Metal-OxideVaristors (MOVs)
Radial Lead Varistors > TMOV® and iTMOV® Varistor Series
®
®
RoHS
TMOV and iTMOV Varistor Series
Description
The LittelfuseTMOV® and iTMOV® thermally protected
varistors represent a new development in integrated
circuit protection. Both versions are comprised of radial
leaded Metal Oxide Varistors (MOVs) with an integrated
thermally activated element designed to open in the
event of overheating due to the abnormal overvoltage,
limited current, conditions outlined in UL1449. TheTMOV®
and iTMOV® varistor’s integrated thermal element, in
conjunction with appropriate enclosure design, helps
facilitate SPD module compliance to UL1449 for both cord
connected and permanently connected applications.
TheTMOV® and iTMOV® varistors offer quick thermal
response due to the close proximity of the integrated
thermal element to the MOV body. The integrated
configuration also offers lower inductance than most
discrete solutions resulting in improved clamping
performance to fast overvoltage transients.
Agency Approvals
Agency
Agency Approval
Agency File Number
UL1449
E320116
The iTMOV® varistor differs from theTMOV® varistor by the
inclusion of a third lead for the purpose of indicating that
the MOV has been disconnected from the circuit. This lead
facilitates connection to monitoring circuitry.
QC 42201-C001,
QC 42201-A001,
IEC 60950-1 (Annex Q)
IECQ-C BSI 15.0009
40021525
AdditionallyTMOV® and iTMOV® varistors are wave
solderable, thus simplifying end product assembly by
reducing the the expense and rework associated with hand
soldering operations.
IEC 61051-1,
IEC 61051-2,
IEC 60950-1 (Annex Q)
Additional Information
Features
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•
-55°C to +85°C
operating temp range
•
•
•
RoHS compliant
Halogen-Free and
Lead–free available
Three-lead version
available for indication
purposes
Designed to facilitate
compliance to UL1449
for SPD products
Datasheet
iTMOV
Resources
iTMOV
Samples
iTMOV
High peak surge current
rating up to 10kA
•
•
Wave solderable
Datasheet
TMOV
Resources
TMOV
Samples
TMOV
Standard lead form
and spacing option
Applications
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GFCI (Ground Fault
Current Interupter)
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•
SPD Products
AC Panel Protection
Modules
UPS (Uninterruptable
Power Supply)
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•
AC Line Power Supplies
•
•
•
•
White Goods
Plug-in SPD
Surge Protected
Strip Connectors
Inverters
•
•
AC Power Meters
AC/DC Power Supplies
Relocatable AC
PowerTaps
© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 10/01/19