FCR3WSJT-73-390R

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Through Hole Resistors, like the FCR3WSJT-73-390R, are an essential, widely used technology that provides an effective way to control current flow through an electronic device. They work by changing the electrical property of a circuit, by providing a resistance to the current flow or a voltage drop. Understanding their application field and working principle is vital to a successful design.

Application Field

Through Hole Resistors are the most common type of resistor used to impart electrical resistance to a circuit, as well as change its characteristics and parameters. They can be found in a wide variety of circuits and applications, ranging from low-level signal conditioning and energy regulation to high-voltage power circuits. In general, resistors are used to control the amount of current flowing through a circuit, restrict the voltage produced by a component, provide an adjustable voltage drop, or absorb power when operating in reverse bias mode. The FCR3WSJT-73-390R is a good example of a Through Hole Resistor with a wide range of applications.

Design

The FCR3WSJT-73-390R resistor is a steel sleeve type resistor, so named for the coiled steel sleeve sleeve which provides mechanical support for the resistor wire. The resistor wire is made of a metal alloy, which typically consists of a zinc and nickel composite envelope filled with a mixture of finely ground ceramic particles such as alumina and magnesia. This creates a uniform electrical resistance along the entire length of the resistor. It is also designed to dissipate heat quickly and the sleeve itself can be used as a convenient heat sink if necessary.

Rated Power and Tolerance

The power rating of the FCR3WSJT-73-390R resistor is 5.6 Watts and its tolerance is ±5%. Power rating is a measure of the maximum power which a resistor can handle without damage. Tolerance is a measure of the resistance value accuracy - it is the maximum variation in resistance which is expected between the actual and the design value of the resistor. As a result, the FCR3WSJT-73-390R is suitable for a wide range of power handling and design accuracy requirements.

Working Principle

The working principle of the FCR3WSJT-73-390R is based upon Ohm’s law. Ohm’s law states that the voltage or potential difference across a resistor is proportional to the current flowing through it. As current flows through the resistor wire, it encounters resistance, producing a voltage drop between the input and output nodes. The amount of voltage drop is governed by the resistance value of the resistor wire. By adjusting the resistance accordingly, it is possible to safely control both the amount of current flowing through the circuit and the voltage produced by it.

Conclusion

The FCR3WSJT-73-390R is a Through Hole Resistor that can be used in a very wide range of applications. It utilizes a coiled steel sleeve to provide mechanical support to the resistor wire and utilizes a metal alloy to produce a uniform electrical resistance along its length. Its design is well-suited for both power handling and design accuracy requirements. Finally, it works by providing a resistance to the current flow according to Ohm\'s law and can be used to control both the amount of current and voltage produced by a circuit.

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