電阻色環表

The standard resistor color code table

標準電阻色碼及其它代號表示法參考資料
The standard resistor color code table:
Color	1st digit	2nd digit	3rd digit*	Multiplier	Tolerance	Temp. Coef.	Fail Rate
Black	0	0	0	×10⁰
Brown	1	1	1	×10¹	±1% (F)	100 ppm/K	1%
Red	2	2	2	×10²	±2% (G)	50 ppm/K	0.10%
Orange	3	3	3	×10³		15 ppm/K	0.01%
Yellow	4	4	4	×10⁴		25 ppm/K	0.00%
Green	5	5	5	×10⁵	±0.5% (D)
Blue	6	6	6	×10⁶	±0.25%(C)
Violet	7	7	7	×10⁷	±0.1% (B)
Gray	8	8	8	×10⁸	±0.05% (A)
White	9	9	9	×10⁹
Gold				×0.1	±5% (J)
Silver				×0.01	±10% (K)
None					±20% (M)
* 3rd digit - only for 5-band resistors

Standard resistance values
Example (E24) of ± 5%			3 Digits	Example (E96) ±1%			4 Digits
(1)	9Ω1 = 9.1 x 10^-1		919	(1)	9Ω1 = 910 x 10^-1		9108
(2)	10Ω = 10 x 10⁰		100	(2)	10Ω1 = 101 x 10⁰		1009
(3)	220Ω = 22 x 10¹		221	(3)	221Ω = 221 x 10¹		2210
(4)	3.3KΩ = 33 x 10²		331	(4)	3.32KΩ = 332 x 10²		3321
(5)	47KΩ = 47 x 10³		473	(5)	47K5Ω = 475 x 10³		4752
(6)	510KΩ = 51 x 10⁴		514	(6)	517KΩ = 517 x 10⁴		5173
(7)	6M2Ω = 62 x 10⁵		625	(7)	6M26Ω = 626 x 10⁵		6264

According Code
Tolerance		Resistance E24 (Ω)		Resistance E96 (Ω)		T.C.R ppm/℃
A:	±0.01%	m5 = R0005		m5 = R0005		A:	±5ppm
B:	±0.1%	5m = R005		5m = R005		B:	±10ppm
C:	±0.25%	50m = R05		50m = R05		C:	±15ppm
D:	±0.5%	100m = R10		100m = R10		D:	±25ppm
F:	±1%	1000m = 1R0		1000m = 1R0		E:	±50ppm
G:	±2%	1R = 1R00		1R = 1R00		F:	±75ppm
H:	±3%	10R = 10R0		10R = 10R0		G:	±100ppm
J:	±5%	100R = 101		100R = 1000		H:	±200ppm
K:	±10%	1K = 102		1K = 1001		I:	±300ppm
L:	±30%	10K = 103		10K = 1002		J:	±400ppm
M:	±20%	100K = 104		100K = 1003		K:	±500ppm
N:	±50%	1M = 105		1M = 1004		L:	±600ppm
Z:	+80-20%	10M = 106		10M = 1005		Z:	>1000ppm