PCB Thermal Relief Calculator
Calculate thermal relief pad dimensions for PCB design including spoke width, gap angle, thermal resistance, copper coverage percentage, and annular ring validation for optimal soldering and heat dissipation.
How to Use PCB Thermal Relief Calculator
Enter pad diameter, drill diameter, number of spokes, spoke width, and copper thickness. Click Calculate to get thermal relief geometry, thermal resistance estimates, and design validation notes.
Step-by-Step Instructions
- Enter pad diameter and drill diameter in mil
- Set number of spokes and spoke width
- Enter copper thickness in oz
- Click Calculate Thermal Relief and review results
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