Bourns CV Medium Voltage Disc Varistors are designed to be operated continuously in low- and medium-voltage electronic system circuits as well as across AC power lines. Due to their radial-lead construction, Bourns CV Varistors require little mounting space. The series is available in 5mm, 7mm, 10mm, 14mm, and 20mm sizes and features a 50VAC to 680VAC voltage range.