Calculating the Line Width on a Printed Circuit Board
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Calculating Trace Width on Printed Circuit Boards
Based on the formula in MIL-STD-275E,
this calculator determines the required pattern cross-sectional area and trace width for a given current.
A: Cross-sectional area [mm²]
k: Coefficient based on the layer (0.024 for inner layers, 0.048 for outer layers)
ΔT: Temperature rise [°C]
I: Current [A]
this calculator determines the required pattern cross-sectional area and trace width for a given current.
A: Cross-sectional area [mm²]
k: Coefficient based on the layer (0.024 for inner layers, 0.048 for outer layers)
ΔT: Temperature rise [°C]
I: Current [A]
| Inner-layer cross-sectional area | mm² |
| Outer-layer cross-sectional area | mm² |
| Inner-layer trace width | mm |
| Outer Layer Trace Width | mm |
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