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
®
varistor’s 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
configuration 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 Approval
UL1414
UL1449
4
UL60691 (selected Tests)
22.2-1
IEC - CECC Spec
IEC - CECC Spec
Agency File
Number
E56529
E75961
E75961SP
LR91788
QC42201-X0001
40021525
Standard
14mm
√
√
N/A
√
√
√
20mm
√
√
1
√
2
√
√
3
√
RoHS and Lead–free
14mm
20mm
√
√
√
N/A
Pending
√
√
√
No.3
Pending
√
√
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
•
•
•
•
•
•
TVSS Products
AC Panel Protection
Modules
AC Line Power Supplies
Surge Protected
Strip Connectors
AC Power Meters
Relocatable AC
Power Taps
•
•
•
•
•
•
GFCI
(Ground Fault
Current Interupter)
Features
•
•
RoHS compliant and
Lead–free available
Patented integrated
thermal protection device
- Patent #US6636403
Designed to facilitate
compliance to
UL1449 2nd Edition
for TVSS product
High peak surge current
rating up to 10kA
•
•
•
•
•
Wave solderable
Standard lead form
and spacing option
Low leakage
-55°C to +85°C
operating temp range
Three-lead version
available for indication
purposes
UPS
(Uninterruptable
Power Supply)
White Goods
Plug-in TVSS
Inverters
AC/DC Power Supplies
•
•
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Revision: June 10, 2010
TMOV
®
and
i
TMOV
®
Varistor Series
TMOV
®
/iTMOV
®
Series
Varistor Products
Radial Lead Varistors > TMOV
®
and iTMOV
®
Series
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
)
Transient:
Peak Pulse Current (I
TM
)
For 8x20μs Current Wave, single pulse
Single-Pulse Energy Capability
For 2ms Current Wave
Operating Ambient Temperature Range (T
A
)
Storage Temperature Range (T
STG
)
Temperature Coefficient (DV) of Clamping Voltage (V
C
) at Specified Test Current
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
Thermal Protection Isolation Voltage Capability (when operated)
COATING Insulation Resistance
Indicator Lead Rating (Lead-3 - iTMOV
®
varistor only):
Continuous RMS current
Surge Current, 8/20μs
TMOV
®
and iTMOV
®
Series
115 to 750
Units
V
6,000 to 10,000
35 to 480
-55 to +85
-55 to +125
<0.01
2,500
600
1,000
100
10,000
A
J
°C
°C
%/°C
V
V
MΩ
mA
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 specification is not implied.
TMOV
®
Ratings & Specifications
Maximum Rating (85°C)
Transient
Suppressed
Energy
Voltage
2ms
Rating
UL 1449
Table 60.1
(V)
300
300
400
400
500
400
500
400
700
700
700
700
700
700
800
700
900
700
900
900
900
900
1200
1200
1200
1200
n/a
W
TM
(J)
35
52
50
100
55
110
60
120
70
135
75
154
80
160
100
170
110
190
125
250
136
372
150
300
160
320
360
Peak Surge
Current 8/20μs
I
TM
1 ×
Pulse
(A)
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
10000
I
TM
2 ×
Pulse
(A)
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
6500
Specifications (25 °C)
Typical
Varistor
Maximum
Capaci-
Voltage at Clamping
tance
1mA Test
Voltage
f
=
Current
8/20μs
1MHz
V
N(DC)
V
N(DC)
V
C
I
PK
C
Min Max
(V)
(V) (A) (pF)
162 198 300 50
1100
162 198 300 100 2400
184 226 340 50 1000
184 226 340 100 1900
200 240 360 50
900
200 240 360 100 1750
216 264 395 50
800
216 264 395 100 1600
243 297 455 50
700
243 297 455 100 1400
281 344 530 50
630
281 344 530 100 1250
324 396 595 50
550
324 396 595 100 1100
351 429 650 50
500
351 429 650 100 1000
387 473 710 50
450
387 473 710 100 900
423 517 775 50
400
423 517 775 100 800
459 561 840 50
380
459 561 840 100 750
558 682 1025 50
360
558 682 1025 100 700
612 748 1120 50
300
612 748 1120 100 600
675 825 1240 100 200
©2010 Littelfuse, Inc.
