Join Date: Mar 2002
Location: Austin, TX, USA
One of the most important things to consider with diodes is the power dissipation factor. Most garden variety diodes are 1 watt. If you assume the diode drops 0.7V (it's probably 0.6v), then the power dissipation at 10 amps will be 7 watts. That will require a bigger diode that can be mounted to a heat sink.
It all depends on the rating of the diode and current through it. If you exceed the wattage rating, it's only a matter of time until it burns out. Just multiply your current load by 0.7 and see what you get.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI