3.4 Ω resistor colour code
Five bands: Orange · Yellow · Black · Silver · Brown. The first three give the digits — a precision value needs all three — then the multiplier, then how far off the real part may be.
Nominal
3.4 Ω
3.4 ohms
Real range at ±1%
3.366 Ω – 3.434 Ω
A brown band allows this much drift.
Series
E96
A 1% precision value. Five bands, not four.
Band by band
| Band | Colour | Meaning |
|---|---|---|
| 1 | Orange | 1st digit — 3 |
| 2 | Yellow | 2nd digit — 4 |
| 3 | Black | 3rd digit — 0 |
| 4 | Silver | Multiplier — ×0.01 |
| 5 | Brown | Tolerance — ±1% |
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 | 971 mA | 3.2 W | no standard part — needs a power resistor or a heatsink |
| 5 V | 1.47 A | 7.35 W | no standard part — needs a power resistor or a heatsink |
| 12 V | 3.53 A | 42.4 W | no standard part — needs a power resistor or a heatsink |
| 24 V | 7.06 A | 169 W | no standard part — needs a power resistor or a heatsink |
What you can actually get
Parts made
22
735th most of 1,465 values
In stock
0
across 0 of them
Cheapest at 100
$0.0078
each
Tolerances sold
±0.1% to ±1%
Packages: 0603, 1206, 0805, 1210, 2010, 0402, 2512, 0201. Ratings: 50mW to 1W.
Assembly stock from the JLCPCB library, read 2026-09-24. That is what a board house will place for you — not everything a distributor sells.
The same value, marked differently
Values that can overlap this one
At ±1% the tolerance bands of neighbouring values run into each other. A part sold as one of these could measure the same as a 3.4 Ω — which is why measuring beats reading when it matters.
If you do not have one
Standard values that land within 1% of 3.4 Ω when combined.