Varistor Products
Radial Lead Varistors > TMOV and iTMOV Series
RoHS
TMOV and i TMOV Varistor Series
Description
The Littelfuse TMOV and iTMOV thermally protected
varistors represent a new development in integrated
circuit protection. Both versions are comprised of radial
leaded MOVs (Metal Oxide Varistors) 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. The TMOV
and iTMOV varistors integrated thermal element, in
conjunction with appropriate enclosure design, helps
facilitate TVSS module compliance to UL1449 for both cord
connected and permanently connected applications.
The TMOV and iTMOV varistors offer quick thermal
response due to the close proximity of the integrated
thermal element to the MOV body. The integrated
conguration also offers lower inductance than most
discrete solutions resulting in improved clamping
performance to fast overvoltage transients.
The iTMOV varistor differs from the TMOV 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.
Additionally TMOV and iTMOV varistors are wave
solderable, thus simplifying end product assembly by
reducing the the expense and rework associated with hand
soldering operations.
Agency Approvals
Agency File Standard RoHS and Leadfree
Agency Approval
Number 14mm 20mm 14mm 20mm
UL1414 E56529
4 1
UL1449 E75961
2
UL60691 (selected Tests) E75961SP N/A N/A No.3
22.2-1 LR91788 Pending Pending
3
IEC - CECC Spec QC42201-X0001
IEC - CECC Spec 40021525
1. Devices with ratings greater than 420VAC are not affected by these abnormal voltage conditions.
2. Regarding thermal cut-offs for ratings up to 420VAC.
3. Under evaluation
4. 'Compliant to UL1449 2nd Edition. 3rd edition pending'.
Accelerated Age Testing: Devices comply with Accelerated aging test requirements per ANSI/IEEE C62.11 and may be used in secondary surge arresters without repeating this test.
Applications Features
Wave solderable
RoHS compliant and
TVSS Products GFCI (Ground Fault
Leadfree available
Current Interupter) Standard lead form
AC Panel Protection
and spacing option
Patented integrated
UPS (Uninterruptable
Modules
thermal protection device
Power Supply) Low leakage
AC Line Power Supplies
- Patent #US6636403
White Goods
-55C to +85C
Surge Protected
Designed to facilitate
operating temp range
Plug-in TVSS
Strip Connectors
compliance to
Three-lead version
UL1449 2nd Edition
AC Power Meters Inverters
available for indication
for TVSS product
AC/DC Power Supplies
Relocatable AC
purposes
High peak surge current
Power Taps
rating up to 10kA
2010 Littelfuse, Inc.
TMOV and i TMOV Varistor Series
Specications are subject to change without notice.
Revision: June 10, 2010
Please refer to www.littelfuse.com/series/tmov.html for current information.
TMOV /iTMOV SeriesVaristor Products
Radial Lead Varistors > TMOV and iTMOV Series
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specications chart
TMOV and iTMOV
Continuous Units
Series
Steady State Applied Voltage:
AC Voltage Range (V ) 115 to 750 V
M(AC)RMS
Transient:
Peak Pulse Current (I )
TM
For 8x20s Current Wave, single pulse 6,000 to 10,000 A
Single-Pulse Energy Capability
For 2ms Current Wave 35 to 480 J
Operating Ambient Temperature Range (T ) -55 to +85 C
A
Storage Temperature Range (T ) -55 to +125 C
STG
Temperature Coefficient (V) of Clamping Voltage (V ) at Specified Test Current <0.01 %/C
C
Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 2,500 V
Thermal Protection Isolation Voltage Capability (when operated) 600 V
COATING Insulation Resistance 1,000 M
Indicator Lead Rating (Lead-3 - iTMOV varistor only):
Continuous RMS current 100 mA
Surge Current, 8/20s 10,000 A
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 specication is not implied.
