1.1 Ω resistor colour code
Four bands: Brown · Brown · Gold · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
1.1 Ω
1.1 ohms
Real range at ±5%
1.045 Ω – 1.155 Ω
A gold band allows this much drift.
Series
E24
E24 only — stocked less often.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Brown | 1st digit — 1 |
| 2 | Brown | 2nd digit — 1 |
| 3 | Gold | Multiplier — ×0.1 |
| 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 | 3 A | 9.9 W | no standard part — needs a power resistor or a heatsink |
| 5 V | 4.55 A | 22.7 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 10.9 A | 131 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 21.8 A | 524 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
102
194th most of 1,465 values
In stock
5,000
across 1 of them
Cheapest at 100
$0.0015
each
Tolerances sold
±0.1% to ±5%
5 grades in all
Packages: 0805, 0603, 1206, 0402, 1210, 2512, 2010, 0204. Ratings: 50mW to 10W.
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
BrownBrownBlackSilverBrown
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 1.1 Ω — which is why measuring beats reading when it matters.
- 1 Ω0.95 Ω–1.05 Ω
- 1.05 Ω1.0395 Ω–1.0605 Ω
- 1.07 Ω1.0593 Ω–1.0807 Ω
- 1.13 Ω1.1187 Ω–1.1413 Ω
- 1.15 Ω1.1385 Ω–1.1615 Ω
- 1.2 Ω1.14 Ω–1.26 Ω
If you do not have one
Standard values that land within 1% of 1.1 Ω when combined.