Revision: June 10, 2010
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Continuous
Lead–free and RoHS
Compliant Models
Standard
Models
Disc
Dia-
Meter
Branding
AC
Volts
V
M(AC)RMS
(V)
115
115
130
130
140
140
150
150
175
175
200
200
230
230
250
250
275
275
300
300
320
320
385
385
420
420
460
(mm)
TMOV14RP115E P4T115E TMOV14R115E 4T115E
14
TMOV20RP115E P2T115E TMOV20R115E 20T115E
20
TMOV14RP130E P4T130E TMOV14R130E 4T130E
14
TMOV20RP130E P2T130E TMOV20R130E 20T130E
20
TMOV14RP140E P4T140E TMOV14R140E 4T140E
14
TMOV20RP140E P2T140E TMOV20R140E 20T140E
20
TMOV14RP150E P4T150E TMOV14R150E 4T150E
14
TMOV20RP150E P2T150E TMOV20R150E 20T150E
20
TMOV14RP175E P4T175E TMOV14R175E 4T175E
14
TMOV20RP175E P2T175E TMOV20R175E 20T175E
20
TMOV14RP200E P4T200E TMOV14R200E 4T200E
14
TMOV20RP200E P2T200E TMOV20R200E 20T200E
20
TMOV14RP230E P4T230E TMOV14R230E 4T230E
14
TMOV20RP230E P2T230E TMOV20R230E 20T230E
20
TMOV14RP250E P4T250E TMOV14R250E 4T250E
14
TMOV20RP250E P2T250E TMOV20R250E 20T250E
20
TMOV14RP275E P4T275E TMOV14R275E 4T275E
14
TMOV20RP275E P2T275E TMOV20R275E 20T275E
20
TMOV14RP300E P4T300E TMOV14R300E 4T300E
14
TMOV20RP300E P2T300E TMOV20R300E 20T300E
20
TMOV14RP320E P4T320E TM0V14R320E 4T320E
14
TMOV20RP320E P2T320E TMOV20R320E 20T320E
20
TMOV14RP385E P4T385E TMOV14R385E 4T385E
14
TMOV20RP385E P2T385E TMOV20R385E 20T385E
20
TMOV14RP420E P4T420E TMOV14R420E 4T420E
14
TMOV20RP420E P2T420E TMOV20R420E 20T420E
20
TMOV20RP460E P2T460E TMOV20R460E 20T460E
20
TMOV
®
and
i
TMOV
®
Varistor Series
Part
Number
Branding
Part
Number
Varistor Products
Radial Lead Varistors > TMOV
®
and iTMOV
®
Series
TMOV
®
Ratings & Specifications
(Continued...)
Maximum Rating (85°C)
Transient
Suppressed
Energy
Voltage
2ms
Rating
UL 1449
Table 60.1
(V)
n/a
n/a
n/a
n/a
n/a
W
TM
(J)
325
360
375
400
480
Peak Surge
Current 8/20μs
I
TM
1 ×
Pulse
(A)
10000
10000
10000
10000
10000
I
TM
2 ×
Pulse
(A)
6500
6500
6500
6500
6500
Specifications (25 °C)
Typical
Varistor
Maximum
Capaci-
Voltage at Clamping
tance
1mA Test
Voltage
f
=
Current
8/20μs
1MHz
V
N(DC)
V
N(DC)
V
C
I
PK
C
Min Max
(V)
(V) (A) (pF)
738 902 1355 100 350
819 1001 1500 100 300
856 1047 1568 100 275
900 1100 1650 100 250
1080 1320 1980 100 175
Continuous
Lead–free and RoHS
Compliant Models
Standard
Models
Disc
Dia-
Meter
Branding
20T510E
20T550E
20T575E
20T625E
20T750E
(mm)
20
20
20
20
20
AC
Volts
V
M(AC)RMS
(V)
510
550
575
625
750
Part
Number
TMOV20RP510E
TMOV20RP550E
TMOV20RP575E
TMOV20RP625E
TMOV20RP750E
Branding
P2T510E
P2T550E
P2T575E
P2T625E
P2T750E
Part
Number
TMOV20R510E
TMOV20R550E
TMOV20R575E
TMOV20R625E
TMOV20R750E
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.
