Electronics > Beginners
What are those "cuts" in the PCB?
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vmallet:
In the pictures of a SMPS of a Blu-Ray player below there are three "cuts" in the PCB under three components. 1 is under something that could be an opto-coupler (IC102), 2 and 3 are under capacitors (C111, C102). I have seen these before and I don't quite understand their function. I've tried to google around but I don't know how to describe these things and I only get literature about through-holes, mounting holes, vias, air gap layers... none of which is relevant. Would love some info so I could go learn about them.





Thanks!
thm_w:
http://blog.optimumdesign.com/clearance-and-creepage-rules-for-pcb-assembly
https://www.eevblog.com/forum/projects/pcb-slotscutouts-when/
vmallet:

--- Quote from: thm_w on October 18, 2019, 01:02:31 am ---http://blog.optimumdesign.com/clearance-and-creepage-rules-for-pcb-assembly
https://www.eevblog.com/forum/projects/pcb-slotscutouts-when/

--- End quote ---

Great thanks, exactly what I was looking for.
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