PCB Trace Calculator
IPC Standard (Thermal) + Verified Fusing
1. Trace Width (Thermal)
Current (Amps)
Max Temp Rise (°C)
Copper Weight
0.5 oz (17.5µm)
1.0 oz (35µm)
2.0 oz (70µm)
3.0 oz (105µm)
Trace Layer
External (Air)
Internal
Nearby Copper Plane?
Calculates thermal sinking (IPC-2152 benefit)
Required Width:
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Voltage Drop:
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2. Time to Fuse (Short Circuit)
Verified Brooks Formula
Fault Current (Amps)
Trace Width (mils)
⇩ Copy from Calculator Above
Time to Melt:
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Max Safe Current (1 sec):
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