Engineering Tables/Electronic colour codes

ColourSignificantfiguresMultiplierToleranceTemp. 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 – Any temperature coefficient not assigned its own letter shall be marked "Z", and the coefficient found in other documentation. For more information, see EN 60062.