28 Sep
2015
28 Sep
'15
11:02 a.m.
On Sep 28, 2015, at 1:36 PM, Shoppa, Tim <tshoppa
at wmata.com> 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.
paul