Power Electronics
LV UltraMOV Varistor

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). (Image courtesy of Littlefuse).

LV UltraMOV Varistor Series Serves Apps with Higher DC Voltage, Surge Requirements

Littelfuse Inc. has expanded its popular LV UltraMOV Varistor Series to provide solutions for applications with higher DC voltage and surge requirements. This series, introduced to the market in 2013, originally offered continuous voltage ratings from 14VDC to 56VDC with surge current rating of up to 8kA (8/20µs pulse). 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 percent over competing solutions. The series is available in disc diameters of 5mm, 7mm, 10mm, 14mm and 20mm.

The expanded LV UltraMOVTM Varistor Series provides an ideal circuit protection solution for an even wider range of DC voltage applications than the original line. The expanded voltage ratings meet the voltage requirement for all telecommunication applications and the enhanced surge current rating ensures more robust surge protection. Applications include telecom power systems, surge protection devices, wireless base stations, automation controls, audio and video devices, security systems and fire alarm systems.

The latest additions to the LV UltraMOV TM Varistor Series offer these key benefits:

  • A high peak surge current rating of up to 10kA (8/20µs pulse), which enhances reliability and extends end product lifetime
  • A reduction in the footprint and volume required to provide surge protection, which frees up board space for other critical components
  • A choice of epoxy or phenolic coatings. The phenolic coating option supports higher operating temperatures up to 125°C.
  • A lead-free, halogen-free, and RoHS compliant design enables worldwide compliance to environmental regulations

 LV UltraMOV Series Varistors are available in bulk, tape and reel, and ammo packaging. Sample requests can be placed through authorized Littelfuse distributors worldwide.

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