Thursday, July 1, 2010

Weekly Note 10W25: PCB heat loss related & enlarge the current capability

Image bellow is a footprint of a diode--TO-263AB.
The bigger pin's footprint was cut into small pieces because small
solder past is easier to be melt and control.
But this sacrificed the heat dispersion performance.


Just like print solder past on a pad, we can also print solder past on a
trace line to enlarge the current carry capability. Don't forget remove
the solder mask.

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