[Boatanchors] [ARC5] Electrolytics- How Much is Too Much

[Richard Knoppow]

----- Original Message ----- 
From: "David Stinson" <arc5 at ix.netcom.com>
To: <boatanchors at theporch.com>; 
<boatanchors at mailman.qth.net>
Sent: Wednesday, January 30, 2013 3:59 AM
Subject: [ARC5] Electrolytics- How Much is Too Much


> High Voltage electrolytics- how much current leakage
> at rated voltage is "too much?"
>
> There are old standards published 70 years ago,
> but I'm interested in your current insight.
> Say- I have an original can capacitor, rated 40-40-40 at 
> 450 volts.  After sitting with all three tied together and 
> at
> 400 volts, total leakage was about 1.5. mA.
>
> I'm not interested in re-igniting the nasty name-calling
> over whether or not "re-forming" caps is a good or bad 
> idea- only in what level of leakage is, in your opinion,
> acceptable in order to maintain a stock part in a set.
>
> 73 DE Dave AB5S
>

     There is a little information at
http://www.electronics-tutorials.ws/capacitor/cap_3.html

This states that typical good electrolytic has leakage of 
from 5 to 15 microamps per microfarad.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com