Metal-OxideVaristors (MOVs)
Radial Lead Varistors > UltraMOV® Varistor Series
®
ꢀoHS
UltraMOV Varistor Series
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 Surge Protection Device (SPD), Uninterruptable
Power Supplies (UPS), AC PowerTaps, 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. UltraMOV® varistor are manufactured with
recognized epoxy encapsulation and are rated for ambient
temperatures up to 85ºC with no derating. This Series is
LASER-branded and is supplied in bulk, ammo pack (fan-
fold), or tape and reel packaging.
Agency Approvals
Agency File
Agency
Agency Approval
Number
3
UL1449
E320116
CECC 42201-006
IEC 61051-1
IEC 61051-2
1
116895
91788
Features
IEC 60950-1 (Annex Q) for 14mm
and 20mm only
• Lead–free, Halogen-Free • Custom voltage
CSA C22.2 No. 1
and RoHS compliant
types available
• High peak surge
current rating (I ) up
to 10kA, single T8Mx
20 pulse, (20mm)
• Standard lead form and
lead space options
CECC 42201-006
IEC 61051-1
IECQ-C
IEC 61051-2
1
• High operating
BSI 14.0001
IEC 60950-1 (Annex Q) for 10mm,
14mm and 20mm only
temperature range up to
125°C (phenolic coating
option). 10mm, 14mm
and 20mm devices are
UL Recognized and
• Standard operating
voltage range compatible
with common AC
IEC/EN 61051-1
IEC 61051-2
IEC 61051-2-2
2
line voltages (130
J 50324242
VAC to 625 VAC)
TUV certified with 800V
isolation voltage rating
IEC 60950-1 (Annex Q) for 10mm,
14mm and 20mm only
• Characterized for
maximum standby
current (Leakage)
Notes:
. Epoxy coated only.
2. Phenolic coated only.
Absolute Maximum Ratings
3. All epoxy coated sizes are UL Recognized while only 10mm, 14mm, and 20mm phenolic
coated parts are UL recognized.
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous
UltraMOV® Varistor Series
Units
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS
)
130 to 625
V
Transients:
Single-Pulse Peak Current (ITM) 8x20µs Wave (See Figure 2)
1,750 to 10,000
12.5 to 400
-55 to +85
-55 to +125
-55 to +125
-55 to +150
<0.01
A
J
Single-Pulse Energy Range (WTM) 2ms Square Wave
Operating AmbientTemperature Range (TA)for Epoxy coated
Operating AmbientTemperature Range (TA)for Phenolic coated
StorageTemperature Range (TSTG)for Epoxy coated
ºC
ºC
ºC
StorageTemperature Range (TSTG)for Phenolic coated
Temperature Coefficient (aV) of Clamping Voltage (VC) at SpecifiedTest Current
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
COATING Insulation Resistance
ºC
%/ºC
V
2500
1000
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.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/14/17