LV UltraMOV™ Low Voltage High Surge Varistors GREATER Surge Protection Superior Peak Surge Current Ratings in Small Disc Sizes Littelfuse LV UltraMOV ™ Series Varistor offers 4x greater surge withstanding capability than existing technologies on the market today The Littelfuse LV UltraMOV Series Varistor is designed with a new, proprietary formulation that can provide higher surge ratings with a smaller volume of material used per energy unit. It features a wide VAC voltage range of 11V to 40V, and VDC voltage range of 14V to 56V. Datasheet Resources Samples Applications • • • • • • Telecom Power Systems Surge Protection Devices Automation Controls Audio Devices Security Systems Wireless Base Stations LV UltraMOV™ Series Varistor LV UltraMOV provides 4X greater surge protection for low DC voltage applications in the smallest package Epoxy Coated Features Benefits • • • • • • • • • • • • Breakthrough in low voltage varistor design provides 4X greater surge protection Reduced footprint and volume required for surge protection High energy absorption capability High resistance to temperature cycling Optional phenolic coating Lead-free, halogen-free, and RoHS compliant Increased long-term reliability due to the ability to handle higher surges over the end product’s lifetime More board space is available for higher value functional components Lower weight and cost for end product from use of a smaller disc Higher surge handling density in critical surge protection device module solutions Higher operating temperature range—up to 125ºC Environmentally friendly product Phenolic Coated LV UltraMOV How does LV UltraMOV reduce varistor disc size? The LV UltraMOV delivers the same peak surge rating in a disc that’s half the size of other technologies on the market. Supplier 1 8kA 20mm 4kA 14mm 2kA 10mm = 20mm 1kA 7mm = 14mm 500A 5mm = 10mm 4x In the Smallest Package GREATER Available Surge Protection Higher surge rating for the same size disc 10000 Surge Current (A) LV UltraMOV improves the reliability of the varistor by enhancing the surge withstanding capability of the varistor device. For example, a 5mm LV UltraMOV varistor can withstand 100 times as many 100A 8x20μs surges as other 5mm varistors currently available. 10000 10000 1x 2x 100x LV UltraMOV reduces counts for design engineers LV UltraMOV can help circuit designers reduce counts based on the total surge level, thereby reducing the footprint and volume required for surge protection. Repetitive Surge Capacity of a 5mm LV UltraMOV is 100 times greater than that of the regular 5mm MOV by other suppliers 1x 2x 10000 Supplier 1 Supplier 2 LV UltraMOV 4 Parts 2 Parts 1 Part 100x 10000 10 100 1000 10000 Impulse Duration (µs) Higher surge rating for the same size disc with Littelfuse LV UltraMOV Littelfuse LV UltraMOV Series Diameter (mm) VRMS (V) VOC (V) P/N (Max. Op. Temp. 85˚C) P/N (Max. Op. Temp. 125˚C) Imax (8/20) (A) Supplier 1 Supplier 2 Wmax (2ms0) (J) Imax (8/20) (A) Wmax (2ms0) (J) Imax (8/20) (A) Wmax (2ms0) (J) 5 11 14 V05E11P V05P11P 500 2 100 0.3 250 0.4 7 11 14 V07E11P V07P11P 1000 4 250 0.8 500 0.9 10 11 14 V10E11P V10P11P 2000 8 500 1.7 1000 2.2 14 11 14 V14E11P V14P11P 4000 22 1000 3.2 2000 4.3 20 11 14 V20E11P V20P11P 8000 35 2000 10 3000 12 © 2013 Littelfuse • LV UltraMOV Series littelfuse.com