Engineering Tables/Electronic colour codes
| Colour | Significant figures |
Multiplier | Tolerance | Temp. Coefficient (ppm/K) | ||
|---|---|---|---|---|---|---|
| Black | – | ×100 | – | 250 | U | |
| Brown | 1 | ×101 | ±1% | F | 100 | S |
| Red | 2 | ×102 | ±2% | G | 50 | R |
| Orange | 3 | ×103 | – | 15 | P | |
| Yellow | 4 | ×104 | – | 25 | Q | |
| Green | 5 | ×105 | ±0.5% | D | 20 | Z |
| Blue | 6 | ×106 | ±0.25% | C | 10 | Z |
| Violet | 7 | ×107 | ±0.1% | B | 5 | M |
| Gray | 8 | ×108 | ±0.05% | A | 1 | K |
| White | 9 | ×109 | – | – | ||
| Gold | – | ×10−1 | ±5% | J | – | |
| Silver | – | ×10−2 | ±10% | K | – | |
| None | – | – | ±20% | M | – | |
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