So I was bored today and was messing around with a new multimeter. I tested some of the caps I had in storage as I was curious how long some of the larger ones from power supplies and the like held a charge.
Then, just out of boredom I started testing some of the smaller caps I have in my spare parts pile. Well, much to my surprise, I have a bunch of 6.3V 1000uF Rubycon that all measured about 0.25 V. I shorted the leads on a few of them, measured again, and the voltage dropped to 0 as expected. I come back a few hours later and they're 0.25 V again. These are about 3 years old, but unused still on the tape and reel.
A few questions from the electronics ignorant me...
Where is it picking up this voltage from? And does it mean anything? None of the other capacitors I have seem to do this, so I was just wondering if it could mean something is wrong with them.
Then, just out of boredom I started testing some of the smaller caps I have in my spare parts pile. Well, much to my surprise, I have a bunch of 6.3V 1000uF Rubycon that all measured about 0.25 V. I shorted the leads on a few of them, measured again, and the voltage dropped to 0 as expected. I come back a few hours later and they're 0.25 V again. These are about 3 years old, but unused still on the tape and reel.
A few questions from the electronics ignorant me...
Where is it picking up this voltage from? And does it mean anything? None of the other capacitors I have seem to do this, so I was just wondering if it could mean something is wrong with them.
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