SD12-821-R

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Fixed inductors are passive components that are widely used in many electrical and electronics fields. The SD12-821-R series, a type of fixed inductors, is a high voltage inductor. It is suitable for high voltage, high power and high frequency switching power supply applications. Its features include very low DCR, a wide operating temperature range and high operating temperature stability.

The construction of the SD12-821-R series is based on the homogeneous 40 The shape of the core and the physical design of the winding, and are optimized to provide the most suitable parameters for the power applications. It has a high winding efficiency and a wide frequency range.

The rated current of the SD12-821-R series is typically 7.5A and its rated primary and secondary inductance is typically 40uh and 80uh respectively. It has a rated operating temperature range of -55 to 125°C. The tolerances of the inductance are tightly controlled with only a ±0.1uH. The primary and secondary DCR of the SD12-821-R series are typically 0.08 and 0.09 ohms respectively.

The application area of the SD12-821-R series is limited to high voltage, high power and high frequency switching power supplies. It can be used in a variety of applications such as power supply supplies lighting, bridge rectifiers, signal transformers, choke coils, filters, boost/flyback converters, and switching regulators. Its high efficiency and low DCR makes it suitable for switching power supply applications.

The working principle of the SD12-821-R series is based on Faraday’s Law of Induction. Faraday’s law states that the induced voltage in a coil is proportional to the rate of change of the magnetic flux through the coil. In this type of inductors, the primary winding has an initial current flowing through it which creates a magnetic field. This magnetic field will induce a voltage across the secondary winding which can be used as a power supply output.

In conclusion, the SD12-821-R series is a type of fixed inductor which is suitable for high voltage, high power, and high frequency switching power supplies. It has a wide frequency range, tight tolerances and high efficiency. It is based on Faraday’s law of induction, which states that an induced voltage will be generated when the magnetic field flux changes. It can be used in power supplies, lighting, signal transformers, choke coils, filters, boost/flyback converters, and switching regulators.

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