P.O. Box 14460 St. Louis, MO 63178-4460 114 Old State Road Ellisville, MO 63021 Phone: (636) 527-3877 Date: November 10, 2010 To: 0603ESDA-TR1 Customers Subject: Secondary Manufacturing Site for 0603ESDA-TR1 Cooper Bussmann now has a second 0603ESDA-TR1 production line in DongGuan, China. This may affect the Country of Origin (COO) for these products as they are now being manufactured in both Taiwan and China. This change will be effective beginning December 1, 2010. Both our Taiwan and China factories use the same design and process to produce the 0603ESDA-TR1. As a result, there are not any performance differences between the products made at the two different facilities. If you have any questions about this, please contact our local Cooper Bussmann representative. Thank you for your business and your cooperation. Product Management Electronic Circuit Protection Cooper Bussmann