CFR-12JR-52-1R6

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Through Hole Resistors are electrical components used to restrict the flow of current through a circuit. They can be characterized by their ohmic value, power rating and temperature coefficient, More specifically, the CFR-12JR-52-1R6 is a through hole resistor with an ohmic value of 12 ohms, with a power rating of 0.25 watts and a temperature coefficient of ±500 ppm.

These resistors are mainly used in telecommunications, automotive, consumer electronics, industrial, lighting, and aerospace applications. For example, in telecommunications, they are used as current-limiting resistors in telephone circuits, internet networks, and digital subscriber lines (DSL). In automotive applications, they are used for such purposes as adjusting fan speed, controlling current in diesel fuel injectors, and regulating headlight brightness. In consumer electronics, they are useful in audio systems, video cameras and cell phones. In the industrial, lighting and aerospace sectors, they are useful for reducing or managing the current flow in these environments.

The working principle of Through Hole Resistors is based on Ohm\'s Law, which states that the current flowing through a conductor between two points is directly proportional to the voltage applied across the two points and inversely proportional to the resistance between them. The CFR-12JR-52-1R6 resistors operate by limiting the current flow to a fixed value as determined by its ohmic value. This prevents overheating of the connect components and helps protect the circuitry from damage.

The material composition of these resistors determines their properties. The CFR-12JR-52-1R6 resistors consist of a ceramic tube filled with carbon granules and are coated with a heat-resistant epoxy resin. The carbon granules have a fixed ohmic value that determines the resistance of the resistor. The temperature coefficient of the resistor is dependent upon the material composition of the carbon granules.

In conclusion, CFR-12JR-52-1R6 through hole resistors are versatile components, used in a broad range of applications. Their variable ohmic value, power rating and temperature coefficient determine the specifics of their use. They operate according to Ohm\'s Law to limit the current flowing through a circuit, protecting it from damage and over-heating. They consist of a ceramic tube filled with carbon granules and are coated with a heat-resistant epoxy resin.

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