Blue Yellow Gold Gold — 6.4 Ω
Read left to right, starting from the end where the bands are grouped. The gold band is the tolerance and always sits alone at the far end.
Value
6.4 Ω
Range at ±5%
6.08 Ω – 6.72 Ω
Standard value
Non-standard
No E24 part carries this value — check you are reading from the right end.
What each band says
| Band | Colour | Meaning |
|---|---|---|
| 1 | Blue | 1st digit — 6 |
| 2 | Yellow | 2nd digit — 4 |
| 3 | Gold | Multiplier — ×0.1 |
| 4 | Gold | Tolerance — ±5% |
In a circuit
Across 5 V
781 mA · 3.91 W · part
Across 12 V
1.88 A · 22.5 W · part
Surface-mount marking for the same value: 6R4.
If you misread one band
Brown and red, or orange and red, are easy to confuse under a desk lamp. These are the codes one band away from this one.