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https://industrial.panasonic.com/ww/products/pt/surge-components/models/ERZVA7D470 ERZVA7D470 - Varistors (ZNR Surge Absorber) - Circuit Protection (ESD, Surge, Fuse etc.) - Panasonic Product specifications and documents of ERZVA7D470, Varistors (ZNR Surge Absorber), Panasonic. circuit protectionvaristorsznrsurgeabsorber