Varistor Products
Radial Leaded Varistors > LV UltraMOVTM Series
TM
RoHS
LV UltraMOV Varistor Series
Description
Epoxy Coated
The Littelfuse LV UltraMOV™ Series of low voltage, high
surge current, radial leaded varistors provides an ideal circuit
protection solution for lower DC voltage applications by of-
fering higher surge ratings than ever before available in such
small discs.
Phenolic Coated
The maximum peak surge current rating can reach up to 8KA
(8/20 μs pulse) to protect against high peak surges, including
indirect lightning strike interference, system switching tran-
sients and abnormal fast transients from the power source.
Available in five model sizes: 5mm, 7mm, 10mm, 14mm and
20mm, these device feature a wide VAC voltage range of
11V to 40V, and VDC voltage range of 14V to 56V.
Agency Approvals
Features
• Breakthrough in low
voltage varistor design
provides high peak
• Wide operating voltage
range VM(AC)RMS 11V to 40V
and VM(DC) 14V to 56V
• High operating
temperature range
up to 125ºC
Agency
Agency File Number
E320116
surge current rating
• Reduced footprint and
volume required for
surge protection
• 5 model sizes available:
5, 7, 10, 14, and 20mm
• Optional phenolic coating
• High peak surge
current rating up to
8KA (8/20 μs pulse)
• Standard lead options
• Lead–free, Halogen-Free
and RoHS compliant
Applications
• 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
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Low Voltage Series
Units
Continous:
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS
)
11 to 40
14 to 56
V
V
DC Voltage Range (VM(DC)
)
Transient:
Non-Repetitive Surge Current, 8/20µs Waveform (ITM
)
500 to 8,000
0.8 to 140
-40 to +85
-40 to +125
-40 to +125
-40 to +150
< 0.01%
2500
A
J
Non-Repetitive Energy Capability, 2ms Waveform (WTM
)
Operating Ambient Temperature Range (TA) for Epoxy coated
Operating Ambient Temperature Range (TA) for Phenolic coated
Storage Temperature Range (TSTG) for Epoxy coated
°C
°C
°C
°C
°C
V
Storage Temperature Range (TSTG) for Phenolic coated
Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current
Hi-Pot Encapsulation (Isolation Voltage Capability) for Epoxy coated
Hi-Pot Encapsulation (Isolation Voltage Capability) for Phenolic coated
Epoxy Coating Insulation Resistance
500
V
>1,000
MΩ
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of
the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
LV UltraMOVTM Series
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
85
Revised: January 16, 2014