26 pieces Panasonic/Matsushita ECN-C4A paper in oil in ceramic tube no PCB's
0.1 uF +/- 20% 450 vAC (can rate as 1000-1100 VDC - see below)
$1 each plus postage. heavier than polymer caps due to the oil & ceramic tubes.
Index of /Murray/100nF_450ac
You can't estimate AC rating from DC rating with capacitors due to variations in materials and construction (power dissipation losses and corona, for example) , but you can safely determine a DC rating from an AC-rated capacitor (I discussed with an apps engineer at Nissei Denki Arcotronics - he said derate 10% from p-p equivalent of ac rms rating).
So 450 vrms * 2.828*0.9 = 1145 VDC - so if you want a round number, these are easily good for 1 KV DC.
The bag smells like mineral oil because I put one in a double ziplock bag & smashed the ceramic tube to disassemble it to see what I could learn - not much. White papers on line indicate various proprietary compounds in mineral oil to address hygroscopic & other traits, so who knows what kind of oil. Paper was a cool gold color as it was translucent. I think the foil was aluminum but I didn't try to solder it due to the oil (I accidentally found tin foil in some polymer caps when I tried a soldering iron and it melted into the tinned soldering iron tip!) Aluminum doesn't do that of course.
0.1 uF +/- 20% 450 vAC (can rate as 1000-1100 VDC - see below)
$1 each plus postage. heavier than polymer caps due to the oil & ceramic tubes.
Index of /Murray/100nF_450ac
You can't estimate AC rating from DC rating with capacitors due to variations in materials and construction (power dissipation losses and corona, for example) , but you can safely determine a DC rating from an AC-rated capacitor (I discussed with an apps engineer at Nissei Denki Arcotronics - he said derate 10% from p-p equivalent of ac rms rating).
So 450 vrms * 2.828*0.9 = 1145 VDC - so if you want a round number, these are easily good for 1 KV DC.
The bag smells like mineral oil because I put one in a double ziplock bag & smashed the ceramic tube to disassemble it to see what I could learn - not much. White papers on line indicate various proprietary compounds in mineral oil to address hygroscopic & other traits, so who knows what kind of oil. Paper was a cool gold color as it was translucent. I think the foil was aluminum but I didn't try to solder it due to the oil (I accidentally found tin foil in some polymer caps when I tried a soldering iron and it melted into the tinned soldering iron tip!) Aluminum doesn't do that of course.
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