资 源 简 介
Trace Carrying Capacityper mil std 275
Temp Rise
10 C
20 C
30 C
Copper
1/2 oz.
1 oz.
2 oz.
1/2 oz.
1 oz.
2 oz.
1/2 oz.
1 oz.
2 oz.
Trace Width
Maximum Current Amps
.010
.5
1.0
1.4
0.6
1.2
1.6
.7
1.5
2.2
.015
.7
1.2
1.6
0.8
1.3
2.4
1.0
1.6
3.0
.020
.7
1.3
2.1
1.0
1.7
3.0
1.2
2.4
3.6
.025
.9
1.7
2.5
1.2
2.2
3.3
1.5
2.8
4.0
.030
1.1
1.9
3.0
1.4
2.5
4.0
1.7
3.2
5.0
.050
1.5
2.6
4.0
2.0
3.6
6.0
2.6
4.4
7.3
.075
2.0
3.5
5.7
2.8
4.5
7.8
3.5
6.0
10.0
.100
2.6
4.2
6.9
3.5
6.0
9.9
4.3
7.5
12.5
.200
4.2
7.0
11.5
6.0
10.0
11.0
7.5
13.0
20.5
.250
5.0
8.3
12.3
7.2
12.3
20.0
9.0
15.0
24.5
K & F Electronics, Inc.33041 Groesbeck HwyFraser, MI. 48026-1514Phone: 586.294.8720Fax: 586.294.5999circuits@ix.netcom.com
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举例说，线宽0.025英寸，采用2 oz.盎斯的铜，而允许温升30度，那查表可知， 最大安全电流是 4.0A 。
1 oz.铜即35微米厚，2 oz.70微米, 类推
