EC21 Product Catalogs - varistor kvr http://www.ec21.com/ec-market/varistor kvr.html Myp34s-471http://jeffbyron.en.ec21.com/Myp34s_471--851365_861108.html Brand Name: KVR Country of Origin: China (mainland) Key Specifications/Special Features: Varistor voltage: 470V20091111 Metal Oxide Varistorhttp://angelatang2008.en.ec21.com/Metal_Oxide_Varistor--2891951_3134417.html Key Specifications of MYG10-511: Varistor voltage: 510 V Disc diameter: 10mm Rated peak single pulse transient cur20081128