If you are using IEC/EN 61000-4-2:2008, there is a clause that allows you to use the ESD warning symbol near the connector/port and thus not have to test parts that are ESD sensitive for functional reasons, such as RF inputs. What sort of Rx port are you testing (RF, serial data, etc.) and what connector type?
I'd also agree with Gert's reply to you; especially regarding a full GND plane in the PCB. I've had good luck with Wurth brand SMT ferrite beads in an 0603 or larger size - the smaller package sizes may tend to arc-over and potentially cause further upset. OOO - own opinions only Bryce Stammerjohan From: Amund Westin [mailto:[email protected]] Sent: Tuesday, May 25, 2010 2:15 PM To: [email protected] Subject: [PSES] 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]>
