This document discusses resistor color coding and how to determine the value of a resistor based on the colors of the bands. It outlines the steps to identify the digits and tolerance based on the first three color bands and fourth tolerance band. The first band represents the first digit, second band the second digit, third band the number of zeros, and fourth band the tolerance. Common tolerance colors are gold (±5%) and silver (±10%). Examples are provided to practice identifying resistor values from given color codes and vice versa.

1. Resistor Color
Coding
Presented by:
Joseph P. Arnido Jr
INSTRUCTOR, COLEGIO SAN AGSTIN BACOLOD

3. ERRSISTO
RESISTOR

4. ERSISANCET
RESISTANCE

5. MOH
OHM

6. STEPS IN DETERMINING THE VALUE
OF THE COLOR CODED RESISTOR
• Hold the resistor. Look for
the 3 colors which they are
near on each other. Place it
on your left side.

7. •Look for the 1st color.
The first color represents
to the 1st significant digit
of the resistor.

8. •Look for the 2nd color.
The second color
represents to the 2nd
significant digit.

9. •Look for the third color.
The third color
represents to the
number of zeros.

10. •Look for the 4th color.
It represents to the
TOLERANCE of the
resistor.

11. Copy the digit Copy the digit Number of zero/s Minimum and
Maximum Value
ACTUAL VALUE TROUBLESHOOTING

12. COLOR 1ST BAND 2ND BAND 3RD BAND 4TH BAND/
TOLERANCE
BLACK 0 0 0
BROWN 1 1 1
RED 2 2 2
ORANGE 3 3 3
YELLOW 4 4 4
GREEN 5 5 5
BLUE 6 6 6
VIOLET 7 7 7
GRAY 8 8 8
WHITE 9 9 9
GOLD ± 5%

13. NOTE:
Only Gold and Silver
are the 2 colors that can
be found in the 4th band
4th band : TOLERANCE

14. 1st band
GREEN
5
2nd band
BLACK
0
3rd band
ORANGE
000
4th band
SILVER
±10%OHMS

15. GREEN BLACK ORANGE SILVER
±10%
ACTUAL VALUE
50000 OHMS

16. REVERSE
VALUE COLOR BANDS
350 OHMS ±5%
Orange
Green
Brown Gold

17. NOTE:
Never use color
BLACK as the first color
band of the resistor.

18. Work by pair
What is the value of the resistor?
1.Blue, Green, Black, Orange, Gold
2.Yellow, White, Red, Silver
3.Brown, Black, Brown, Silver

19. Work by pair
What is the set of colors of this
given resistance?
1. 10Ω ± 5%
2. 850,000 Ω ± 10%
3. 70,000,000 Ω ± 5%

20. EVALUATION
A.Identify the value of resistor with the given set of colors.
1. Brown, Black, Brown, Gold
2. Red, Green Black, Silver
3. Brown, Green, Orange, Silver
4. White, Yellow, Yellow, Silver
5. Green, Violet, Blue, Gold
B. Determine the colors of the resistor.
1. 12 ± 5%
2. 47 ± 5%
3. 100 ± 10%
4. 37, 000 ± 5%
5. 22, 000, 000 ± 10%

21. ASSIGNMENT
Research on how to
troubleshoot a resistor?

22. THANK
YOU!