Subject: | |
From: | |
Reply To: | TechNet Mail Forum. |
Date: | Thu, 11 Sep 1997 13:46:51 +0200 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Hello Technet,
Anybody who has an opinion about if it is necessary to have different rules for derating a design with PED:s (Plastic Encapsulated Devices) than ceramic components?
Sometimes a situation comes up to use PED:s more or less outside the specified temperature limits.
Is there anybody, who has any experience of this and maybe also an idea of sufficient derating when using PEDs outside limits? The use outside temperature limits provides of course the necessary tests. Derating can be performed in different ways, dep. on device types, e.g. reduced voltage, fun-out etc.
Sven-Eric Bäckström
##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe: SUBSCRIBE TECHNET <your full name>
To unsubscribe: SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
##############################################################
|
|
|