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Through Hole Resistors - H820RBDA application field and working principle

Through hole resistors, or THRs, are components used to reduce the electric current in an electrical or electronic circuit. They are often used in high-voltage and low-current circuits. The H820RBDA type of THR is a popular choice among engineers due to its low cost, high power rating, and excellent reliability and durability. In this article, we will discuss the application fields, structure, and working principle of the H820RBDA THR.

Application Fields

The H820RBDA THR is a plastic film-based resistor that is typically used in high power, high voltage, automotive, and computer applications. The THR\'s robust construction helps it withstand high temperatures and environmental conditions. It\'s also resistant to electrical noise, making it an ideal choice for environments where precision is critical.

The H820RBDA THR is also an excellent choice for use in industrial settings. Its ability to handle a wide range of temperatures and its rugged construction make it ideal for use in factories, as well as in mining and agricultural sites.

Structure

The H820RBDA THR consists of a thin, printed plastic film made up of several layers, each of which is covered with a layer of carbon and a layer of metal. The plastic film acts as an insulator, while the carbon and metal layers provide the necessary resistive power. This makes the H820RBDA resistant to heat, vibration, and extreme environmental conditions.

The H820RBDA THR also contains several leads or terminals. These terminals are used to attach the resistive element to the power supply. Some models of the THRs come with a built-in heatsink, which helps dissipate heat more efficiently and prevent the THR from getting too hot.

Working Principle

The working principle of the H820RBDA THR is based on Ohm\'s law, which states that the current through a resistor is in direct proportion to the potential difference applied across it. This means that when a certain level of electricity is applied across the H820RBDA THR, it will reduce the voltage and current. The amount of resistance offered by the THR is determined by its size and construction.

The H820RBDA THR works by dissipating electrical energy as heat. When an electrical current passes through the THR, some of the energy is converted into heat, which is then dissipated into the surrounding environment. This process reduces the amount of energy that is available to the circuit, thus reducing its power consumption.

Conclusion

In conclusion, the H820RBDA THR is a reliable and durable component that is perfect for a wide variety of high power, high voltage applications. Its sturdy construction makes it resistant to heat, vibration, and environmental conditions. It is also capable of dissipating electrical energy as heat, allowing it to reduce the amount of energy needed to power a circuit. With its low cost, high power rating, and excellent reliability and durability, it is no wonder the H820RBDA THR has become such a popular choice among engineers.

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