This is to certify that the Quality Management System of: ProTek Devices LP 2929 S. Fair Lane Tempe AZ 85282 applicable to: Design, Manufacture and Test of Transient Voltage Suppressors and Analog Mixed Signal Semiconductor Devices for Communication, Industrial, Computer, Medical, Automotive and Aerospace Industries has been assessed and approved by National Quality Assurance, U.S.A., against the provisions of: ISO 9001: 2008 K For and on behalf of NQA, USA Certificate Number: 11861 EAC Code: 19 Certified Since: April 13, 2006 Valid Until: August 19, 2018 Reissued: August 20, 2015 Cycle Issued: August 20, 2015 Page 1 of 1 This approval is subject to the company maintaining its system to the required standard, which will be monitored by NQA, USA, 4 Post Office Square, Acton, MA 01720, an accredited organization under the ANSI-ASQ National Accreditation Board.