發表日期 2014-07-06T23:48:17+08:00
生産工廠為瞭使用的需要,生産瞭很多阻值的電阻器。為瞭方便生産和使用,國標規字瞭一係列阻值作為産品的標準,即標稱阻值係列。
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在電路設計中,需要根據電路要求選用不同等級允許偏差的電阻器,這就要在不同係列中尋找電阻器。同時,根據電路設計中計算的結果得到電阻值後,也需要在不同係列中尋找電阻器,因為有些阻值隻在特定的係列中纔齣現。 |
E6阻值公差錶( ± 2% ) | |||||||||||
10
|
15
|
22
|
33
|
47
|
68
|
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E12阻值公差錶( ± 10% ) | |||||||||||
10
|
12
|
15
|
18
|
22
|
27
|
33
|
39
|
47
|
56
|
68
|
82
|
E24阻值公差錶( ± 2% 、 ± 5% 、 ± 10% ) | |||||||||||
10
|
11
|
12
|
13
|
15
|
16
|
18
|
20
|
22
|
24
|
27
|
30
|
33
|
36
|
39
|
43
|
47
|
51
|
56
|
62
|
68
|
75
|
82
|
91
|
E48阻值公差錶( ± 2% ) | |||||||||||
1.00
|
1.05
|
1.10
|
1.15
|
1.21
|
1.27
|
1.33
|
1.40
|
1.47
|
1.54
|
1.62
|
1.69
|
1.78
|
1.87
|
1.96
|
2.05
|
2.15
|
2.26
|
2.37
|
2.49
|
2.61
|
2.74
|
2.87
|
3.01
|
3.16
|
3.32
|
3.48
|
3.65
|
3.83
|
4.02
|
4.22
|
4.42
|
4.64
|
4.87
|
5.11
|
5.36
|
5.62
|
5.9
|
6.19
|
6.49
|
6.81
|
7.15
|
7.50
|
7.87
|
8.25
|
8.66
|
9.09
|
9.53
|
E96阻值公差錶( ± 1% ) | |||||||||||
10.0
|
10.2
|
10.5
|
10.7
|
11.0
|
11.3
|
11.5
|
11.8
|
12.1
|
12.4
|
12.7
|
13.0
|
13.3
|
13.7
|
14.0
|
14.3
|
14.7
|
15.0
|
15.4
|
15.8
|
16.2
|
16.5
|
16.9
|
17.4
|
17.8
|
18.2
|
18.7
|
19.1
|
19.6
|
20.0
|
20.5
|
21.0
|
21.5
|
22.1
|
22.6
|
23.2
|
23.7
|
24.3
|
24.9
|
25.5
|
26.1
|
26.7
|
27.4
|
28.0
|
28.7
|
29.4
|
30.1
|
30.9
|
31.6
|
32.4
|
33.2
|
34.0
|
34.8
|
35.7
|
36.5
|
37.4
|
38.3
|
39.2
|
40.2
|
41.2
|
42.2
|
43.2
|
44.2
|
45.3
|
46.4
|
47.5
|
48.7
|
49.9
|
51.1
|
52.3
|
53.6
|
54.9
|
56.2
|
57.6
|
59.0
|
60.4
|
61.9
|
63.4
|
64.9
|
66.5
|
68.1
|
69.8
|
71.5
|
73.2
|
75.0
|
76.8
|
78.7
|
80.6
|
82.5
|
84.5
|
86.6
|
88.7
|
90.9
|
93.1
|
95.3
|
97.6
|
E192阻值公差錶( ± 0.1% 、 ± 0.25% 、 ± 0.5% ) | |||||||||||
10.0
|
10.1
|
10.2
|
10.4
|
10.5
|
10.6
|
10.7
|
10.9
|
11.0
|
11.1
|
11.3
|
11.4
|
11.5
|
11.7
|
11.8
|
12.0
|
12.1
|
12.3
|
12.4
|
12.6
|
12.7
|
12.9
|
13.0
|
13.2
|
13.3
|
13.5
|
13.7
|
13.8
|
14.0
|
14.2
|
14.36
|
14.5
|
14.37
|
14.9
|
15.0
|
15.2
|
15.4
|
15.6
|
15.8
|
16.0
|
16.2
|
16.4
|
16.5
|
16.7
|
16.9
|
17.2
|
17.4
|
17.6
|
17.8
|
18.0
|
18.2
|
18.4
|
18.7
|
18.9
|
19.1
|
19.3
|
19.6
|
19.8
|
20.0
|
20.3
|
20.5
|
20.8
|
21.0
|
21.3
|
21.5
|
21.8
|
22.1
|
22.3
|
22.6
|
22.9
|
23.2
|
23.4
|
23.7
|
24.0
|
24.3
|
24.6
|
24.9
|
25.2
|
25.5
|
25.8
|
26.
|
26.4
|
26.7
|
27.1
|
27.4
|
27.7
|
28.0
|
28.4
|
28.7
|
29.1
|
29.4
|
29.8
|
30.1
|
30.5
|
30.9
|
31.2
|
31.6
|
32.0
|
32.4
|
32.8
|
33.2
|
33.6
|
34
|
34.4
|
34.8
|
35.2
|
35.7
|
36.1
|
36.5
|
37.0
|
37.4
|
37.9
|
38.3
|
38.8
|
39.2
|
37.7
|
40.2
|
40.7
|
41.2
|
41.7
|
42.2
|
42.7
|
43.2
|
43.7
|
44.2
|
44.8
|
45.3
|
45.9
|
46.4
|
47.0
|
47.5
|
48.1
|
48.7
|
79.3
|
49.9
|
50.5
|
51.1
|
51.7
|
52.3
|
53.0
|
53.6
|
54.2
|
54.9
|
55.6
|
56.2
|
56.9
|
57.6
|
58.3
|
59.0
|
59.7
|
60.4
|
61.2
|
61.9
|
62.6
|
63.4
|
64.2
|
64.9
|
65.7
|
66.5
|
67.3
|
68.1
|
69.0
|
69.8
|
70.6
|
71.5
|
72.3
|
73.2
|
74.1
|
75.0
|
75.9
|
76.8
|
77.7
|
78.7
|
79.6
|
80.6
|
81.6
|
82.5
|
832.5
|
84.5
|
85.6
|
86.6
|
87.6
|
88.7
|
89.8
|
90.9
|
92.0
|
93.1
|
94.2
|
95.3
|
96.5
|
97.6
|
98.8
|
從上述可以看齣E12係列中找不到1.1*10n 電阻器,隻能在E24係列中找到它。 錶中各數 *10n可得到不同的電阻值。
例如:1.1*10n(n=3) 為1.1kΩ 電阻器。n是正整數或負整數。1*10為10Ω電阻器 |