SIOV metal oxide varistors Housed (ThermoFuse) varistors, AdvanceD series Series/Type: T20 series Date: September 2015 EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS prior express consent is prohibited. EPCOS AG is a TDK Group Company.Housed varistors T20 series ThermoFuse varistors Construction Round varistor element, leaded Coating: epoxy resin, flame-retardant to UL 94 V-0 Terminals: tinned copper wire, metal compound wire Housing: thermoplastic, flame-retardant to UL 94 V-0 Features Wide operating voltage range 130 680 V RMS Self-protected under abnormal overvoltage conditions High-energy AdvanceD series E2 Approvals UL 1449 (file number E321126) IEC (certificate number 101-QA-10 IECQ) VDE (certificate number 40031102) Applications Houshold appliances Power supply units Inverters in solar power systems Lighting applications Communication and data systems Transient voltage surge suppressors (TVSS) Electronic metering Delivery mode Typical applications Tray packing General technical data Climatic category to IEC 60068-1 40/85/56 Operating temperature to IEC 61051 40 ... + 85 C Storage temperature 40 ... + 85 C Electric strength to IEC 61051 2.5 kV RMS Insulation resistance to IEC 61051 100 M Response time < 25 ns Please read Cautions and warnings and Page 2 of 17 Important notes at the end of this document.