Trace Carrying Capacity per Mil. Standard 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
0.010 inch .5 1.0 1.4 0.6 1.2 1.6 .7 1.5 2.2
0.015 inch .7 1.2 1.6 0.8 1.3 2.4 1.0 1.6 3.0
0.020 inch .7 1.3 2.1 1.0 1.7 3.0 1.2 2.4 3.6
0.025 inch .9 1.7 2.5 1.2 2.2 3.3 1.5 2.8 4.0
0.030 inch 1.1 1.9 3.0 1.4 2.5 4.0 1.7 3.2 5.0
0.050 inch 1.5 2.6 4.0 2.0 3.6 6.0 2.6 4.4 7.3
0.075 inch 2.0 3.5 5.7 2.8 4.5 7.8 3.5 6.0 10.0
0.100 inch 2.6 4.2 6.9 3.5 6.0 9.9 4.3 7.5 12.5
0.200 inch 4.2 7.0 11.5 6.0 10.0 16.0 7.5 13.0 20.5
0.250 inch 5.0 8.3 12.3 7.2 12.3 20.0 9.0 15.0 24.5