Electronics Forum | Wed Oct 27 08:46:20 EDT 2010 | adlsmt
We are having metal migration issues with SOT 223 and TO 220 parts runing at 500V DC. We are using no clean flux and suspect that is causing the problem. Does anyone have any experience with these levels of DC voltages or know of any consulting firm
Electronics Forum | Sun Oct 31 10:58:52 EDT 2010 | cobar
http://www.shanelo.co.za/Design,%20process%20and%20reliability.htm
Electronics Forum | Fri Jan 10 10:09:42 EST 2003 | mantis
Hi In selecting or substituting a capacitor for use, consideration must be given to (1) the value of capacitance desired and (2) the amount of voltage to be applied across the capacitor. If the voltage applied across the capacitor is t
Electronics Forum | Fri Jan 10 14:35:59 EST 2003 | russ
Thanks Genny, Mantis, Our line is back up and running! Russ
Electronics Forum | Fri Jan 10 09:30:55 EST 2003 | russ
Does anyone know what the voltage ratings on ceramic caps is related to? Would it be safe to use a 50V cap instead of 25V for .01uF X7R bypass/filter caps? Thanks Russ
Electronics Forum | Tue Jan 14 11:30:33 EST 2003 | jsherrow
You may find that the higher volatage rated parts are thicker. Same footpring but "taller". Usually not a problem unless the board is inserted into a mold. BTDT.
Electronics Forum | Fri Apr 19 15:52:31 EDT 2002 | davef
So, what is 'high voltage'? anywho? * We sort of use 10 kV as the starting point for 'high voltage'. * National Electrical Code defines a much lower starting point (300 or 600 V?),
Electronics Forum | Fri Jan 10 14:11:27 EST 2003 | genny
It's always safer to use a higher voltage cap than a lower voltage cap. It isn't a fuse... There is only one case where we dropped the voltage on a cap. We were using a tantalum cap that was rated to 16V, but had been built in the standard packagi
Electronics Forum | Thu Apr 18 16:55:39 EDT 2002 | davef
Yes. Ceramic is much better. We use FR4 in fairly high voltage circuits. What are the particulars? * Where are you arcing * How many layers, prepreg, etc
Electronics Forum | Thu Apr 18 11:44:34 EDT 2002 | jsmith01
Does anyone know of a PCB material that is better at preventing arcing than fr4 or g10?
