SRP4012-R22M Inductors, Coils, Chokes

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Fixed Inductors

Fixed inductors are passive electronic components used in fixed-frequency circuits and switching circuits to realize various filtering and energy-accumulating requirements. Fixed inductors are widely used in a variety of applications including electronic circuits, cell phone audio amplifiers, radio frequency circuits, LCD backlight inverters and various switching power supplies.

SRP4012-R22M

SRP4012-R22M is a fixed inductor that offers a high-current rating, reliable performance, and low self-inductance. It is designed with a unique construction to achieve a comparatively high current rating for a fixed inductor in its size. This durable product is suitable for a variety of circuits in particular, telecommunications, radar, and navigation systems.

Application Fields

The SRP4012-R22M is an excellent choice for a variety of applications, particularly in signal and power circuit applications, in particular:

• RF/Wireless Communications - The SRP4012-R22M can be used in high-frequency applications including wireless infrastructure and base station equipment.
• Audio Amplifier - The SRP4012-R22M can be used in audio amplifiers and loudspeakers for mobile phones, automotive systems, and home electronics.
• Switching/Inverting Power Supply - The SRP4012-R22M is used in switch mode power supplies, as well as inverters and DC-DC converters.
• Satellite Applications - The SRP4012-R22M can be used in various satellite applications including receivers, transmitters, and antennas.

Working Principle

To better explain how the SRP4012-R22M works, it’s important to explain some of the key principles behind its operation.

The SRP4012-R22M is essentially a coil of wire tested at high frequency. At frequencies up to about 1 MHz, the inductance of the SRP4012-R22M is almost equal to the self-inductance of a coil. This occurs because, at those frequencies, the skin effect is not yet significant. As the frequency is increased, the inductance of the SRP4012-R22M begins to decrease, due to the skin effect.

This decrease in inductance is compensated for by adding a core to the coil. The core increases the number of magnetic lines of flux passing through the coil, thereby increasing the inductance. At higher frequencies, the inductance of the SRP4012-R22M approaches the self-inductance of the coil plus the inductance of the core, due to the increased effect of the core.

To summarize, the SRP4012-R22M is a combination of a coil of wire and a magnetic core, designed to work at high frequencies. This combination allows the SRP4012-R22M to maintain a high-current rating while providing reliable performance.

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