PCB Trace Široký kalkulačka

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PCB Trace Width Calculator

IPC-2221 standard trace width for current carrying capacity

Based on IPC-2221 standard. Internal traces = inside PCB layers, External = top/bottom layers.

Required Trace Width (IPC-2221)

External Layer

11.9 mil

0.302 mm

Internal Layer

30.9 mil

0.786 mm

Parameters

Copper thickness: 1.37 mil (34.8 μm)

Cross-section area (ext): 16.30 sq mil

Cross-section area (int): 42.39 sq mil

Add 10–20% safety margin for production variability. Vias and thermal relays may require additional width.

Tool Information

Category
🔧 Electronics & Arduino
Type
Processed in browser
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