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[DPRG] Capacitor Question

Subject: [DPRG] Capacitor Question
From: rten at new.metronet.com rten at new.metronet.com
Date: Wed Aug 13 22:24:08 CDT 2003

Years ago, as a green tech, I managed to ground the common line of a
non-isolated supply and explode an electrolytic. The lead tech made me
wear it on my badge all week.
Ralpk

On Wed, 13 Aug 2003, Rick J. Bickle wrote:

> Ralph,
>
> This is also true of polarized Tantalum capacitors. If you get them
> backwards they tend to explode and can fire pieces like projectiles
> across the room. Of course, I've never done this myself... ;)
>
> Rick J. Bickle
> Integrated Control Systems
> Voice:  (972) 522-1593
> Fax:    (972) 660-7950
> Mail:   PO BOX 541058
>         Grand Prairie, TX. 75054-1058
> Email:  rbickle at intconsys.com
> Web:    www.intconsys.com
>
>
> -----Original Message-----
> From: dprglist-admin at dprg.org [mailto:dprglist-admin at dprg.org] On Behalf
> Of rten at new.metronet.com
> Sent: Tuesday, August 12, 2003 2:05 PM
> To: Randal Matthew
> Cc: dprglist at dprg.org
> Subject: Re: [DPRG] Capacitor Question
>
>
> Randal:
> All capacitors that are not electrolytic are normally not polarized and
> can inserted with into the board with impunity.
>
> Polarized caps such as electrolytics of most kinds will at least
> overheat and short, or outright explode with reversed polarity. Ralph
>
> On Mon, 11 Aug 2003, Randal Matthew wrote:
>
> > Ok, now I am feeling really stupid. I see several drawings with
> > capacitors showing polarity and several drawings with capacitors that
> > show no polarity. As far as I knew capacitors always had polarity? Can
>
> > somebody shed light on this for me?
> >
>
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