Through Hole Resistors

Through hole resistors are an integral part of any electronic circuit. They have been around for quite some time and have been used in various applications ranging from power supplies to machines and communications devices. In order to understand how they work and what their application field is, let us have a look at one of the most popular through hole resistors, UB3C-220RF8.

Application Field

The UB3C-220RF8 is a high power and stability through hole resistor. It features wide temperature and power windows, excellent linearity characteristics, and low noise levels. It is primarily designed for use in industrial, instrumentation, automotive, and communication systems. Specifically, this resistor is meant for high power applications such as automotive power supplies, motor control systems, medical equipment, radiation sources, and medical amplifier circuits. It can also be used in sensitive measurement equipment such as thermocouples, strain gauges, and force transducers. Additionally, the UB3C-220RF8 can be used in audio devices and motion controllers.

Working Principle

The basic working principle of a through hole resistor is quite simple. It works by creating an electrical resistance between two points on a circuit. This resistance is created by two thin strips of metal, usually copper, wrapped around an insulating material, such as ceramic. When a voltage is applied to the resistor, electrons will flow through the resistive paths created by the two metal strips. The resistance created by the two strips will determine the voltage drop across the resistor and the amount of current that can flow through it.

The UB3C-220RF8 through hole resistor has a more complex working principle. Instead of two narrow strips of copper, it has a core consisting of cobalt nickel alloy encased in two ceramic discs. This core is surrounded by a coil of thin wires made from copper, aluminum, and nickel. When current is passed through the winding, it creates a magnetic field that interacts with the core\'s cobalt-nickel alloy to generate a precise resistance. This means that the resistor can be adjusted easily for different applications by changing the number of turns in the windings.

Conclusion

Through hole resistors, such as the UB3C-220RF8, are a versatile component and are an important part of any electronic circuit. They are commonly used in industrial, instrumentation, automotive, and communication systems. Their basic working principle is quite simple, but models such as the UB3C-220RF8 employ a more complex approach, making them highly reliable and adjustable for different types of applications.