iTMOV
®
Ratings & Specifications
Maximum Rating (85°C)
Specifications (25°C)
Continuous
Transient
Varistor
Maximum Typical
Voltage at Clamping Capaci-
Suppressed
AC
Energy
Peak Surge
1mA Test
Voltage
tance
Voltage
Volts
2ms
Current 8/20μs
Current
8/20μs
f
= 1MHz
Rating
I
TM
1 × I
TM
2 × V
N(DC)
V
N(DC)
UL 1449
W
TM
V
C
I
PK
C
V
M(AC)RMS
Table 60.1
Pulse Pulse Min Max
(V)
(V)
(J)
(A)
(A)
(V)
(V) (A)
(pF)
115
300
35
6000
4500 162 198 300 50
1100
115
300
52
10000 6500 162 198 300 100
2400
130
400
50
6000
4500 184 226 340 50
1000
130
400
100
10000 6500 184 226 340 100
1900
140
500
55
6000
4500 200 240 360 50
900
140
400
110
10000 6500 200 240 360 100
1750
150
500
60
6000
4500 216 264 395 50
800
150
400
120
10000 6500 216 264 395 100
1600
175
700
70
6000
4500 243 297 455 50
700
175
700
135
10000 6500 243 297 455 100
1400
200
700
75
6000
4500 281 344 530 50
630
200
700
154
10000 6500 281 344 530 100
1250
230
700
80
6000
4500 324 396 595 50
550
230
700
160
10000 6500 324 396 595 100
1100
250
800
100
6000
4500 351 429 650 50
500
250
700
170
10000 6500 351 429 650 100
1000
275
900
110
6000
4500 387 473 710 50
450
275
700
190
10000 6500 387 473 710 100
900
300
900
125
6000
4500 423 517 775 50
400
300
900
250
10000 6500 423 517 775 100
800
320
900
136
6000
4500 459 561 840 50
380
320
900
372
10000 6500 459 561 840 100
750
385
1200
150
6000
4500 558 682 1025 50
360
385
1200
300
10000 6500 558 682 1025 100
700
420
1200
160
6000
4500 612 748 1120 50
300
420
1200
320
10000 6500 612 748 1120 100
600
460
n/a
360
10000 6500 675 825 1240 100
200
510
n/a
325
10000 6500 738 902 1355 100
350
550
n/a
360
10000 6500 819 1001 1500 100
300
575
n/a
375
10000 6500 856 1047 1568 100
275
625
n/a
400
10000 6500 900 1100 1650 100
250
750
n/a
480
10000 6500 1080 1320 1980 100
175
Lead–free And RoHS
Compliant Models
Standard
Models
Disc
Diameter
TMOV14RP115M
TMOV20RP115M
TMOV14RP130M
TMOV20RP130M
TMOV14RP140M
TMOV20RP140M
TMOV14RP150M
TMOV20RP150M
TMOV14RP175M
TMOV20RP175M
TMOV14RP200M
TMOV20RP200M
TMOV14RP230M
TMOV20RP230M
TMOV14RP250M
TMOV20RP250M
TMOV14RP275M
TMOV20RP275M
TMOV14RP300M
TMOV20RP300M
TMOV14RP320M
TMOV20RP320M
TMOV14RP385M
TMOV20RP385M
TMOV14RP420M
TMOV20RP420M
TMOV20RP460M
TMOV20RP510M
TMOV20RP550M
TMOV20RP575M
TMOV20RP625M
TMOV20RP750M
P4T115M
P2T115M
P4T130M
P2T130M
P4T140M
P2T140M
P4T150M
P2T150M
P4T175M
P2T175M
P4T200M
P2T200M
P4T230M
P2T230M
P4T250M
P2T250M
P4T275M
P2T275M
P4T300M
P2T300M
P4T320M
P2T320M
P4T385M
P2T385M
P4T420M
P2T420M
P2T460M
P2T510M
P2T550M
P2T575M
P2T625M
P2T750M
TMOV14R115M
TMOV20R115M
TMOV14R130M
TMOV20R130M
TMOV14R140M
TMOV20R140M
TMOV14R150M
TMOV20R150M
TMOV14R175M
TMOV20R175M
TMOV14R200M
TMOV20R200M
TMOV14R230M
TMOV20R230M
TMOV14R250M
TMOV20R250M
TMOV14R275M
TMOV20R275M
TMOV14R300M
TMOV20R300M
TM0V14R320M
TMOV20R320M
TMOV14R385M
TMOV20R385M
TMOV14R420M
TMOV20R420M
TMOV20R460M
TMOV20R510M
TMOV20R550M
TMOV20R575M
TMOV20R625M
TMOV20R750M
4T115M
20T115M
4T130M
20T130M
4T140M
20T140M
4T150M
20T150M
4T175M
20T175M
4T200M
20T200M
4T230M
20T230M
4T250M
20T250M
4T275M
20T275M
4T300M
20T300M
4T320M
20T320M
4T385M
20T385M
4T420M
20T420M
20T460M
20T510M
20T550M
20T575M
20T625M
20T750M
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.
©2008 Littelfuse, Inc.
