12
Determining Resistor Values:
To determine the value of a resistor, use the color bands on the
resistor and the table on the following page.
Resistor Color Code Table
1st
2nd
Tolerance
Color
Digit
Digit
Multiplier
(Percentage)
Black
0
0
1
Brown
1
1
10
Red
2
2
100
Orange
3
3
1,000
Yellow
4
4
10,000
Green
5
5
100,000
Blue
6
6
1,000,000
Violet
7
7
10,000,000
Gray
8
8
100,000,000
White
9
9
1,000,000,000
Gold
+/- 5%
Silver
+/- 10%
No Color
+/- 20%
Example:
1st color band is blue so the first digit is a 6
2nd color band is red so the second digit is a 2
3rd color band is yellow so multiply 62 x 10,000
4th color band is gold so the tolerance is ±5%
Your Resistor value is 620,000 Ohms (620k
Ω
) with a tolerance
of ±5%.
Blue
Red
Yellow
Gold