Though it's conceptually a simple issue, the variations in manufacturing can lead to uncertainty in the operation of such a trace. Simply calculating track width (of an ideal copper clad board) for 1A continuous is insufficient for the intended use and a potential liability...
...I could swear you were around for the lengthy discussions we had on this subject years ago. aj >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of Butcher, Bob >Sent: Friday, November 04, 2005 12:30 PM >To: [email protected] >Subject: [PEDA] How do I design a fusible link into a PCB? > >I want to add a narrow circuit trace to a PCB design to act as a fuse. >It should operate with 1 Amp of current continuously and open >if the current exceeds a higher value (2-5 Amp). This project >is very cost sensitive and a 15 cent fuse may be too much. I >have the guidelines for conductor heating vs cross section, >and it appears the conductor would need to be less than 10 >mils wide on a 1 Oz copper board. Does anyone have experience >with this subject? > >Bob Butcher >[EMAIL PROTECTED] > > >____________________________________________________________ >You are subscribed to the PEDA discussion forum > >To Post messages: >mailto:[email protected] > >Unsubscribe and Other Options: >http://techservinc.com/mailman/listinfo/peda_techservinc.com > >Browse or Search Old Archives (2001-2004): >http://www.mail-archive.com/[email protected] > >Browse or Search Current Archives (2004-Current): >http://www.mail-archive.com/[email protected] > > This e-mail transmission and its attachments may contain information from Avtron Manufacturing, Inc. that is proprietary, privileged and/or confidential and is intended exclusively for the person(s) to whom it is addressed. Any use, copying, retention or disclosure by any person other than the intended recipient or the intended recipient's designees is strictly prohibited. If you have received this message in error, please notify the sender immediately by return e-mail and delete all copies. ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
