How to read 221
The leading digits form 22; the last digit gives a multiplier of 10. The resistance is 220 Ω.
The marking does not specify the power rating or guarantee a tolerance. Check the component datasheet and package.
Similar markings, different meanings
220 | 22 Ω |
|---|---|
221 | 220 Ω |
222 | 2.2 kΩ |
SMD and printed codes
| SMD, 3 digits | 221 |
|---|---|
| SMD, 4 digits | 2200 |