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Xinyuan-LilyGO / LilyGo-T-Relay

MIT License
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What is the maximum current rating for the relay ? #3

Closed X-Ryl669 closed 2 years ago

X-Ryl669 commented 2 years ago

I see you have mounted 10A relay. Are the screw terminal block and PCB trace matched for 10A ?

LilyGO commented 2 years ago

Yes. You can refer to the parameters of the relay

X-Ryl669 commented 2 years ago

The trace width seems like they are 3.8mm on the bottom layer but 7.6mm is required to pass 10A on a 1oz PCB (unless there is a trace going under the relay themselves on the top layer too). Is the PCB copper layer made of 2oz ? Or is there a trace on the relay pin to the screw terminal block pin on the top layer too ?

LilyGO commented 2 years ago

Yes, it is not recommended to exceed the limit value.

SublimeMudTime commented 2 years ago

It almost looks like there are traces for the relay on the top and bottom when examining my board. And 2 X 3.8 = 7.6 so it seems ok...

X-Ryl669 commented 2 years ago

Thanks! I've received mine recently and indeed, there are traces on both side so it's ok.