[SI-LIST] Re: De-coupling capacitor

  • From: "Tom Dagostino" <tom@xxxxxxxxxxxxx>
  • To: <pradeepa@xxxxxxxxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
  • Date: Mon, 20 Jan 2003 19:55:32 -0800

What was the operating voltage of the board (5V?) and what was the voltage
rating of the capacitor?  Will this system allow voltages to go higher than
the operating voltage such as a regulator that overshoots on initial turn-on
or do you have spikes coming into the supply?  The one thing that will cause
caps to short is over voltage.  Another is damage during handling or
installation.  Most caps should not be run in circuits that have voltages
more than 50 to 80% of the rated voltage of the cap.  Then there is just old
infantile failures.

Tom Dagostino
Teraspeed Consulting Group LLC     Teraspeed Consulting Group LLC
2926 SE Yamhill St.                Device Modeling Division
Portland, OR 97214                 13610 SW Harness Lane
                                   Beaverton, OR 97008
http://www.teraspeed.com           503-430-1065
tom@xxxxxxxxxxxxx


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Pradeep Amrithraj
Sent: Monday, January 20, 2003 6:43 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] De-coupling capacitor



** Proprietary **

Hi,
    in one of my boards (5V) a decoupling capacitor showed short .How does =
this happen ?  Can anyone give me an explanation .

Regards


Pradeep Amirtharaj
Software Engineer
L&T Emsys Mysore.
Ph   : 91 821 402561
Fax  : 91 821 403752
Ext : 2728
Email : pradeepa@xxxxxxxxxxxxxxx



------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List archives are viewable at:
                //www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu


------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field

or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list

For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field

List archives are viewable at:     
                //www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages 
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu
  

Other related posts: