Components and Electronics
Components used in Electronics
Resistor colour codes - Trevor Briggs - 16/06/2015
After the last club night I offered to put on the web site a brief explanation of how to read the resistor colour code, so here it is
The colour bands used are as follows;-
0 Black
1 Brown
2 Red
3 Orange
4 Yellow
5 Green
6 Blue
7 Violet
8 Grey
9 White
There are also two metallic colours which I will get to later. The value is read with the metallic colour to the right as follows,
1st band gives the first digit
2nd band gives the second digit
3rd band gives the number of noughts
4th band metallic, gold or silver
So the colours on your resistor may be brown, black, red, gold
This gives a value – brown=1
Black =0
Red = 2 noughts
So the value of your resistor is 1000 ohms, the last band, gold, gives the tolerance in this instance 5%, silver would give a tolerance of 10%, that is + or – 5% or 10% of the value of the resistor.
I hope that is clear and will be of use to folk trying to get to grips with LED lighting.
After the last club night I offered to put on the web site a brief explanation of how to read the resistor colour code, so here it is
The colour bands used are as follows;-
0 Black
1 Brown
2 Red
3 Orange
4 Yellow
5 Green
6 Blue
7 Violet
8 Grey
9 White
There are also two metallic colours which I will get to later. The value is read with the metallic colour to the right as follows,
1st band gives the first digit
2nd band gives the second digit
3rd band gives the number of noughts
4th band metallic, gold or silver
So the colours on your resistor may be brown, black, red, gold
This gives a value – brown=1
Black =0
Red = 2 noughts
So the value of your resistor is 1000 ohms, the last band, gold, gives the tolerance in this instance 5%, silver would give a tolerance of 10%, that is + or – 5% or 10% of the value of the resistor.
I hope that is clear and will be of use to folk trying to get to grips with LED lighting.
