Introduction
Hello. My name is Phi.
This time I would like to write about the specifications and types of resistors. It all started when I saw the number "1/16W" on a resistor and thought, "What the heck is this?" I was wondering what it was. As I looked into it, I found out that there are many types of resistors.
Some of you may be thinking, "Oh, resistors..." but if you read it again, you may find something new, so please bear with me until the end.
Figure 1: Resistance
When I heard the word "resistance," all I could imagine was what is shown in Figure 1.
To be honest, I had no idea that there were other resistors.
When I actually looked into it, I found out that resistors must be used differently depending on the application.
Before introducing the types of resistors, I would like to review the typical specifications.
Specifications of Resistors
Table 1 shows typical specifications of resistors.
Table 1: Typical Specifications of Resistors
The "1/16W" that I wondered about at first was the rated power.
Table 1 shows that there are many points to be considered when using resistors, such as error, heat, and so on.
If the rated power is exceeded...
What happens if the rated power is exceeded?
Figure 2: Resistor circuit
As an example, consider a circuit with a 1 V voltage source and a 1 Ω resistor connected in series (Figure 2).
At this time, the power consumed by the resistor is as follows:
1A×1V=1W・・・・・・・・・(1)
If a resistor with a power rating of 1/16W is used in this case, the resistor will burn and smoke and smell will be generated.
In the worst case, the resistor may catch fire, which is very dangerous, so please check the power rating carefully before using the resistor.
Types of Resistors
Next, we would like to introduce the types of resistors.
Table 2 summarizes typical types of resistors and their characteristics.
Table 2: Types and Features of Resistors
In addition to the above, there are many other types of resistors.
To be honest, it's hard to understand them with only text, so I made up an image character .
Please use it only as a reference since it is only an image!
What do you think? Each of them has its own unique characteristics!
Table 3 summarizes the specifications of each type of resistor.
(*Numbers are for reference only. Medium and high power resistors are for illustration only.)
Table 3: Specifications and Features of Various Resistors
Summary
In this article, we summarized the specifications and types of resistors!
Once again, we have learned that there are various types of resistors and that each type needs to be used in different ways depending on the application.
Since we were able to compare the specifications of each type of resistor, we will pay attention to them when selecting resistors in the future.
I hope you enjoy the next installment of this blog!
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