Dave - You don't identify the end-product safety standard, but here goes.
Not all polymeric materials are created equal, often not even in the same generic family. Any number of key material parameters might change with the formulation of the resin. To be certain you have a material that meets your needs, you can use UL's on-line Plastics IQ database. It's searchable by parameters, including flammability, generic type, thickness, and other common properties. V-0 is probably a good property to have; it's usually enough for a barrier. However, if the end-product standard(s) include a UL standard that relies on UL746C (Standard for Polymeric Materials; Use in Electrical Equipment Evaluations) as a reference standard, you may have a number of other material parameters to match up, on top of flammability classification. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA [email protected] > From: [email protected] > Sent: Tuesday, August 12, 2003 10:55 AM > > > I need a sheet of plastic that goes between a PCB > and a metal enclosure. This is to make a creepage > spec. What plastics are good for this? Will > polycarbonate be suitable and have a 94V-0 rating? Thanks. > > Dave Cuthbert > Micron Technology > This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
