It's actually quite amazing how much current that a typical PCB trace can handle.

For 2oz copper (typical), the following table shows the current carrying capability for various trace thicknesses:

Trace Width ---------- Current
0.025" --------------- 3.3 amps
0.050" --------------- 6.0 amps
0.10" ---------------- 9.9 amps
0.20" ---------------- 11.0 amps

It must have had much more current for it to blow as show in the pics.

Just for info . . . oops . . the first two line widths were mis-typed . . .

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Regards . . . . JimF
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'94 S500 Cpe

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