Yellow Red Violet Gold — 420 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
420 MΩ
Range at ±5%
399 MΩ – 441 MΩ
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 | Yellow | 1st digit — 4 |
| 2 | Red | 2nd digit — 2 |
| 3 | Violet | Multiplier — ×10M |
| 4 | Gold | Tolerance — ±5% |
In a circuit
Across 5 V
0.0119 µA · 0.0595 µW · 1/8 W part
Across 12 V
0.0286 µA · 0.343 µW · 1/8 W part
Surface-mount marking for the same value: 427.
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.