103R-123JS

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Fixed Inductors

A fixed inductor is an electronic component that is designed to maintain the same inductance throughout its operating range. Its main function is to store energy in the form of an electromagnetic field or current. Fixed inductors come in various sizes and are usually soldered onto and/or embedded in a printed circuit board (PCB).

The 103R-123JS fixed inductor is a surface-mounted device (SMD) used for power-supply applications in consumer electronics, automotive, medical, and high-end industrial equipment. The 103R-123JS has a low profile and is designed to operate in a wide range of temperatures. It provides a higher-than-normal inductance-to-volume ratio, which makes it an ideal choice for many applications.

Working Principle

The 103R-123JS works by creating an electric field that stores energy. This electric field is created when a current passes through the inductor’s metal core. When the current is changed, the electric field shifts and creates a changing magnetic field, which is responsible for storing energy inside the inductor. This shifting electric and magnetic fields act together to maintain the inductance of the 103R-123JS fixed inductor.

The 103R-123JS has a rated inductance of 100 uH (100 microhenries) when tested at a frequency of 100 kHz with a DC current of 1 A. The device has a resistance of 0.18 ohms. Its saturation threshold is approximately 0.6 A, and its temperature coefficient is 36 ppm/°C. It also has an operating temperature range of -40°C to +125°C.

Applications

The 103R-123JS is mainly used in switch-mode power supplies, DC/DC converters, energy-storage systems, power amplifiers, and high-frequency inverters. It is an ideal choice for applications involving higher frequencies, high temperatures, and low-voltage requirements. The device also finds application in embedded systems, such as computers, printers, routers, cellular telephones, and digital devices.

In addition, the 103R-123JS is commonly used in a variety of automotive applications, such as car audio systems, navigation systems, electronic control units, and air-conditioning systems. It is also used in medical equipment, such as diagnostic machines, patient monitoring systems, and defibrillators.

Advantages

The 103R-123JS fixed inductor has several advantages. It offers excellent thermal dissipation, high current capability, low noise levels, and high efficiency. The device is also very small in size and is capable of operating over extended periods of time.

In addition, the 103R-123JS has a higher-than-normal inductance-to-volume ratio, which allows for a smaller design compared to other inductors. It has a low leakage current and is designed to withstand significant voltage spikes caused by short-circuit and ESD (electrostatic discharge) events.

Conclusion

The 103R-123JS fixed inductor is a popular and reliable choice for many applications. Its features and advantages make it a great choice for power-supply, automotive, and medical applications. Its low leakage current, high efficiency, and excellent thermal dissipation make it a great choice for high-temperature applications. Although the device is small in size, it still offers a high-performance solution for many applications.

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