6.8 Ω resistor colour code
Four bands: Blue · Grey · Gold · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
6.8 Ω
6.8 ohms
Real range at ±5%
6.46 Ω – 7.14 Ω
A gold band allows this much drift.
Series
E6
Held in almost every parts drawer.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Blue | 1st digit — 6 |
| 2 | Grey | 2nd digit — 8 |
| 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 | 485 mA | 1.6 W | 5 W |
| 5 V | 735 mA | 3.68 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 1.76 A | 21.2 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 3.53 A | 84.7 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
9,983
across 3 of them
Cheapest at 100
$0.0022
each
Tolerances sold
±0.1% to ±10%
7 grades in all
Packages: 0603, 0402, 1206, 1210, 0805, 2010, 0207, 2512. Ratings: 30mW to 10W.
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
$0.26
$0.026 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00349
each, but only from 50,000 pieces up
Sitting in stock
763,475
across 2 part numbers
Per piece, ten costs 7.4× the reel price. That gap is why a handful of resistors never costs what the headline price suggests.
Stocked in ±1%, rated 1/10 W to 2 W.
Cheapest part you can buy ten of: RMCF0603FT6R80 by Stackpole Electronics Inc — 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
BlueGreyBlackGoldBrown
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 6.8 Ω — which is why measuring beats reading when it matters.
- 6.2 Ω5.89 Ω–6.51 Ω
- 6.49 Ω6.4251 Ω–6.5549 Ω
- 6.65 Ω6.5835 Ω–6.7165 Ω
- 6.81 Ω6.7419 Ω–6.8781 Ω
- 6.98 Ω6.9102 Ω–7.0498 Ω
- 7.15 Ω7.0785 Ω–7.2215 Ω
- 7.5 Ω7.125 Ω–7.875 Ω
If you do not have one
Standard values that land within 1% of 6.8 Ω when combined.