Voltage / Current / Temperature Protection Devices Product Top Page Catalog Tech Notes Technical Support Tools FAQ Chip Varistors / Ceramic Transient Voltage Suppressors Simulation This is a tool for selecting chip varistors/CTVS that can provide the optimum surge countermeasures for your circuit. TVCL - TDK Virtual Component Library The TVCL is simulation model that reproduce the characteristics of TDK electronic components in circuit simulators. EPCOS Design Tools_http://en.tdk.eu/tdk-en/180524/design-support/design-tools Design tools and simulation models for EPCOS brand components