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Old January 13th 08, 11:25 PM posted to rec.radio.cb
james james is offline
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First recorded activity by RadioBanter: Sep 2006
Posts: 298
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On Sun, 13 Jan 2008 08:03:04 -0800 (PST), Telstar Electronics
wrote:

|On Jan 12, 8:00*pm, Vinnie S. wrote:
| Brilliant. Surface mount components and no ESD protection.
|
|Vinny, maybe you can explain to all of us why you would need ESD
|protection... when all components are underneath a grounded metal
|shield. Thanks in advance for your explanation... lol
|http://tinyurl.com/2t2usu
|
|-------------------

Sheilding does nothing for ESD protection. ESD damage can be induced
from power leads as well as signal inputs and outputs. In fact more
damage is done with ESD discharge with ground rising above the
positive supply potential during an ESD event. A 4KV discharge is
easily encountered with handling of any componnent or assembly without
even the person knowing it happens. The human body can impart as much
as a 16KV discharge during an ESD event.

james