2.2 Ω resistor colour code
Four bands: Red · Red · Gold · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
2.2 Ω
2.2 ohms
Real range at ±5%
2.09 Ω – 2.31 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 | 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 | 1.5 A | 4.95 W | no standard part — needs a power resistor or a heatsink |
| 5 V | 2.27 A | 11.4 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 5.45 A | 65.5 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 10.9 A | 262 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
119
139th most of 1,465 values
In stock
8,573
across 4 of them
Cheapest at 100
$0.0022
each
Tolerances sold
±0.1% to ±10%
6 grades in all
Packages: 1210, 0805, 1206, 0402, 0603, 2010, 1225, 1020. Ratings: 30mW to 35W.
What ten of them actually cost
The price everyone quotes is the reel price. If you want ten, you cannot buy the reel — and the real figure is usually several times higher per piece.
Ten pieces
$1.95
$0.20 each · Cut Tape (CT) · minimum order 1
The reel price
$0.066
each, but only from 50,000 pieces up
Sitting in stock
265,391
across 5 part numbers
Per piece, ten costs 3.0× the reel price. That gap is why a handful of resistors never costs what the headline price suggests.
Stocked in ±1% and ±5%, rated 3/4 W to 100 W.
Cheapest part you can buy ten of: CRCW12062R20FKEAHP by Vishay Dale — see it at Digi-Key.
Assembly stock from the JLCPCB library, read 2026-09-24. Retail prices and stock from Digi-Key, read 2026-09-24. Prices move — check the product page before ordering. That is what a board house will place for you — not everything a distributor sells.
The same value, marked differently
Five bands
RedRedBlackGoldBrown
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 2.2 Ω — which is why measuring beats reading when it matters.
- 2 Ω1.9 Ω–2.1 Ω
- 2.1 Ω2.079 Ω–2.121 Ω
- 2.15 Ω2.1285 Ω–2.1715 Ω
- 2.21 Ω2.1879 Ω–2.2321 Ω
- 2.26 Ω2.2374 Ω–2.2826 Ω
- 2.32 Ω2.2968 Ω–2.3432 Ω
- 2.4 Ω2.28 Ω–2.52 Ω
If you do not have one
Standard values that land within 1% of 2.2 Ω when combined.