"Toolbox" and feedback to improve implementation
Design and manufacture of rigid printed circuit boards
Quizzed article REF: E3342 V2
"Toolbox" and feedback to improve implementation
Design and manufacture of rigid printed circuit boards

Author : Eric CADALEN

Publication date: November 10, 2013, Review date: January 5, 2021 | Lire en français

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5. "Toolbox" and feedback to improve implementation

5.1 DC routing

From an electrical point of view, the minimum track cross-section is defined by the maximum current required and by the maximum permissible temperature rise relative to the ambient temperature.

I = k × ΔT 0.44 × A 0.725 (source IPC-2221A)

with :

I
 : 
current (in amperes),
ΔT
 : 
difference between ambient temperature and maximum permissible assembly temperature (in degrees),
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