390 Ω resistor colour code
Four bands: Orange · White · Brown · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
390 Ω
390 ohms
Real range at ±5%
370.5 Ω – 409.5 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 | Brown | Multiplier — ×10 |
| 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 | 8.46 mA | 27.9 mW | 1/8 W |
| 5 V | 12.8 mA | 64.1 mW | 1/4 W |
| 12 V | 30.8 mA | 369 mW | 1 W |
| 24 V | 61.5 mA | 1.48 W | 5 W |
What you can actually get
Parts made
196
40th most of 1,465 values
In stock
5,380
across 4 of them
Cheapest at 100
$0.0034
each
Tolerances sold
±0.01% to ±10%
9 grades in all
Packages: 0805, 1206, 0402, 0603, 1210, 2512, 2010, 0201. 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
$0.18
$0.018 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00171
each, but only from 100,000 pieces up
Sitting in stock
4,969,028
across 16 part numbers
Per piece, ten costs 10.5× 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 1/2 W.
Cheapest part you can buy ten of: RMCF0402JT390R 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
OrangeWhiteBlackBrownBrown
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 390 Ω — which is why measuring beats reading when it matters.
- 360 Ω342 Ω–378 Ω
- 374 Ω370.26 Ω–377.74 Ω
- 383 Ω379.17 Ω–386.83 Ω
- 392 Ω388.08 Ω–395.92 Ω
- 402 Ω397.98 Ω–406.02 Ω
- 412 Ω407.88 Ω–416.12 Ω
- 430 Ω408.5 Ω–451.5 Ω
If you do not have one
Standard values that land within 1% of 390 Ω when combined.