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PCB Trace Current Calculator
Calculate maximum current capacity of PCB traces
About PCB Trace Current Capacity
The current carrying capacity of PCB traces depends on trace width, thickness, ambient temperature, and temperature rise. This calculator helps determine the maximum safe current for your PCB traces to prevent overheating and ensure reliable operation.
PCB Trace Current Design Tips
- Temperature Rise: Lower temperature rise = higher current capacity
- Trace Width: Wider traces can carry more current
- Copper Weight: Thicker copper = higher current capacity
- Thermal Management: Consider heat dissipation and airflow
- Safety Margin: Use 80% of calculated capacity for safety
- Multiple Traces: Parallel traces can share current load