2474R-12K

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Fixed Inductors

Fixed inductors are passive electronic components used to introduce inductance into a circuit. They are also known as inductors, chokes, and coils, and are used in a variety of applications where inductance is necessary in order to function correctly. An example of a fixed inductor, and its application field and working principle is the 2474R-12K.

2474R-12K Application Field and Working Principle

The 2474R-12K is a wideband choke with multiple output states, making it ideal for DC/DC conversions, filter applications, power supply noise suppression, switch-mode inverters and power supplies, and more. The output states are wideband, meaning that output is the same in the various output states regardless of frequency. The range of output states range from 16 mH to 80 μH, making it suitable for a variety of applications.

The 2474R-12K is composed of two sets of interwound windings that are separated by a ceramic layer. The structure allows for a higher inductance that is not possible with different constructions. The interwinding also helps increase the damping effect that is necessary for preventing high frequency noise. Additionally, the 2474R-12K has a low DC resistance of 20 mΩ, allowing for high loop gain. It is also insulated with an acrylic varnish, making it able to withstand temperatures up to 150°C.

The working principle of the 2474R-12K is simple. When alternating current is applied to the inductor, an electromagnetic field is created which induces a voltage across the two windings, thereby creating an inductance. This inductance is proportional to the current passing through the inductor. Thus, by adjusting the inductance, the 2474R-12K can be used to fine-tune or filter a circuit, allowing it to operate correctly.

In conclusion, the 2474R-12K is an example of a fixed inductor with multiple output states that is used in a variety of applications. Its design allows for a wideband output and a high inductance value, as well as a low DC resistance. By understanding the working principle, one can easily see how the 2474R-12K is a valuable component in the world of electronics.

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