Small glass capacitors polarized?

Paul Koning paulkoning at
Mon Sep 28 13:02:38 CDT 2015

> On Sep 28, 2015, at 1:36 PM, Shoppa, Tim <tshoppa at> wrote:
> ...
> There are real glass capacitors used where zero leakage and zero soakage are uber-concerns.

There's no such thing as zero leakage, since all insulators have finite resistance.  Glass is a pretty good insulator, but in fact not the best -- fused quartz or amber are traditional better options where very low leakage is required, and a table in Wikipedia indicates that teflon is better still. 


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