Varistor Products
Radial Leaded Varistors > LV UltraMOVTM Series
LV UltraMOVTM Varistor Series
RoHS
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 offering higher surge ratings than ever before available in such
small discs.
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 transients 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.
Phenolic Coated
Agency Approvals
• 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
8KA (8/20 μs pulse)
Agency File Number
Pending
• 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
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
V
DC Voltage Range (VM(DC))
14 to 56
V
500 to 8,000
A
Transient:
Non-Repetitive Surge Current, 8/20μs Waveform (ITM)
Non-Repetitive Energy Capability, 2ms Waveform (WTM)
2.5 to 150
J
Operating Ambient Temperature Range (TA) for Epoxy coated
-40 to +85
°C
Operating Ambient Temperature Range (TA) for Phenolic coated
-40 to +125
°C
Storage Temperature Range (TSTG) for Epoxy coated
-40 to +125
°C
Storage Temperature Range (TSTG) for Phenolic coated
-40 to +150
°C
< 0.01%
°C
Hi-Pot Encapsulation (Isolation Voltage Capability) for Epoxy coated
2500
V
Hi-Pot Encapsulation (Isolation Voltage Capability) for Phenolic coated
500
V
>1,000
MΩ
Temperature Coefficient ( V) of Clamping Voltage (VC) at Specified Test Current
Epoxy Coating Insulation Resistance
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.
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for current information.
85
Revised: June 10, 2013
LV UltraMOVTM Series
LV UltraMOV™ Series
Agency
Features
