If it's the signal lines: Serial impedance (L-R-ferrite) combined with 2 fast diodes to supply and ground.
If its ground (shell) better ground the shell with (metal) enclosure If you have no ground .... re-design ;<))) Without a full ground plane in the PCB you will have a tough time fixing. Gert Gremmen Van: [email protected] [mailto:[email protected]] Namens Amund Westin Verzonden: dinsdag 25 mei 2010 23:15 Aan: [email protected] Onderwerp: ESD - some basic hints pls I have a 24VDC operated ITE / radio unit. It fails on 6kV (contact discharge) applied to RX port. Microprocessor restarts. Any basic advice how to protect the unit? I have no ground in my system. Best regards Amund - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
