http://www.futureelectronics.com/en/Search.aspx?dsNav=Ny:True,Nea:True,N:2016 . well explain what are metal oxide varistors, multi layer varistors and how to select the right one for your application from our line-up of Varistor products. A metal oxide varistor, (MOV) contains a mass of zinc oxide grains that are in a matrix of other metal oxides. A multilayer varistor, or MLV, provides electronic circuits with an electrostatic discharge protection.. http://youtu.be/FJFMfDH_LrQ
