19 Nov

Power resistors are used in a vast number of applications. Some of their most common applications include the simpler ones like power supplies to the more complicated ones like the military systems such as SONAR and RADAR. Though you can easily find a power resistor to suit your particular application and needs, you have to remember to take note of a few important things in choosing the most fitting power resistors for your requirements. In this article, you will learn more about what these things you must consider when you go about choosing power resistors.

Before choosing a power resistor, you should be aware of a basic law of electronics, that is the Ohms Law. And according to this law, the current that will go through a resistor is inversely proportional to the resistance and directly proportional to the voltage that is found across it. The current that flows through the resistor is capable of producing heat. When you think about heat dissipation, this is also a major factor that would have some influence on how you choose for resistor. Get the best high power resistor or check out this current sense resistor.

Now, as you go about choosing the right power resistors for the application that you have in mind, you just have to remember one thing first. When choosing power resistors, you should find one that will be able to withstand the heat that it generates without doing any short- or long-term physical damage and deterioration in its performance. The current that flows through the resistor is capable of producing a rise in temperature of the resistor about of its expected ambient temperature. The resistor should have some way to have this heat dissipated. Additionally, the resistor that you choose should be able to withstand physically the rising temperature that it would be experiencing.

The ability of power resistors to dissipate and withstand heat is affected by its physical size as well as construction. Keeping this fact in mind, you have to take note of the following key features in the power resistor that you choose. First, you have to know the resistance value that it requires. Second, you have to know that Watts that must be dissipated by your choice of power resistor. Third, you have to consider the physical size that is required in association with its volts, environmental and mounting conditions, maximum temperatures, and Watts dissipation. Lastly, make sure that you consider the most fitting resistor construction.

Keeping all of these things in mind, when you choose power resistors, you have to get into the details of the above mentioned factors so you know that you are making the right decision with your purchase.

Comments
* The email will not be published on the website.
I BUILT MY SITE FOR FREE USING