OK, so you think my "fat-blob-pads" design will be fine and enhance heat dissipation?
Also, the 50mil clearance I quoted earlier was the separation between the two power planes, but the separation between the actual exposed rectangular pads is 300mils (7.6 mm), which should be plenty.
Hi,
If this is what your final PCB around the SSR will look like;
Then I think with all the info you have and advice you will be fine.
I would put twice as much space between the input pins and the output pins copper.
It sounds like you are over thinking the situation.
You have used the available info, now go and do it, you will need to prototype it anyway.
Build the PCB assembly, turn irt ON, Load it up and with a DMM measure your volt drops around the PCB.
There is nothing better than real world testing.
Tom... 
PS. Is there a reason for using a PCB mounted SSR?
Haha yup, and that's the plan, I ordered all the parts already but I wanted some input on it before ordering
androidfanboy:
And you're right, I probably don't need a zero crossing relay, although the reason I chose it was because it's cheaper and it has that functionality, so I though "why not" lol.
Zero-crossing is good for a toaster oven, because it's mainly resistive heating elements.
Zero-crossing could be bad for e.g. a big transformer.
Leo..
OK thanks!
If the zero-crossing SSR costs $5.40 more than the non-zero-crossing one, which would you choose? Is the zero-crossing really worth the extra dollars?
