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Home » NEWEST Products » New by Manufacturer » Littelfuse » Littelfuse LV UltraMOV Varistor Series
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Varistor DC Application Guide

4X Greater Surge ProtectionSuperior peak surge, current ratings in small disc sizes for low DC voltage applications.
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Littelfuse LV UltraMOV™ Varistor Series

Littelfuse LV UltraMOV™ Varistor Series offers maximum peak surge current rating up to 10KA (8/20 μs pulse) to protect against high peak surges, including indirect lightning strike interference, system switching transients and abnormal fast transients from the power source. Available in five model sizes: 5mm, 7mm, 10mm, 14mm and 20mm, these devices feature a wide VAC voltage range of 11V to 40V, VDC voltage range of 14V to 56V, and high operating temperature range up to 125ºC.

The Littelfuse LV UltraMOV™ Varistor Series of low voltage, high surge current, radial leaded varistors provides an ideal circuit protection solution for lower DC voltage applications by offering higher surge ratings than ever before available in such small discs. They are ideal for LED lighting drivers, cordless phones, wireless base stations, audio devices, mobile phone chargers, security systems, fire alarm systems, automation control systems (PLCs), industrial control contact relay, and surge protection devices.

NEW! Now available with voltage ratings up to 125VDC.

  • Voltage ratings up to 125VDC available
  • Breakthrough in low voltage varistor design provides high peak surge current rating
  • Reduced footprint and volume required for surge protection
  • Optional phenolic coating
  • High peak surge current rating up to 10KA (8/20 μs pulse)
  • Wide operating voltage range VM(AC)RMS 11V to 40V and V M(DC) 14V to 56V
  • High operating temperature range up to 125ºC
  • 5 model sizes available: 5, 7, 10, 14, and 20mm
  • Standard lead options
  • Lead-free, Halogen-Free and RoHS compliant
  • LED lighting drivers
  • Cordless phones
  • Wireless base stations
  • Audio devices
  • Mobile phone chargers
  • Security systems
  • Fire alarm systems
  • Automation Control Systems (PLCs)
  • Industrial Control Contact Relay
  • Surge Protection Devices
Part NumberData SheetVoltage Rating DCVoltage Rating ACClamping VoltageVaristor VoltagePeak Surge CurrentSurge Energy RatingCapacitance

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  • Passive Components|Resistors