1.2 Ω resistor colour code
Four bands: Brown · Red · Gold · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
1.2 Ω
1.2 ohms
Real range at ±5%
1.14 Ω – 1.26 Ω
A gold band allows this much drift.
Series
E12
Held in almost every parts drawer.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Brown | 1st digit — 1 |
| 2 | Red | 2nd digit — 2 |
| 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 | 2.75 A | 9.07 W | no standard part — needs a power resistor or a heatsink |
| 5 V | 4.17 A | 20.8 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 10 A | 120 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 20 A | 480 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
107
166th most of 1,465 values
In stock
6,655
across 2 of them
Cheapest at 100
$0.0015
each
Tolerances sold
±1% to ±10%
4 grades in all
Packages: 0603, 1210, 1206, 0805, 0402, 2512, 0204, 1225. 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
BrownRedBlackGoldBrown
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 1.2 Ω — which is why measuring beats reading when it matters.
- 1.1 Ω1.045 Ω–1.155 Ω
- 1.13 Ω1.1187 Ω–1.1413 Ω
- 1.15 Ω1.1385 Ω–1.1615 Ω
- 1.18 Ω1.1682 Ω–1.1918 Ω
- 1.21 Ω1.1979 Ω–1.2221 Ω
- 1.24 Ω1.2276 Ω–1.2524 Ω
- 1.27 Ω1.2573 Ω–1.2827 Ω
- 1.3 Ω1.235 Ω–1.365 Ω
If you do not have one
Standard values that land within 1% of 1.2 Ω when combined.