20J680E

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Through hole resistors are one of the oldest and most widely used electronic components available on the market today. The 20J680E is a commonly used resistor and is used in a variety of applications. Before looking at the specific application field and working principle of the 20J680E it is useful to have a basic understanding of what through hole resistors are and how they work.

Through hole resistors are components that resist the flow of electrical current. Think of them like a pipe with water. When water flows through the pipe, it is resisted by the walls of the pipe. Similarly, when electricity flows through a through hole resistor, it is resisted by the metal components of the resistor. In other words, the flow of electricity is restrained. This is very useful when it comes to controlling the current in, for example, a circuit.

The 20J680E is one of the most common through hole resistors available. It is a surface mount resistor, meaning that it is designed to be attached to a surface rather than inserted into a hole. It is a three terminal through hole resistor with a power rating of 250mW and a maximum working temperature of +125 degrees Celsius. It has a tolerance level of 1%, meaning that the actual resistance value may vary from the stated value by up to 1%.

The 20J680E has many applications. It can be used in amplifier circuits, signal conditioning circuits and in most electronic devices that use transistors. Additionally, it is often used in railway applications as it is resistant to both short circuits and overloads. A common example of its use is in the protection of electronic components from voltage surges that may occur on the railway line.

The working principle of the 20J680E is quite simple. When an electrical current is passed through the resistor, it produces heat, which is dissipated into the environment. This heat is inversely proportional to the amount of current passing through the resistor; the greater the current, the greater the amount of heat produced. This heat can be used to inform the circuit of the amount of current flow, which can be used for controlling the current in the circuit.

In conclusion, the 20J680E is an incredibly versatile through hole resistor. It is commonly used in a wide range of applications and is well suited to use in railway applications. It works by dissipating heat inversely proportional to the amount of current flowing through it, which can then be used to control the circuit. The 20J680E is a popular choice for many engineers due to its reliable performance and good tolerance level.

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