220 ohm resistor color code – Overview and tips
220 ohm resistor color code with 5% tolerance is as shown:
1) 220 Ohm Resistor color code:
Red, Red, Brown, Gold
| Band | Color | Value |
|---|---|---|
| 1st Red |  | 2 |
| 2nd Red | | 2 |
| 3rd Brown |  | 10 |
| 4th gold |  | +-5% |
| 1st digit 2 2nd digit 2 3rd multiplier: 10 | 220 Ohm tolerance: +-5% |
2) It is calculated as:
(link of calculating resistor by color code in detail)
1st band= Red= 2(1st digit)
2nd band= Red= 2(2nd digit)
3rd band= Brown= 10(multiplier)
4th band= Gold= ±5% (tolerance)
Therefore, 22×10±5% ==> 220Ω ==> 0.22kΩ
And tolerance considered as ==> 5%of220 ==>11Ω
Final assumed value of 220Ω resistor is between 209 to 231Ω
3) Resistor color code 220 Ohm 10% tolerance:
Red, Red, Brown, Silver
4) It is calculated as:
(link of calculating resistor by color code in detail)
1st band= Red= 2(1st digit)
2nd band= Red= 2(2nd digit)
3rd band= Brown= 10(multiplier)
4th band= Gold= ±10% (tolerance)
Therefore, 22×10±10% ==> 220Ω ==> 0.22kΩ
And tolerance considered as ==> 5%of 220 ==>22Ω
Final assumed value of 220Ω resistor is between 198 to 242Ω
5) Caution for 220 ohm resistor code:
If resistor contains Brown and Red color in bands then check it, because, red and brown appears to be very similar when it is placed in a circuit.
also check code of 330 ohm resistance
6) Other methods:
Use a DMM to take the value of resistor best method to do so. But digital multi-meter does not read proper values when a resistor is on PCB or connected to other components, in such situation color code is reliable
| R1 series R2 using 200Ω and 20Ω | 200Ω+20Ω=220Ω |
