220 Ω resistor colour code
Four bands: Red · Red · Brown · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
220 Ω
220 ohms
Real range at ±5%
209 Ω – 231 Ω
A gold band allows this much drift.
Series
E6
Held in almost every parts drawer.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Red | 1st digit — 2 |
| 2 | Red | 2nd digit — 2 |
| 3 | Brown | Multiplier — ×10 |
| 4 | Gold | Tolerance — ±5% |
How much it can take
Current and dissipation across the resistor, and the package you need. The suggested rating keeps a factor of two in hand, which is what anyone building a board actually does.
| Across it | Current | Dissipated | Package to pick |
|---|---|---|---|
| 3.3 V | 15 mA | 49.5 mW | 1/8 W |
| 5 V | 22.7 mA | 114 mW | 1/4 W |
| 12 V | 54.5 mA | 655 mW | 2 W |
| 24 V | 109 mA | 2.62 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
243
7th most of 1,465 values
In stock
15,571
across 7 of them
Cheapest at 100
$0.0024
each
Tolerances sold
±0.01% to ±10%
10 grades in all
Packages: 0603, 0805, 1206, 0402, 1210, 2010, 0201, 2512. Ratings: 30mW to 25W.
Assembly stock from the JLCPCB library, read 2026-09-24. That is what a board house will place for you — not everything a distributor sells.
The same value, marked differently
Five bands
RedRedBlackBrownBrown
Three significant digits and a ±1% band.
Values that can overlap this one
At ±5% the tolerance bands of neighbouring values run into each other. A part sold as one of these could measure the same as a 220 Ω — which is why measuring beats reading when it matters.
- 200 Ω190 Ω–210 Ω
- 210 Ω207.9 Ω–212.1 Ω
- 215 Ω212.85 Ω–217.15 Ω
- 221 Ω218.79 Ω–223.21 Ω
- 226 Ω223.74 Ω–228.26 Ω
- 232 Ω229.68 Ω–234.32 Ω
- 240 Ω228 Ω–252 Ω
If you do not have one
Standard values that land within 1% of 220 Ω when combined.