Aumov LV Ultramov Varistor Design Guide Page 3 Varistor Design Guide For DC & Automotive Applications

DC Application Varistor Design Guide 2015 Littelfuse DC Application Varistor Design Guide www.littelfuse.com About the AUMOV Varistor Series The AUMOV Varistor Series is designed for circuit protection in low voltage (12VDC, 24VDC and 42VDC) automotive systems. This series is available in five disc sizes with radial leads with a choice of epoxy or phenolic coatings. The Automotive MOV Varistor is AEC-Q200 (Table 10) compliant. It offers robust load dump, jump start, and peak surge current ratings, as well as high energy absorption capabilities. These devices are available in these sizes and ratings: Disc sizes: 5mm, 7mm, 10mm, 14mm, 20mm Operating Voltage Ratings: 16-50VDC Surge Current Ratings: 400-5000A (8/20 s) Jump Start Ratings: 6-100 Joules Load Dump Ratings: 25-35 VJump AUMOV Varistor Series Features AEC-Q200 (Table 10) compliant Robust load dump and jump start ratings High operating temperature: up to 125C (phenolic coating option) High peak surge current rating and energy absorption capability AUMOV Varistor Series Benefits Meets requirements of the automotive industry Complies with ISO 7637-2 Offers options suitable for higher temperature environments and applications Enhances product safety as a result of superior surge protection and energy absorption ISO/TS 16949 Certified manufacturing facilities About the AUMOV Varistor Series 2

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