Appendix(66KB)

Fixed Resistors
Appendix
Standard for Resistance Value, Resistance Tolerance and Color Code
■ Basis Standard
IEC Publication 60062: Marking codes for resistors and capacitors.
IEC Publication 60063: Preferred number series for resistors and capacitors.
JIS C 5062: Marking codes for resistors and capacitors.
JIS C 5063: Preferred number series for resistors and capacitors.
■ Resistance Values
The resistance values are notched by “Ratio” below in each series.
Resistance Tolerance
(Standard)
Series
Ratio
±20 %
6
±10 %
12
± 5 %
24
E48
± 2 %
48
E96
± 1 %
96
E6
E12
E24
Remarks
√10=1.46
√10=1.21
√10=1.10
√10=1.05
Please refer to standard resistance values
shown on this catalog.
√10=1.02
■ How to express the resistance value with a Panasonic part number.
The resistance value expressed in ohms is identified by a three digit number or a four digit number.
The last digit specifies the number of zeroes to follow.
The letter “R” shall be used as the decimal point for less than 10 ohm.
The examples of a three digit number
The examples of a four digit number
Resistance Code
Value in ohms
Resistance Code
Value in ohms
R56
5R6
100
271
102
273
104
275
106
107
0.56
5.6
10
270
1 k
27 k
100 k
2.7 M
10 M
100 M
R562
5R62
56R2
1000
2711
1002
2713
1004
2715
1006
0.562
5.62
56.2
100
2.71 k
10 k
271 k
1 M
27.1 M
100 M
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Fixed Resistors
Appendix
■ How to express the resistance tolerance with a Panasonic part number
The resistance tolerance is identified by a single letter in accordance with the following table and the code is placed just
before the resistance code in the following examples.
Tolerance Code
Tolerance
(%)
W
B
C
D
F
G
J
K
M
±0.05
±0.1
±0.25
±0.5
±1
±2
±5
±10
±20
Examples
W1001 :
B1001 :
C1001 :
D1001 :
F1001 :
G1001 :
J101 :
K101 :
M101 :
1000 Ω±0.05 %
1000 Ω±0.1 %
1000 Ω±0.25 %
1000 Ω±0.5 %
1000 Ω±1 %
1000 Ω±2 %
100 Ω±5 %
100 Ω±10 %
100 Ω±20 %
■ Color code indication for the resistance value and the tolerance
Fixed resistors whose resistance value and tolerance are indicated by color code follow the standard below.
Color code
Color
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Gold
Silver
None
First digit
Second digit
Third digit
Multiplier
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
1
10
2
10
3
10
4
10
5
10
6
10
7
10
–1
10
–2
10
Indication example
Color code of 5 color bands
When the standard resistance value follows E48 series or
96 series, color code of the resistors are indicated by five
color bands. Example below is 154 kΩ.
Resistance tolerance
%
Code
±1
±2
±0.05
F
G
W
±0.5
±0.25
±0.1
D
C
B
±5
±10
±20
J
K
M
Color code of 4 color bands
When the standard resistance value follows E6 series, 12
series or 24 series, color code of the resistors are indicated
by four color bands. Example below is 15 kΩ.
Example 1
Example 2
1st Color
2nd Color
3rd Color
4th Color
5th Color
1st Color
2nd Color
3rd Color
4th Color
Brown
(1)
Green
(5)
Yellow
(4)
Orange
(1000)
Brown
(±1 %)
Brown
(1)
Green
(5)
Orange
(1000)
Gold
(±5 %)
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01 Aug. 2012
Fixed Resistors
Appendix
■ Standard Resistance Values
E6
10
E12
10
E24
10
E48
100
E96
100
E6
E12
E24
22
22
22
E48
215
102
105
110
E6
E12
E24
47
47
47
E48
464
221
105
226
107
11
E96
215
475
226
487
232
110
237
E96
464
487
499
237
51
511
511
24
113
115
243
115
249
118
12
536
255
121
261
124
536
549
127
13
127
274
133
287
15
140
30
301
147
316
274
590
287
62
619
33
619
634
301
316
590
604
649
649
665
68
68
68
681
324
33
562
576
309
150
154
562
294
143
147
56
280
137
140
56
27
130
133
261
267
27
15
249
12
121
15
523
681
698
33
154
332
158
332
715
340
715
732
16
162
162
348
165
348
75
750
357
750
768
36
169
169
365
174
365
787
374
806
82
178
18
178
18
383
39
383
825
392
187
402
191
196
82
825
39
182
187
787
845
402
866
412
196
422
422
866
887
91
909
909
43
20
200
205
432
205
442
210
442
453
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931
953
953
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01 Aug. 2012
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