Littelfuse – LV UltraMOV® Varistor Series Low Voltage, High Surge Current Varistors


Continuous Voltage Rating to 125VDC and Peak Surge Current Ratings to 10kA

The LV UltraMOV Varistor Series has been expanded to provide solutions for applications with higher DC voltage and surge requirements.

The expanded line adds higher continuous voltage ratings from 65VDC to 125VDC, and an enhanced surge current rating of up to 10kA (8/20μs pulse). It combines these higher ratings with the smallest footprint on the market by reducing their size by more than 40% over competing solutions. The series is available in disc diameters of 5mm, 7mm, 10mm, 14mm and 20mm.


  • High peak surge current rating up to 10kA (8/20μs pulse)
  • Reduced footprint and volume required for surge protection
  • Phenolic coating option available
  • Lead-free, halogen-free and RoHS compliant


  • Telecom power systems
  • Surge protection devices
  • Automation controls
  • Audio and video devices
  • Security systems
  • Wireless base stations
  • Fire alarm systems


  • Enhances reliability and extends end product lifetime
  • Frees up board space for other critical components
  • Supports higher operating temperature: up to +125°C
  • Enables worldwide compliance to environmental regulations