56 Ω resistor colour code
Four bands: Green · Blue · Black · Gold. The first two give the digits, the third multiplies, the fourth states how far off the real part may be.
Nominal
56 Ω
56 ohms
Real range at ±5%
53.2 Ω – 58.8 Ω
A gold band allows this much drift.
Series
E12
Held in almost every parts drawer.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Green | 1st digit — 5 |
| 2 | Blue | 2nd digit — 6 |
| 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 | 58.9 mA | 194 mW | 1/2 W |
| 5 V | 89.3 mA | 446 mW | 1 W |
| 12 V | 214 mA | 2.57 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 429 mA | 10.3 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
170
103rd most of 1,465 values
In stock
0
across 0 of them
Cheapest at 100
$0.0013
each
Tolerances sold
±0.01% to ±10%
8 grades in all
Packages: 1206, 0805, 0603, 0402, 1210, 2512, 2010, 0201. 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
$0.19
$0.019 each · Cut Tape (CT) · minimum order 1
The reel price
$0.00196
each, but only from 100,000 pieces up
Sitting in stock
4,439,997
across 15 part numbers
Per piece, ten costs 9.7× 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 16 W.
Cheapest part you can buy ten of: RC0402JR-0756RL by YAGEO — 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
GreenBlueBlackGoldBrown
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 56 Ω — which is why measuring beats reading when it matters.
- 51 Ω48.45 Ω–53.55 Ω
- 53.6 Ω53.064 Ω–54.136 Ω
- 54.9 Ω54.351 Ω–55.449 Ω
- 56.2 Ω55.638 Ω–56.762 Ω
- 57.6 Ω57.024 Ω–58.176 Ω
- 59 Ω58.41 Ω–59.59 Ω
If you do not have one
Standard values that land within 1% of 56 Ω when combined.