33 Ω resistor colour code
Four bands: Orange · Orange · Black · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
33 Ω
33 ohms
Real range at ±5%
31.35 Ω – 34.65 Ω
A gold band allows this much drift.
Series
E6
Held in almost every parts drawer.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Orange | 1st digit — 3 |
| 2 | Orange | 2nd digit — 3 |
| 3 | Black | Multiplier — ×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 | 100 mA | 330 mW | 1 W |
| 5 V | 152 mA | 758 mW | 2 W |
| 12 V | 364 mA | 4.36 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 727 mA | 17.5 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
175
90th most of 1,465 values
In stock
5,234
across 9 of them
Cheapest at 100
$0.0004
each
Tolerances sold
±0.01% to ±10%
8 grades in all
Packages: 1206, 0805, 0603, 1210, 0402, 2512, 0612, 2010. 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
$0.15
$0.015 each · Digi-Reel® · minimum order 1
The reel price
$0.00134
each, but only from 100,000 pieces up
Sitting in stock
15,654,782
across 28 part numbers
Per piece, ten costs 11.2× the reel price. That gap is why a handful of resistors never costs what the headline price suggests.
Stocked in ±1% and ±5%, rated 1/20 W to 1.5 W.
Cheapest part you can buy ten of: CR0402-FX-33R0GLF by Bourns 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
OrangeOrangeBlackBlackBrown
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 33 Ω — which is why measuring beats reading when it matters.
- 30 Ω28.5 Ω–31.5 Ω
- 31.6 Ω31.284 Ω–31.916 Ω
- 32.4 Ω32.076 Ω–32.724 Ω
- 33.2 Ω32.868 Ω–33.532 Ω
- 34 Ω33.66 Ω–34.34 Ω
- 34.8 Ω34.452 Ω–35.148 Ω
- 36 Ω34.2 Ω–37.8 Ω
If you do not have one
Standard values that land within 1% of 33 Ω when combined.