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PCB Trace Width Calculator
Calculate required trace width for current capacity and impedance
About PCB Trace Width Design
PCB trace width is critical for current carrying capacity, impedance control, and manufacturability. This calculator helps determine the optimal trace width based on current requirements, temperature rise, and impedance targets for reliable PCB design.
PCB Trace Width Design Tips
- Current Capacity: Wider traces can carry more current with less temperature rise
- Impedance Control: Trace width affects characteristic impedance for high-speed signals
- Manufacturing: Consider minimum trace width capabilities of your PCB manufacturer
- Thermal Management: Higher temperature rise allows narrower traces but increases thermal stress
- Copper Weight: Thicker copper reduces required width for same current capacity
- Safety Margin: Use 80% of calculated capacity for reliability