CFR200J12K

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Through Hole Resistors – CFR200J12K application field and working principle

Through Hole Resistors, also known as through-hole mount or leaded components, are components that require soldering to clearly fix them on a Printed Circuit Board (PCB). A basic through hole resistor consists of a metal or cylindrical component that is connected to a pair of metal leads to provide a path for the flow of electricity. Examining a through hole resistor closely, it can be identified that one lead is longer than the other. The longer lead is usually referred to as a positive lead and the shorter as a negative lead.

The most common type of through hole resistors are the CFR200J12K. They are carbon-film resistors that are used in many small-scale electronic projects for setting reference voltages, limiting small and large current that passes through a circuit, and controlling signal frequencies. The CFR200J12K resistors have an extremely wide application field, making them the first choice for circuit designers when considering the types of resistors required for their projects.

In terms of their physical appearance, the CFR200J12K resistors have the standard size of 8.7 millimeters in length and between 4.8 and 5.2 mm in diameter. The lead silkscreen must have a thickness of at least 0.3 mm. The leads of the resistor are 0.8 mm long to suit the standard lead spacing for larger components.

Working Principle

The primary working principle behind the CFR200J12K resistor is to restrict the flow of electricity. Depending on the resistive value, they will allow certain amount of electric current to pass through or decrease the amount of voltage entering the circuit. Their limiting power is indicated in ohms, which is represented by the letter “R”. By the ohm value, it is possible to determine the amount of electricity that can enter or pass through the reverse of the resistor.

For instance, in the case of resistor CFR200J12K with a 0.5 ohm value, it can allow very limited power to be passed through it. This resistance is measured as a direct reduction in electric power from one side of the resistor to the other. It means that the power entering the resistor leaves the resistor at a lower voltage than when it entered it and a lower current than what is allowed by the ohmic value.

Conclusion

The CFR200J12K resistor is a type of through-hole resistors that come with a wide application field. It is specifically designed to reduce the flow of electricity in a particular circuit and is limited in terms of its ohmic value. The resistor’s limitation of the current is regulated by the resistive value which is ultimately responsible for the proper operation of the circuit. For these reasons, CFR200J12K resistors are regularly used by electronic designers or circuits that require a resistor with the right amount of electrical resistance and size.

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