H8820RBYA

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Through Hole Resistors are one of the most common types of resistors, often used in applications of high power or frequency. The H8820RBYA is one such through-hole resistor, known for its robust and reliable performance in challenging environments. In this article, we\'ll explain what the H8820RBYA is, what its main applications are, and how it works.

What is the H8820RBYA?

The H8820RBYA is a through-hole resistor made of a ceramic body and aluminum strips. It is designed to provide good current tolerance in high temperature and high frequency applications. The resistor is rated for up to 16 watts of power and can handle high voltage of up to 100 volts. It is available in a range of resistance values, from 0.1 ohms to 10 kilo ohms.

Application Field of the H8820RBYA

The H8820RBYA is most commonly used in applications that require a high degree of accuracy and robustness in challenging environments. Its ability to handle high temperatures and frequencies makes it especially useful in high-power applications, such as automotive, industrial, and power electronics. The resistor is also used in military, aerospace, and medical applications, where its robust construction and extreme temperature tolerance are must-have attributes.

Working Principle of the H8820RBYA

At the core of the H8820RBYA is a strip of good conductor, such as copper or aluminum, that has been plated with a thin layer of ceramic. This ceramic layer works as an insulation layer, ensuring that the current does not move through the strip directly, but only through the ceramic layer. As the current moves through the ceramic layer, it encounters resistance, which is how the resistor is able to control the flow of current. The resistance is adjustable by changing the thickness of the ceramic layer, giving the H8820RBYA a wide range of values.

The construction of the H8820RBYA also helps ensure that it is able to maintain its accuracy even in high temperatures. The aluminum strips are surrounded by a ceramic sleeve, which helps reduce thermal losses. The ceramic layer also helps reduce what is known as the “temperature coefficient”, which is a measure of how much a resistor’s resistance changes with temperature. With its excellent temperature stability, the H8820RBYA can be used in environments with extreme temperatures with little to no change in its resistance.

The H8820RBYA is also very robust when it comes to handling higher frequencies. As frequencies increase, the inductance and the capacitance of the resistor can create unwanted effects, such as ringing and noise. The H8820RBYA’s ceramic layer helps reduce these effects, making it ideal for applications with frequencies of up to 1 MHz.

Conclusion

The H8820RBYA is a through-hole resistor that is ideal for applications that require a high degree of accuracy and robustness. With its ability to handle high temperatures and frequencies, as well as its excellent temperature stability and robust noise characteristics, the H8820RBYA is one of the most versatile resistors available. When it comes to handling demanding environments, the H8820RBYA can be relied on to provide reliable and accurate performance.

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