Reading color coded resistors is easy, if you know how. When you say reading, you really mean knowing the value of a resistor, before you put it in a circuit.

Reading color coded resistor's value is a basic knowledge or skill that one should have if they are into electronics and electricity. It is one of the foundation skills needed.

How to read resistor color code VIDEO
In school, we were taught this code: Bad Boy Rape Young Girls But Violeta Gave Silver Gold

 That code is used to know the value of the colors.

To fully understand and a tutorial on how to read the value of a resistor through its color codes, we've selected the best sites around. Browse and enjoy.

How to read Resistor Color Codes
Resistors are color coded for easy reading. Imagine how many blind technicians there would be otherwise.
To determine the value of a given resistor look for the gold or silver tolerance band and rotate the resistor as in the photo on the left. (Tolerance band to the right-- refer to the tolerance chart below for exact values.). Look at the 1st color band and determine its color. This maybe difficult on small or oddly colored resistors. Now look at the chart and match the "1st & 2nd color band" color to the "Digit it represents". Write this number down. Read more...

Resistor, Capacitor and Inductor
For example, a resistor with bands of yellow, violet, red, and gold will have first digit 4 (yellow in table below), second digit 7 (violet), followed by 2 (red) zeros: 4,700 ohms. Gold signifies that the tolerance is ±5%, so the real resistance could lie anywhere between 4,465 and 4,935 ohms.
Resistors manufactured for military use may also include a fifth band which indicates component failure rate (reliability); refer to MIL-HDBK-199 for further details. Read more...

How to Read Resistor Color Code
Resistors can come in different sizes and shapes allowing for different voltages to go through it. However, unless the size of the resistor is large, the code is rarely written on it because it would require very tiny markings. Therefore, a system was developed to use colors to determine the resistor code. In other words, by using different colors, an average user can determine exactly what the Ohms are for the resistor. Read more...
Resistor Color Codes - How to Read a Resistor 
Most resistors are color coded with multiple bands to identify the resistance value and the tolerance. While actually measuring the resistance before using it is a good idea, it's also a good idea to know what the resistance is supposed to be. Resistors (especially carbon composition) can drift in their actual resistance. Keep a stock of fresh resistors on hand. Use the following Standard EIA color code tables to identify resistors, or you can calculate the values on your your resistors using our handy resistance calculator. Click here to calculate the value of your 4-band resistors, or here for your 5-band resistors. Read more...

Resistor Color Code Calculator 
The calculator above will display the value, the tolerance and performs a simple check to verify if the calculated resistance matches one of the EIA standard values. Select the first 3 or 4 bands for 20%, 10% or 5% resistors and all 5 bands for precision (2% or less), 5-band resistors. Hover above the tolerance for min. and max. range values. Read more...

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1 comment:

Peter Enmore said...

Great article about resistors. Resistors can be difficult to understand at first, but once broken down in to type and code it becomes much easier. Great post!