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Electronic color code

 

 

Here we leave you an illustration of a colour code of the resistors. The resistors are read from left to right.

The resistor
Colour
First colour
Second colour
Multiplied by
Tension
Black
-
0
X1
-
Brown
1
1
X10
+-/ 1%
Red
2
2
X100
+-/ 2%
Orange
3
3
X1000
-
Yellow
4
4
X10.000
-
Green
5
5
X100.000
+-/ 0.5%
Blue
6
6
X1.000.000
-
Violet
7
7
X10.000.000
-
Gray
8
8
X100.000.000
-
White
9
9
X1.000.000.000
-
Gold
-
-
X0,1
5%
Silver
-
-
X0,01
10%

The resistance of the illustration would be 5,1x10.000=510.000 ohms and it has the 5% tolerance.

 

Capacitors color code


 

The capacitor
Colour band
First colour
Second colour
Multiplied by
Tolerance
Tension
Black
-
0
0
+-/ 20%
-
Brown
1
1
X10
+-/ 1%
100V.
Red
2
2
X100
+-/ 2%
250V.
Orange
3
3
X1000
-
-
Yellow
4
4
X10.000
-
400V.
Green
5
5
X100.000
+-/ 5%
-
Blue
6
6
X1.000.000
-
630V.
Violet
7
7
X10.000.000
-
-
Gray
8
8
X100.000.000
-
-
White
9
9
X1.000.000.000
+-/ 10%
-

 

In this case, our capacitor (red, violet, orange, white, red) would be of 27.000 pF with a 10% tolerance and a working power of 250 volts.

There is also a code which shows three numbers and one letter.

 

The second capacitor

 

The first two numbers correspond to the first two colour groups, and the last number corresponds to the number of zeros that are supposed to be added.
We can see it better in the following table.

 

Third number
Multiplied by
0
1
1
10
2
100
3
1000
4
10000
5
100000
6
-
7
-
8
0,01
9
0,1

 

The letters, which sometimes don’t appear, represent the condenser’s tolerance following the next correspondence.

 

Letter
Tolerance
D
+- 0,5 %
F
+- 1 %
G
+- 2 %
H
+- 3 %
J
+- 5 %
K
+- 10 %
M
+- 20 %
P
+ 100 % - 0 %
Z
+ 80 % - 20 %


The capacitor from the above photo, which is marked with “103Z” would be of 10.000 pF with a tolerance 80% above its value or 20% below of what it shows.

Sometimes, a number which has nothing to do with the tables we have seen here is directly etched over the capacitor’s body. In that case, this number is the value of the capacitor always expressed in uF.

 

The value of this capacitor is 0,015 uF
  In this case, the coma would be uF, since the value of this capacitor is 0,015 uF (0 uF 015) or 15.000 pF with a +- 5% tolerance.
the value of this capacitor is 47.000 uF
 

In this other case, instead of the coma we have a dot, but it the same which was previously indicated by uF047 or it is just like 47.000 uF with a 5% tolerance and 250 working volts.