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FR4 dielectric breakdown voltage

JohnsonMiller , 12-24-2018, 11:07 AM
Hi Guys,

I am interested in getting some number about break-down voltage in FR4, should we need to worry about 100V? can it cause break-down?

Paul van Avesaath , 12-26-2018, 01:05 PM
Nope! No nead to worries about breakdown there.. Used it plenty of time for 220v. But keep large space between AC pairs and DC..
robertferanec , 12-28-2018, 03:57 AM
FR4 is often used in all the kind of electronics - including 230V circuits. PS: Saturn PCB can help you to answer more questions (the software is free):

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