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Through Hole Resistors

RWR89SR237FRB12, also known as through hole resistors, are an integral component in many electrical systems. They are usually small in size and highly reliable and are primarily used to ensure efficient transfer of power from one component to another. Through hole resistors are a type of resistor, typically made from resistive materials such as carbon or ceramic, which function by reducing the flow of electric current from one component to the other. In applications such as printed circuit boards, these resistors are soldered into the board to connect two or more components to other parts.

Application Field

The most common application field for through hole resistors is printed circuit boards (PCB). These circuit boards contain a variety of components like resistors, capacitors, transistors, integrated circuits, etc. which are soldered onto the board and electrically connected by through hole resistors. In addition to being used in PCB, through hole resistors are also used to provide isolation between components, reduce noise, filter signals, and many other applications. In automotive systems, they are used for voltage regulation, as well as for controlling the power supplied to electronic systems.

Working Principle

The working principle behind through hole resistors is relatively simple. As current passes through the resistor, the resistive material used in the resistor converts the energy into heat. Large resistors will dissipate more energy in the form of heat than small resistors, thus reducing the resulting current. This reduction in current is represented using Ohm’s law, which states that the current is directly proportional to the voltage, but inversely proportional to the resistance. From this, we can deduce that increasing the resistance within a circuit will result in a decrease in the current.

In most applications, through hole resistors are designed so that their resistance drops over time as the resistive material is burned away, meaning they will eventually lose their power dissipating capability. This is one of the main drawbacks of using through hole resistors, although it can be remedied by replacing the resistors regularly. Some applications may require a resistor with a steadily increasing resistance over time, in which case the resistor is known as a positive temperature coefficient (PTC) resistor.

Conclusion

RWR89SR237FRB12, commonly known as through hole resistors, are a type of resistor used in printed circuit boards (PCB) and other electrical systems. They are usually small and highly reliable and are primarily used to reduce the flow of electric current from one component to the other. Their working principle is relatively simple, with the resistive material used in the resistor converting energy into heat in order to reduce the current within the circuit. These resistors can be subject to burn out, although their life can be extended by replacing them regularly. Through hole resistors are an essential component of many electrical systems and are highly reliable and simple to use.

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