| Color | First Band | Second Band | Multiplier Band 3 |
Tolerance Band 4 |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Black | 0 | 0 | 1 Ohm | |||||||
| Brown | 1 | 1 | 10 Ohm | ±1% | ||||||
| Red | 2 | 2 | 100 Ohm | ±2% | ||||||
| Orange | 3 | 3 | 1 K Ohm | |||||||
| Yellow | 4 | 4 | 10 K Ohm | ±5% | ||||||
| Green | 5 | 5 | 100 K Ohm | ±0.5% | ||||||
| Blue | 6 | 6 | 1 M Ohm | ±0.25% | ||||||
| Violet | 7 | 7 | 10 M Ohm | ±0.1% | ||||||
| Gray | 8 | 8 | 100 M Ohm | ±0.05% | ||||||
| White | 9 | 9 | ||||||||
| Gold | 0.1 Ohm | ±5% | ||||||||
| Silver | 0.01 Ohm | ±10% | ||||||||
| None | ±20% | |||||||||
Note: This Page deals with standard through hole 4 band resistors.
Note:Resistor with 5 or more color bands are generally precision resistor of some type
High tolerance resistors may have 3 bands for significant figures rather than 2, or an additional band indicating temperature coefficient,
military grade resistors may have a 5th band which indicates reliability.
Note: To Determine Surface Mount Resistor Values
Most surface mount resistors conform to a 3-digit or 4-digit code with many variations and more all the time.
The most common 3-digit SMD resistor the first 2 numbers represent the first 2 numbers in the answer. The third digit is the number of 0 you add after the first two digits.
For example: 223 is 22 000. Or 22,000 ohms. Or 220k.
222 = 22 00 = 2,200 = 2k2
473 = 47 000 = 47,000 = 47k
105 = 10 00000 = 1,000,000 = 1M = one million ohms
For resistors less than 100 ohms the third number is 0: 100, 220, 330. example 22 and NO zero's = 22 ohms.
there are some smd resistors with only two numbers 10, 22 and 33 = 10,22,33 ohms.
For more Info serch Internet for. "SMD resistor codes"