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.
Device Ratings and Specifications - TMOV Varistor Series
™
MAXIMUM RATING (85°C)
CONTINUOUS
TRANSIENT
PEAK SURGE
SUPPRESSED
ENERGY
VOLTAGE
CURRENT
RATING
2ms
8/20µs
UL 1449
TABLE 60.1
SPECIFICATIONS (25°C)
VARISTOR
VOLTAGE AT 1mA
TEST CURRENT
MAXIMUM
CLAMPING
VOLTAGE
8/20µs
TYPICAL
CAPACI-
TANCE
f = 1MHz
PART
NUMBER
TMOV14R115E
TMOV20R115E
TMOV14R130E
TMOV20R130E
TMOV14R140E
TMOV20R140E
TMOV14R150E
TMOV20R150E
TMOV14R175E
TMOV20R175E
TMOV14R200E
TMOV20R200E
TMOV14R230E
TMOV20R230E
TMOV14R250E
TMOV20R250E
TMOV14R275E
TMOV20R275E
TMOV14R300E
TMOV20R300E
DEVICE
DISC
MODEL
DIA-
NUMBER METER
BRAND-
ING
(mm)
4T115E
14
20T115E
20
4T130E
14
20T130E
20
4T140E
14
20T140E
20
4T150E
14
20T150E
20
4T175E
14
20T175E
20
4T200E
14
20T200E
20
4T230E
14
20T230E
20
4T250E
14
20T250E
20
4T275E
14
20T275E
20
4T300E
14
20T300E
20
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
(V)
300
300
400
400
500
400
500
400
700
700
700
700
700
700
800
700
900
700
900
900
W
TM
(J)
35
52
50
100
55
110
60
120
70
135
75
154
80
160
100
170
110
190
125
250
I
TM
(A)
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
I
TM
(A)
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
V
N(DC)
MIN
V
N(DC)
MAX
1 x PULSE 2 x PULSE
(V)
162
162
184
184
200
200
216
216
243
243
281
281
324
324
351
351
387
387
423
423
198
198
226
226
240
240
264
264
297
297
344
344
396
396
429
429
473
473
517
517
V
C
(V)
300
300
340
340
360
360
395
395
455
455
530
530
595
595
650
650
710
710
775
775
I
PK
(A)
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
50
100
C
(pF)
1100
2400
1000
1900
900
1750
800
1600
700
1400
630
1250
550
1100
500
1000
450
900
400
800
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.
28
w w w. l i t t e l f u s e . c o m
Varistor Products
Thermally Protected
TMOV
®
and
iTMOV
®
Varistor Series
Device Ratings and Specifications - TMOV Varistor Series continued...
MAXIMUM RATING (85°C)
TRANSIENT
PEAK SURGE
SUPPRESSED
AC
ENERGY
CURRENT
VOLTAGE
RATING
VOLTS
2ms
8/20µs
UL 1449
ITM
ITM
V M(AC)RMS TABLE 60.1
WTM
1 x PULSE 2 x PULSE
(V)
(V)
(J)
(A)
(A)
SPECIFICATIONS (25°C)
MAXIMUM
VARISTOR
CLAMPING
VOLTAGE AT 1mA
VOLTAGE
TEST CURRENT
8/20µs
VN(DC)
V N(DC)
VC
IPK
MIN
MAX
(V)
(V)
(A)
CONTINUOUS
DEVICE
MODEL
NUMBER
BRANDING
DISC
DIA-
METER
(mm)
TYPICAL
CAPACI-
TANCE
f = 1MHz
C
(pF)
PART
NUMBER
TMOV14R320E
TMOV20R320E
TMOV14R385E
TMOV20R385E
TMOV14R420E
TMOV20R420E
TMOV20R460E
TMOV20R510E
TMOV20R550E
TMOV20R575E
TMOV20R625E
TMOV20R750E
4T320E
20T320E
4T385E
20T385E
4T420E
20T420E
20T460E
20T510E
20T550E
20T575E
20T625E
20T750E
14
20
14
20
14
20
20
20
20
20
20
20
320
320
385
385
420
420
460
510
550
575
625
750
900
900
1200
1200
1200
1200
n/a
n/a
n/a
n/a
n/a
n/a
136
273
150
300
160
320
360
325
360
375
400
480
6000
10000
6000
10000
6000
10000
10000
10000
10000
10000
10000
10000
4500
6500
4500
6500
4500
6500
6500
6500
6500
6500
6500
6500
459
459
558
558
612
612
675
738
819
856
900
1080
561
561
682
682
748
748
825
902
1001
1047
1100
1320
840
840
1025
1025
1120
1120
1240
1355
1500
1568
1650
1980
50
100
50
100
50
100
100
100
100
100
100
100
380
750
360
700
300
600
200
350
300
275
250
175
2
VARISTOR
PRODUCTS
29
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.
