103R-100K

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103R-100K is probably the most common fixed inductors. This simple and rugged device has been used in many applications such as power supplies, switching power supplies, power conditioning, as well as medical and instrumentation applications. Its operation is relatively straightforward and the properties are easily understood. This article will explain the application fields, working principle, and specifications of 103R-100K fixed inductors.

Application Field

103R-100K fixed inductors are widely used for two main types of applications. One of the main application fields is power conditioning, especially in applications that require isolated power supply, such as telephone and mobile base station construction, auto-transformers, interconnecting equipment, and power supply to non-isolated loads. The other application field of 103R-100K inductors is switching power supplies. This type of power supply is used in many electronic devices such as televisions, computers, and even medical equipment. They are particularly suited for providing small, low power, and efficient power supplies that are lightweight and have long life cycles.

Working Principle

The operation of a 103R-100K fixed inductor is based on the magnetic field it generates between the two ends of the core. This creates a low impedance path between its terminals, allowing current to flow through it in a controlled manner. As current passes through the inductor, the magnetic field generated will increase and decrease in strength according to the amount of current flowing. This will create an inductive voltage drop which will provide a controlled voltage and power. The key principle behind the operation of this type of inductor is that the magnetic field generated will remain constant for a given current flow. This will allow the flux generated by the ferromagnetic core to stay fixed and provide superior voltage regulation.

Specifications

103R-100K fixed inductors are typically rated for a power dissipation of up to 50 Watts. Their working temperature range is between -40°C to +85°C. The rated voltage of the inductors is 100 Volts, while their inductance value ranges from 1 milli-Henry (mH) to 100 mH. The series resistance of the fixed inductors is usually lower than 200 milli-Ohms, and their tolerance values are usually rated from + 10% to – 20%. Their size and weight are usually quite small, the typical size for a 103R-100K inductor is 20.2mm x 16 mm x 6.25 mm, while their weight can range from 6 to 10 grams.

103R-100K fixed inductors are also designed to meet various safety and environmental standards. These include UL and cUL, CE, and RoHS certifications which is a testament to the capabilities and performance of these inductors. In addition, the metal-enclosed construction and appropriate design of these inductors make them suitable for most industrial environments.

Conclusion

The103R-100K fixed inductors are a versatile device with many applications and are easy to use and understand. Its operation is based on the magnetic field it generates between two ends of its core, to provide excellent voltage and power regulation. These inductors have a wide power dissipation range and are also fully certified to meet various safety and environmental standards. They are small in size and lightweight, making them a great choice for many applications.

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