TMOV Ratings & Specications
Maximum Rating (85C) Specications (25 C)
Continuous Transient Typical
Varistor Maximum
Leadfree and RoHS Standard
Capaci-
Disc Voltage at Clamping
Suppressed
Compliant Models Models
tance
AC Energy Peak Surge
Dia- 1mA Test Voltage
Voltage
f =
Volts 2ms Current 8/20s
Meter Current 8/20s
Rating
1MHz
UL 1449 I 1 I 2 V V
TM TM N(DC) N(DC)
Part Part V W V I C
M(AC)RMS TM C PK
Table 60.1 Pulse Pulse Min Max
Branding Branding
Number Number
(mm) (V) (V) (J) (A) (A) (V) (V)(A)(pF)
TMOV14RP115E P4T115E TMOV14R115E 4T115E 14 115 300 35 6000 4500 162 198 300 50 1100
TMOV20RP115E P2T115E TMOV20R115E 20T115E 20 115 300 52 10000 6500 162 198 300 100 2400
TMOV14RP130E P4T130E TMOV14R130E 4T130E 14 130 400 50 6000 4500 184 226 340 50 1000
TMOV20RP130E P2T130E TMOV20R130E 20T130E 20 130 400 100 10000 6500 184 226 340 100 1900
TMOV14RP140E P4T140E TMOV14R140E 4T140E 14 140 500 55 6000 4500 200 240 360 50 900
TMOV20RP140E P2T140E TMOV20R140E 20T140E 20 140 400 110 10000 6500 200 240 360 100 1750
TMOV14RP150E P4T150E TMOV14R150E 4T150E 14 150 500 60 6000 4500 216 264 395 50 800
TMOV20RP150E P2T150E TMOV20R150E 20T150E 20 150 400 120 10000 6500 216 264 395 100 1600
TMOV14RP175E P4T175E TMOV14R175E 4T175E 14 175 700 70 6000 4500 243 297 455 50 700
TMOV20RP175E P2T175E TMOV20R175E 20T175E 20 175 700 135 10000 6500 243 297 455 100 1400
TMOV14RP200E P4T200E TMOV14R200E 4T200E 14 200 700 75 6000 4500 281 344 530 50 630
TMOV20RP200E P2T200E TMOV20R200E 20T200E 20 200 700 154 10000 6500 281 344 530 100 1250
TMOV14RP230E P4T230E TMOV14R230E 4T230E 14 230 700 80 6000 4500 324 396 595 50 550
TMOV20RP230E P2T230E TMOV20R230E 20T230E 20 230 700 160 10000 6500 324 396 595 100 1100
TMOV14RP250E P4T250E TMOV14R250E 4T250E 14 250 800 100 6000 4500 351 429 650 50 500
TMOV20RP250E P2T250E TMOV20R250E 20T250E 20 250 700 170 10000 6500 351 429 650 100 1000
TMOV14RP275E P4T275E TMOV14R275E 4T275E 14 275 900 110 6000 4500 387 473 710 50 450
TMOV20RP275E P2T275E TMOV20R275E 20T275E 20 275 700 190 10000 6500 387 473 710 100 900
TMOV14RP300E P4T300E TMOV14R300E 4T300E 14 300 900 125 6000 4500 423 517 775 50 400
TMOV20RP300E P2T300E TMOV20R300E 20T300E 20 300 900 250 10000 6500 423 517 775 100 800
TMOV14RP320E P4T320E TM0V14R320E 4T320E 14 320 900 136 6000 4500 459 561 840 50 380
TMOV20RP320E P2T320E TMOV20R320E 20T320E 20 320 900 372 10000 6500 459 561 840 100 750
TMOV14RP385E P4T385E TMOV14R385E 4T385E 14 385 1200 150 6000 4500 558 682 1025 50 360
TMOV20RP385E P2T385E TMOV20R385E 20T385E 20 385 1200 300 10000 6500 558 682 1025 100 700
TMOV14RP420E P4T420E TMOV14R420E 4T420E 14 420 1200 160 6000 4500 612 748 1120 50 300
TMOV20RP420E P2T420E TMOV20R420E 20T420E 20 420 1200 320 10000 6500 612 748 1120 100 600
TMOV20RP460E P2T460E TMOV20R460E 20T460E 20 460 n/a 360 10000 6500 675 825 1240 100 200
2010 Littelfuse, Inc.
TMOV and i TMOV Varistor Series
Specications are subject to change without notice.
Revision: June 10, 2010
Please refer to www.littelfuse.com/series/tmov.html for current information.