Consider Tranzobs (trade-name) between the signal lines and a good solid ground (pcb or metalwork). They are exceptionally fast acting avalanche diode transient suppressors. If you do, keep interconnections as short as possible to minimise path inductance. http://www.vishay.com/diodes/protection-tvs-esd/trans-zorb/ I suppose I should say I am in no way endorsing Vishay Transzorbs… But I’m not going to because they’re bloomin’ excellent! (And no, I don't have any connection or interest in Vishay whatsoever.) T
----- Original Message ----- From: Amund Westin Sent: 11/21/12 12:41 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Fast transients - burst - suppression components When doing ±1kV burst (via capacitive coupling clamp) onto an unshielded signal cable, the EUT gets problems (fail operation). The communication signals on the cable are rather slow, below 1MHz. We are planning to make a burst filter and we have ground / chassis pins close by. Any recommendations for good burst suppression components? B.r. 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 < emc-p...@ieee.org > All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 < emcp...@radiusnorth.net > Mike Cantwell < mcantw...@ieee.org > For policy questions, send mail to: Jim Bacher < j.bac...@ieee.org > David Heald < dhe...@gmail.com > - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>