Standard
Color Code System
In the standard color code
system, four bands are painted on the resistor,
as shown in Figure 4.3
Figure 4.3 Standard
color code system.
-
The color of the first band indicates
the value of the first significant
digit.
-
The color of the second band indicates
the value of the second significant
digit.
-
The third color band represents
a decimal multiplier by which the
first two digits must be multiplied
to obtain the resistance value of
the resistor.
The colors for the bands
and their corresponding values are shown
in the following Table 4.1.
Table 4.1 Band
Color Number Values
The percent tolerance of
carbon-film resistors is indicated by the
fourth color band. A gold color indicates
that the tolerance is 5%; a silver color
indicates that the tolerance is 10%.
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