Device Ratings and Specifications -
iTMOV
Varistor Series
MAXIMUM RATING (85°C)
CONTINUOUS
TRANSIENT
SUPPRESSED
VOLTAGE
RATING
PART
NUMBER
TMOV14R115M
TMOV20R115M
TMOV14R130M
TMOV20R130M
TMOV14R140M
TMOV20R140M
TMOV14R150M
TMOV20R150M
TMOV14R175M
TMOV20R175M
TMOV14R200M
TMOV20R200M
TMOV14R230M
TMOV20R230M
TMOV14R250M
TMOV20R250M
TMOV14R275M
TMOV20R275M
TMOV14R300M
TMOV20R300M
DEVICE
DISC
MODEL
DIA-
NUMBER METER
BRAND-
ING
(mm)
4T115M
14
20T115M
20
4T130M
14
20T130M
20
4T140M
14
20T140M
20
4T150M
14
20T150M
20
4T175M
14
20T175M
20
4T200M
14
20T200M
20
4T230M
14
20T230M
20
4T250M
14
20T250M
20
4T275M
14
20T275M
20
4T300M
14
20T300M
20
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
ENERGY
2ms
W
TM
(J)
35
52
50
100
55
110
60
120
70
135
75
154
80
160
100
170
110
190
125
250
UL 1449
TABLE 60.1
PEAK SURGE
CURRENT
8/20µs
I
TM
I
TM
1 x PULSE 2 x PULSE
(V)
300
300
400
400
500
400
500
400
700
700
700
700
700
700
800
700
900
700
900
900
(A)
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
6000
10000
(A)
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
4500
6500
SPECIFICATIONS (25°C)
MAXIMUM
TYPICAL
VARISTOR
CLAMPING
CAPACI-
VOLTAGE AT 1mA
VOLTAGE
TANCE
TEST CURRENT
8/20µs
f = 1MHz
V
N(DC)
V
N(DC)
V
C
I
PK
C
MIN
MAX
(V)
(V)
(A)
(pF)
162
198
50
1100
300
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
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.
w w w. l i t t e l f u s e . c o m
Varistor Products
Thermally Protected
TMOV
®
and
iTMOV
®
Varistor Series
Device Ratings and Specifications -
iTMOV
Varistor Series continued...
MAXIMUM RATING (85°C)
SPECIFICATIONS (25°C)
TRANSIENT
CONTINUOUS
MAXIMUM
TYPICAL
CLAMPING
PEAK SURGE
VARISTOR
CAPACI-
SUPPRESSED
VOLTAGE
VOLTAGE
CURRENT
VOLTAGE AT 1mA
AC
ENERGY
TANCE
RATING
8/20µs
8/20µs
VOLTS
TEST CURRENT
2ms
f = 1MHz
UL 1449
I
TM
I
TM
V
N(DC)
V
N(DC)
V
M(AC)RMS
TABLE 60.1
W
TM
V
C
I
PK
C
1 x PULSE 2 x PULSE
MIN
MAX
(V)
(J)
(V)
(V)
(A)
(pF)
(V)
(A)
(A)
900
320
136
459
561
840
50
380
4500
6000
900
320
273
459
561
840
100
750
6500
10000
150
360
682
385
1200
6000
558
4500
1025
50
300
682
385
1200
10000
558
6500
1025
100
700
1120
160
300
748
420
1200
6000
612
4500
50
320
600
748
420
1200
10000
612
6500
1120
100
825
200
460
10000
675
n/a
6500
1240
100
360
325
902
350
510
n/a
10000
738
6500
1355
100
360
1001
300
550
n/a
10000
819
6500
1500
100
375
275
575
n/a
10000
856
6500
1568
100
1047
10000
6500
400
1650
100
250
1100
625
900
n/a
750
n/a
480
10000
6500
1080
1320
1980
100
175
PART
NUMBER
TMOV14R320M
TMOV20R320M
TMOV14R385M
TMOV20R385M
TMOV14R420M
TMOV20R420M
TMOV20R460M
TMOV20R510M
TMOV20R550M
TMOV20R575M
TMOV20R625M
TMOV20R750M
DEVICE
MODEL
NUMBER
BRAND-
ING
4T320M
20T320M
4T385M
20T385M
4T420M
20T420M
20T460M
20T510M
20T550M
20T575M
20T625M
20T750M
DISC
DIA-
METER
(mm)
14
20
14
20
14
20
20
20
20
20
20
20
NOTE: For 14mm devices with a voltage rating greater than 420V, please contact factory regarding availability.
30
w w w. l i t t e l f u s e . c o m
Varistor Products
Thermally Protected
TMOV
®
and
iTMOV
®
Varistor Series
Lead Configurations
TMOV Varistor
Thermal
Fuse
Element
i
TMOV Varistor
2
Thermal
Fuse
Element
3
Monitor Lead
MOV
MOV
1
2
3
1
2
VARISTOR
PRODUCTS
Note: MOVs are non-polarized passive elements
i
TMOV Varistor Application Examples
The application examples below show how the indicator lead on the
iTMOV
can be used to indicate that the thermal element has been
opened. This signifies that the circuit is no longer protected from
transients by the MOV.
Line
Line Fuse
To Protected Circuit
AC OPTOCOUPLER
TO STATUS
ANNUNCIATOR
LIGHT/ALARM
Load Switch Relay
(loss of protection)
"Load Powered"
neon lamp
R
iTMOV
Varistor
LED
Application Example 1 (Figure 1)
In this case, the LED is normally on, and is off when the thermal
element opens.
R
Neutral
Figure 1. Application example 1
Application Example 2 (Figure 2)
This circuit utilizes an optocoupler to provide galvanic isolations
between the
iTMOV
varistor and the indicating or alarm circuitry.
Application Example 3 (Figure 3)
This circuit illustrates the use of the monitoring lead of the
iTMOV
varistor to ensure that equipment is only operated when overvoltage
protection present. In normal operation the load switch relay solenoid is
powered via the indicator lead of the
iTMOV
varistor. In the event of the
thermal element being activated, the relay will de-activate, cutting power
to the protected circuit and the fault LED will illuminate.
Line
To Protected Circuit
Line Fuse
iTMOV
Varistor
R
Neutral
Figure 2. Application example 2
Please note: Indicator circuits are provided as a guideline only.
Verification of actual indicator circuitry is the responsibility of the end
user. Component values selected must be appropriate for the specific