SD18-681-R

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Fixed inductors are electronic components consisting of one or more coils and are used for energy storage or signal decoupling. The SD18-681-R is a type of fixed inductor with a wide range of applications and working principles.

Aesthetically, the SD18-681-R is a horizontally-mounted, fixed inductor composed of two, 4.2mm x 4.2mm mica-encapsulated coils and a polyimide insulation sleeve. Regarding its physical properties, the SD18-681-R weighs 2.35g and has an inductance value of 68s.

The SD18-681-R is designed for both high-temperature and high-frequency applications. Thanks to its polyurethane/polyimide insulation sleeve which prevents contact between the coils, the operating temperature range of the SD18-681-R is -55°C to +125°C. It has a high frequency range of up to 30 MH.

Due to its physical properties and design, the SD18-681-R can be used in many different applications. For example, it is commonly used for pulse power applications, DC-DC converters, as well as for power supplies. It can also be used for current limitation and control.

The working principle of the SD18-681-R is based on Faraday’s law of induction. This law states that when a magnetic field is generated, an electric field is produced by the changing magnetic flux. Thus, in the case of the SD18-681-R, an electric field is generated as the electric potential in one coil changes, which then passes through the other coil. This electric field generates a current, which then creates a magnetic field in the opposite direction of the initial field. This in turn creates an opposing electric field in the first coil, thus allowing the SD18-681-R to store energy.

In summary, the SD18-681-R is a type of fixed inductor which is designed for high-temperature and high-frequency applications. It is composed of two, mica-encapsulated coils with a polyimide insulation sleeve. The SD18-681-R has an inductance value of 68s and an operating temperature range of -55oC to +125°C. It is primarily used for pulse power applications, DC-DC converters, and power supplies. Finally, its working principle is based on Faraday’s law of induction.

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