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PCB载流能力取决于以下因素:线宽、铜箔厚度、容许温升
线宽\铜箔厚度 | 70um(2 oz) | 50um(1.5 oz) | 35um(1 oz) |
---|---|---|---|
2.50mm(98mil) | 6.00A | 5.10A | 4.50A |
2.00mm(78mil) | 5.10A | 4.30A | 4.00A |
1.50mm(59mil) | 4.20A | 3.50A | 3.20A |
1.20mm(47mil) | 3.60A | 3.00A | 2.70A |
1.00mm(40mil) | 3.20A | 2.60A | 2.30A |
0.80mm(32mil) | 3.80A | 2.40A | 2.00A |
0.60mm(24mil) | 2.30A | 1.90A | 1.60A |
0.40mm(16mil) | 1.70A | 1.35A | 1.10A |
0.30mm(12mil) | 1.30A | 1.10A | 0.80A |
0.20mm(8mil) | 0.90A | 0.70A | 0.55A |
0.15mm(6mil) | 0.70A | 0.50A | 0.20A |
oz既盎司,重量单位,1oz的铜厚指将1oz的铜均匀的铺在1inch(英寸)面积的厚度。(1oz约1.4mil或35um)
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