©2010
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
75
Revision: June 10, 2010
Revision: June 10, 2010
TMOV
®
and
i
TMOV
®
Varistor Series
TMOV
®
/iTMOV
®
Series
Part
Number
Branding
Part
Number
Branding
(mm)
14
20
14
20
14
20
14
20
14
20
14
20
14
20
14
20
14
20
14
20
14
20
14
20
14
20
20
20
20
20
20
20
Varistor Products
Radial Lead Varistors > TMOV
®
and iTMOV
®
Series
Thermal Characteristics
Current, Energy, Power Derating Curve
10
100
Typical
5A
2.5A
0.5A
0.125A
PERCENT OF RATED VALUE
80
1
60
40
20
0.1
10
100
Time(s)
1000
10000
0
-55
50
60
70
80
90
100
AMBIENT TEMPERATURE (ºC)
110
120
130
Figure 1
Figure 2
Note : The TMOV
®
and iTMOV
®
varistors are intended,
in conjunction with appropriate enclosure design, to
help facilitate TVSS module compliance to UL 1449, 2nd
Edition Section 37 (abnormal overvoltage limited current
.4
requirements). Under these extreme abnormal overvoltage
conditions, some units will exhibit substantial heating,
arcing and venting prior to opening. Modules should be
designed to contain this possibility. Application testing is
strongly recommended.
Maximum Clamping Voltage for 14mm Parts
For applications exceeding 85°C ambient temperature, the
peak surge current and energy ratings must be reduced as
shown above.
Maximum Clamping Voltage for 20mm Parts
14mm
10000
Maximum Clamping Voltage
Maximum Leakage Current
750V
625V
575V
550V
510V
460V
420V
385V
320V
275V
Maximum Leakage Current
20mm
10000
Maximum Clamping Voltage
625V
575V
550V
510V
460V
420V
385V
320V
300V
275V
750V
Clamping Voltage (V)
1000
Clamping Voltage (V)
250V
230V
200V
175V
150V
140V
130V
115V
1000
100
0.000001 0.00001 0.0001 0.001 0.01
0.1
1
10
100
1000 10000
100
0.000001 0.00001 0.0001 0.001 0.01
250V
230V
200V
175V
150V
140V
130V
115V
0.1
1
10
100
1000 10000
Figure 3
Peak Current (A)
Figure 4
Peak Current (A)
TMOV
®
and
i
TMOV
®
Varistor Series
Revision: June 10, 2010
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Varistor Products
Radial Lead Varistors > TMOV
®
and iTMOV
®
Series
Repetitive Surge Capability for 14mm Parts
10000
2
1000
Peak Current (A)
Repetitive Surge Capability for 20mm Parts
10000
1
2
1
10
10
2
10
3
10
4
10
5
Model 14 mm
10
10
2
Model 20 mm
10
3
1000
Peak Current (A)
10
4
10
5
10
6
10
6
100
100
10
10
1
10
100
1000
Impulse Duration (μs)
10000
1
10
100
Impulse Duration (μs)
1000
10000
Figure 5
Figure 6
NOTE: Average power dissipation of transients should not exceed 0.6W
NOTE: Average power dissipation of transients should not exceed 1.0W
Wave Solder Profile
Because the TMOV
®
and iTMOV
®
varistors contain a thermal protection device, care must be taken when soldering the devices into place.
Two soldering methods are possible. Firstly, hand soldering: It is recommended to heat-sink the leads of the device. Secondly, wave solder-
ing: It is critically important that all preheat stage and the solder bath temperatures are rigidly controlled.
300
250
TEMPERATURE (ºC)
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
300
Maximum Wave 240C
TEMPERATURE (ºC)
Maximum Wave 260C
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
3
3.5
4
Figure 7
TIME(MINUTES)
Figure 8
TIME(MINUTES)
Physical Specifications
Non Lead–free parts: Solder coated
Copper wire, or Tin–coated Copper wire
Lead–free parts: Tin–coated Copper wire
Solderability per MIL–STD–202,
Method 208E
Cured, flame retardant epoxy polymer
meets UL94V–0 requirements
Marked with LF voltage, UL/CSA logos,
,
and date code
Environmental Specifications
Operating/Storage
Temperature
Passive Aging
Lead Material
Soldering
Characteristics
Insulating Material
-40°C to +85°C
+85°C, 1000 hours
+/-10% typical voltage change
+85°C, 85% RH , 1000 hours
+/-10% typical voltage change
+85°C to -40°C 5 times
+/-10% typical voltage change
MIL–STD–202, Method 215F
Level 1, J–STD–020C
TMOV
®
and
i
TMOV
®
Varistor Series
Humidity Aging
Device Labeling
Thermal Shock
Solvent Resistance
Moisture Sensitivity
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Revision: June 10, 2010
TMOV
®
/iTMOV
®
Series
Non Lead–free Profile
Lead–free Profile
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