
96
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Varistor Products
High Energy Industrial Thermally Protected 
TMOV34S
Varistor Series
MAXIMUM RATING (85
°
C)
SPECIFICATIONS (25
°
C)
CONTINUOUS
TRANSIENT
AC
VOLTS
DC
VOLTS
ENERGY
2ms
WTM
1 x PULSE
PEAK SURGE
CURRENT
8/20
μ
s
ITM
1 x PULSE
(A)
40000
1
40000
2 
40000
3
40000
4
40000
5 
40000
40000
40000
40000
40000
40000
40000 
 40000
40000
40000 
40000 
40000 
40000 
40000 
40000 
40000
40000 
40000
VARISTOR
VOLTAGE AT 1mA
TEST CURRENT
VN(DC)
MIN
MAXIMUM
CLAMPING VOLTAGE
8/20
μ
s at
 200A
TYPICAL
CAPACITANCE
f = 1MHz
VM(AC)RMS
(V)
 115
130
 140
 150
 180
 200
 250
 275
 300
 320
 330
 350
 385
 420
 460
 480
 510
 550
 575
 620
 660
 680
 750
VM(AC)RMS
(V)
 98
 111
 119 
 128
 153
 170
 213
 234
 255
 272
 281
 298
 327 
 357
 391
 408
 434
 468 
 489
 527 
 561 
 578 
 638 
VM(AC)
VN(DC)
MAX
VC
(V)
C
PART
NUMBER
TMOV34S111M
TMOV34S131M 
TMOV34S141M
TMOV34S151M
TMOV34S181M
TMOV34S201M
TMOV34S251M
TMOV34S271M
TMOV34S301M
TMOV34S321M
TMOV34S331M
TMOV34S351M
TMOV34S391M
TMOV34S421M
6
TMOV34S461M
6
TMOV34S481M
6
TMOV34S511M
6
TMOV34S551M
6
TMOV34S571M
6
TMOV34S621M
6
TMOV34S661M
6
TMOV34S681M
6
TMOV34S751M
6
(J)
235
270
291
300
330
335 
370 
400 
435 
460 
475 
500 
550
600 
620 
650 
700 
735 
770 
840 
900 
950 
1050
(V)
(pF)
11500
10000
9000
8000
6800
6500
5000
4500
4050
3800
3700
3500
3300
3000
2800
2700
2500
2250
2200
2100
2000
1970
1800
 MCOV
SURGE
ARRESTER
 150
 175
 188
 200
 240
 265
 330
 369
 400
 420
 435
 460
 506
 560
 610
 640 
 675
 700
 730
 800
 850
 890
 970
163
184
198 
212 
254 
283 
354 
389
433
462
476
505 
555 
610
642 
670 
735 
770 
805 
880 
940 
980 
1080
202
228 
248 
268 
312 
357 
429 
473
528
561
581
616 
678
748
783 
825 
910 
939 
1000 
1074 
1160
1195 
 1320 
 305
345 
375 
405 
488
540
650 
730
780
830
855
910 
1005
1130
1188 
1240 
1350 
1415 
1480 
1589 
1720
1772 
2000
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 (VM(AC)RMS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 to 750
Transient:
Peak Pulse Current (ITM) 
For 8x20μs Current Wave, single pulse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 40,000
Single-Pulse Energy Capability
For 2ms Current Wave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 to 1050
V
A
J
Operating Ambient Temperature Range (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +85
Storage Temperature (TSTG). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125
Temperature Coefficient (
α
V) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500
Thermal Protection Isolation Voltage Capability (when operated)
-Under UL1449 Limited Current Test Procedure-see Note #1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,000
C
o
C
%/
o
C
V
V
M
I
#1 - Under Ul1449 limited current testing parts rated >420V will not open due to 600V voltage limit. Devices with ratings >420V have not yet been evaluated.
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
Absolute Maximum Ratings
UNITS