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Circuit Protection Products Selection Guide A guide to selecting the right protection components for your applicationsDesign with Confidence Supported by our Deep Application Expertise and Extensive Portfolio About this guide This guide provides a summary of key circuit protection consideration factors, descriptions of the technologies Littelfuse offers, and product selection tables. It is designed to help you quickly find a protection solution appropriate to your application. Topic Page Littelfuse Circuit Protection Technologies 45 Overcurrent Protection Solutions 6 Overvoltage Protection Solutions 7 ESD Suppression Solutions 8 Applications 911 Common Circuit Threats and Protection Solutions 1213 Fuses 1416 Fuseholders 17 Surface Mount PPTC Devices 1819 Radial Leaded PPTC Devices 1920 Battery PPTC Devices 20 Battery Mini-Breakers (Thermal Cutoff Devices) 21 Telecom PPTC Devices 22 Varistors 2324 Gas Discharge Tubes 2426 PulseGuard ESD Suppressors 26 TVS Diode Arrays 2729 TVS Diodes 2931 PLED Bypass Protectors 3233 SIDACtor Protection Thyristors 3335 Specifications, descriptions, and illustrative material in this literature are as accurate as known at the time of publication, but are subject to changes without notice. Visit Littelfuse.com for more information. 2020 Littelfuse, Inc.