39 Ω resistor colour code
Four bands: Orange · White · Black · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
39 Ω
39 ohms
Real range at ±5%
37.05 Ω – 40.95 Ω
A gold band allows this much drift.
Series
E12
Held in almost every parts drawer.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Orange | 1st digit — 3 |
| 2 | White | 2nd digit — 9 |
| 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 | 84.6 mA | 279 mW | 1 W |
| 5 V | 128 mA | 641 mW | 2 W |
| 12 V | 308 mA | 3.69 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 615 mA | 14.8 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
188
58th most of 1,465 values
In stock
12,590
across 6 of them
Cheapest at 100
$0.0008
each
Tolerances sold
±0.1% to ±10%
7 grades in all
Packages: 0805, 1206, 0603, 0402, 1210, 2512, 0201, 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
$0.18
$0.018 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00161
each, but only from 100,000 pieces up
Sitting in stock
3,555,838
across 24 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 ±0.5% and ±1% and ±5%, rated 1/20 W to 1/2 W.
Cheapest part you can buy ten of: RMCF0402JT39R0 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
OrangeWhiteBlackBlackBrown
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 39 Ω — which is why measuring beats reading when it matters.
- 36 Ω34.2 Ω–37.8 Ω
- 37.4 Ω37.026 Ω–37.774 Ω
- 38.3 Ω37.917 Ω–38.683 Ω
- 39.2 Ω38.808 Ω–39.592 Ω
- 40.2 Ω39.798 Ω–40.602 Ω
- 41.2 Ω40.788 Ω–41.612 Ω
- 43 Ω40.85 Ω–45.15 Ω
If you do not have one
Standard values that land within 1% of 39 Ω when combined.