Johnny Chang is a Product Manager for the Electronic Business Unit. He joined Littelfuse as a Varistor Assistant Product Manager in 2008. His current responsibilities include providing strategic and new production development direction for the revenue and profitability growth of the varistors product line. Johnny received his Electronic Diploma from Oriental Institute of Technology. He has been involved with the design and development of varistors for 10 years. He can be reached at [email protected].