PCB 线宽与电流的关系

线宽/铜箔厚度70µm(2 oz)50µm(1.5 oz)35µm(1 oz)
2.50mm(98mi1)6.00A5.10A4.50A
2.00mm(78mil)5.10A4.30A4.00A
1.50mm(59mi1)4.20A3.50A3.20A
1.20mm(47mi1)3.60A3.00A2.70A
1.00mm(40mi1)3.20A2.60A2.30A
0.80mm(32mi1)2.80A2.40A2.00A
0.60mm(24m11)2.30A1.90A1.60A
0.50mm(20mil)2.00A1.70A1.35A
0.40mm(16mil)1.70A1.35A1.10A
0.30mm(12mil)1.30A1.10A0.80A
0.20mm(8mi1)0.90A0.70A0.55A
0.15mm(6mil)0.70A0.50A0.20A

一般来说,需要多预留 15% 的余量。

参考与致谢#



文章作者:Power Lin
原文地址:https://wiki-power.com
版权声明:文章采用 CC BY-NC-SA 4.0 协议,转载请注明出处。

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