Varistor Products
Radial Lead Varistors > UltraMOV series
RoHS UltraMOV™ Varistor Series
Agency Approvals
Agency
Agency File Number
E75961
116895E
LR91788
42201-006
Description
The UltraMOV Metal Oxide Varistor Series is designed for
applications requiring high peak surge current ratings and
high energy absorption capability. UltraMOV varistors are
primarily intended for use in AC Line Voltage applications
such as Transient Voltage Surge Suppressors (TVSS),
Uninterruptable Power Supplies (UPS), AC Power Taps,
AC Power Meters, or other products that require voltage
clamping of high transient surge currents from sources
such as lightning, inductive load switching, or capacitor
bank switching.
These devices are produced in radial lead package sizes of
7, 10, 14, and 20mm and offered in a variety of lead forms.
UltraMOVs are manufactured with recognized epoxy
encapsulation and are rated for ambient temperatures up
UP¡$XJUIOPEFSBUJOH5IJT4FSJFTJT-"4&3CSBOEFEBOE
is supplied in bulk, ammo pack (fan-fold), or tape and reel
packaging.
Features
t -FBEGSFFBOE3P)4
compliant option
available. Please see
the device and ratings
specifications table for
more information.
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Rating (ITM) Up to 10kA,
Single 8 x 20 Pulse,
(20mm)
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Voltage Range
Compatible with
Common AC Line
Voltages (130VAC to
625VAC)
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Maximum Standby
Current (Leakage)
t $VTUPN7PMUBHF5ZQFT
Available
t 4UBOEBSE-FBE'PSNBOE
Lead Space Options
Absolute Maximum Ratings
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TFF%FWJDF3BUJOHTBOE4QFDJmDBUJPOTDIBSU
Continuous
Steady State Applied Voltage:
DC Voltage Range (VM(AC)RMS)
Transients:
Single-Pulse Peak Current (ITM
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4JOHMF1VMTF&OFSHZ3BOHF 8TM
NT4RVBSF8BWF
Operating Ambient Temperature Range (TA)
Storage Temperature Range (TSTG)
Temperature Coefficient (aV) of Clamping Voltage (VC) at Specified Test Current
Hi-Pot Encapsulation ( COATING Isolation Voltage Capability)
COATING Insulation Resistance
UltraMOV™ Series
130 to 625V
1,750 to 10,000
12.5 to 400
UP
UP
<0.01
2500
Units
V
A
J
OC
OC
%/OC
V
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.
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ultramov.html
for the most current information.
15
Revised: April 7, 2008
UltraMOV™ Varistor Series
