Product specifications

Instrumentation Laboratory Exercise 60
Appendix A
Resistor color codes
A resistor's value and tolerance are usually coded in with color bands
(a, b, c, tolerance) as illustrated in Figure 1. The colors used for
bands are listed with their respective values in Table 2. A resistor's
value and tolerance are expressed as:
Where the a band represent the tens digit, the b band represent the
ones digit, the c band represents the power of 10, and the tolerance
band represents the tolerance as a percentage of the coded resistance
value.
Figure A-1 Position of wire lead resistor color band
Rab10
c
tolerance% Ω±×=
a b c Tolerance