The total inductance of this component is 8.2uH. Its self-resonance frequency is above 2.7 GHz (calculated, measured at 2.75 GHz). The maximum current it can handle is 1.5A. The saturation current for this component is 1.2A. Its maximum DCR is 0.13 ohms. The operating temperature range is -40°C to +55°C.

Working Principle

The SDE0403A-8R2M is a surface-mount type, non-polarizing inductor which works using the inductance property of a coil. When a direct current (DC) passes through the coil, it causes a magnetic field to be generated around the coil. When this magnetic field collapses, the coil induces a certain amount of electromagnetic energy. This energy is then used to create a current flow in the coil as well as the circuit connected to it. The SDE0403A-8R2M works on this principle.

Application Field

The SDE0403A-8R2M is mainly used for switching power grid systems, charging moving devices, DC/DC converters, and other DC voltage conversion applications. It is also used in circuits such as power filters, ballast lighting, electric vehicle charging, and wireless power transmission. Due to its compact size, it is suitable for high-density, high-speed low-voltage power converter applications. It also has a low DC resistance, which means it will consume less power when an application needs to switch between input and output lines. In addition, its high self-resonance frequency minimizes losses that cause reduced efficiency in DC/DC converters.

The SDE0403A-8R2M is an effective component for its range of applications and provides a high level of performance due to its size, cost, and durability. Its design, material choice, and application field make it suitable for many electronic circuits and systems.

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