elod wrote:cyclone3d wrote:elod wrote:What kind or PSU exactly? OVP should have kicked in if it had any.
OVP is not going to kick in to prevent the explosive gas from exploding that has formed from the electrolyte degrading.
To get this kind of reaction I think you need a pretty violent and long overvoltage. This is why I think PSUs with separate OVP ICs are safer.
Like I said, I had the same exact thing happened as soon as I turned the power on on an NOS KT7A. The instant I pushed the power button 4 or 5 capacitors exploded.
When I did a bit of research before making my first post in this thread, apparently newer capacitors have venting capability so they can release the gas from the electrolyte degrading. The older design didn't have a vent so the gas just stays inside unless the top pops and lets it leak out.
Yeah, I guess it could be from an overvoltage event, but I really doubt it based on past experience.