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