2.2k ohm Resistor color code- Overview
The 2.2k ohm Resistor color code for 4-band resistor is as shown in the image below:
2.2 k ohm resistor color code is:
[ Red, Red, Red, Gold ]
| Band | Color | Value |
|---|---|---|
| 1st Red |  | 2 |
| 2nd Red | | 2 |
| 3rd Red | | 100 |
| 4th gold |  | 5% |
| 2.2k±5% Ω |
2.2k ohm resistor color code for 4-band is calculated as:
- (1st digit) = Red = 2
- (2nd digit) = Red = 2
- (multiplier) = Red = 2 = 10^2 = 100
- (tolerance) = Gold= ±5%
∴ 22×100±5% –> 2.2k ohms –> 2200 Ω
∴ the real value of 2.2k ohm resistor is between 2090 Ω to 2310 Ω
Description: From the resistor color code table we need to find the color code of resistor with respect to its decimal value of the each band counted from left to right.
Thus, for 2.2k ohm resistor, 1st digit is ‘ 2 ‘, ∴ look for color in a chart with value 2, then it’s your 1st color(say red).
The next 2nd digit is ‘ 2 ‘, ∴ look for color in a chart with value 2, then it’s your 2nd color (say red). Next 3rd digit ‘100’ (but value 10^2 = 100) is multiplier ‘ 2 ‘, ∴ look for color in a chart with value 2, thenit’s your 3rd color band (say red).
- The last bands in 4/5 th bands resistors shows the tolerance value of the resistor. Here, the Gold indicates a 5% tolerance value. For Silver, its values is 10%, and Brown it is value at 1% tolerance. If the 4th band is absent then it is taken as 20% tolerance.
Also check color code of 120 ohm resistor
