White White Violet Gold — 990 MΩ
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
990 MΩ
Range at ±5%
940.5 MΩ – 1.0395 GΩ
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 | White | 1st digit — 9 |
| 2 | White | 2nd digit — 9 |
| 3 | Violet | Multiplier — ×10M |
| 4 | Gold | Tolerance — ±5% |
In a circuit
Across 5 V
0.00505 µA · 0.0253 µW · 1/8 W part
Across 12 V
0.0121 µA · 0.145 µW · 1/8 W part
Surface-mount marking for the same value: 997.
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.