I thought that compliance testing was supposed to be done on the "as-shipped" product, not the designer's prototype.
Ed Price Chula Vista, CA USA -----Original Message----- From: Michael Derby [mailto:micha...@acbcert.com] Sent: Wednesday, October 31, 2012 2:30 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Possible Counterfeit EMC Components? I was chatting with a power supply manufacturer who told me he had worked hard to design his power supply and get it through all the necessary regulations. When complete, he sent the design and instructions out to the manufacturing company. After many of them had been made and sold, he realised the components in the power supply were all cheaper imitations of the components he had instructed the manufacturer to use. D'oh. Michael Derby Regulatory Engineer ACB Europe -----Original Message----- From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: 30 October 2012 20:42 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Possible Counterfeit EMC Components? I recently preformed a safety evaluation of a product made in the far east which contained a suspicious looking rf line filter. Instead of the nice silkscreened markings showing the company name, numbers and a schematic of the filter components, it just had a basic printed label. When I removed the filter and turned it over I found that the case was not soldered but just spot welded in four spots. Are line filter companies cutting corners to save money or might this filter be a counterfeit? The filter manufacturer's website doesn't show this model filter (anymore?) but you can buy them from several online electronic component companies. Has anyone run across counterfeit components and is this something we need to keep an eye out for? My biggest concern is with safety certified components which smaller companies like ours have to purchase through distributors who get them from who knows where. Is this a real concern or am I just being paranoid? Thanks, The Other Brian ________________________________ LECO Corporation Notice: This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - ---------------------------------------------------------------- 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> - ---------------------------------------------------------------- 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>
