SC1608C-681

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Fixed Inductors come in many forms, from discreet components to network and surface mount packages. One example of a commonly used fixed inductor, is the SC1608-681. This paper will discuss its application field, and its working principle.

Application Field

The SC1608-681 is a surface mount inductor which is used mainly in applications such as Power Supplies and Switch-Mode Power Supplies. It is suitable for wide-ranging capacitive input applications, such as DC/DC converters, active power filters, and active noise cancellation. It has been designed for use with circuits requiring a high inductance value, as its wire wound construction provides a low resistance inductance for clean power delivery.

The SC1608-681 is also suitable for use in high frequency circuits, such as RF power amplifiers, as the low resistance signal path helps to minimize Signal Loss and improve power delivery. Additionally, the SC1608-681 is designed to function over a wide range of temperature, due to its high quality terminations which ensure reliable connections.

Working Principle

The underlying principle of operation of a Fixed Inductor such as the SC1608-681 is based on Faraday’s law of induction. When a time varying current is passed through a coil of wire, a varying magnetic field is generated. This field then induces an electromotive force (EMF) in the coil, which can be expressed as:

E = -N * dBdt

Where E is the EMF, N is the number of turns, and B is the magnetic flux.

In the SC1608-681, the winding consists of multiple layers of wire, which, due to its construction, increases the inductance of the coil and which helps to minimize any power loss when transferring electrical energy. In addition, the ferrite core helps to amplify the induced EMF, thus achieving an even more efficient power transfer.

The SC1608-681 is also designed to minimize stray inductance. This is due to the design of the wire wound inductor, which ensures that all currents running through the coil are in the same direction.

Conclusion

The SC1608-681 is a surface mount inductor, which is suitable for a wide range of applications, such as power supplies and switch-mode power supplies. Its high inductance value ensures efficient power delivery, whilst its low EMF resistance helps to minimize signal loss. The SC1608-681 also has a ferrite core which helps to amplify the induced EMF, as well as a high quality termination which ensures reliable connections in a wide range of temperatures.

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