80
Varistor Products
©2009 Littelfuse, Inc.
Revision: November 5, 2009
TMOV
®
and
i TMOV
®
Varistor Series
Radial Lead Varistors > TMOV25S
TM
Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/tmov.html for current information.
Absolute Maximum Ratings
· For ratings of individual members of a series, see Device Ratings and Specifications chart.
TMOV25S
TM
Series
Units
Continous:
AC Voltage Range (V
M(AC)RMS
)
115 to 750
V
Transient:
Peak Pulse Current (I
TM
)
For 8x20s Current Wave, single pulse
20,000
A
Single-Pulse Energy Capability
For 2ms Current Wave
170 to 670
J
Operating Ambient Temperature Range (T
A
)
-55 to +85
°C
Storage Temperature Range (T
STG
)
-55 to +125
°C
Temperature Coefficient (
DV) of Clamping Voltage (V
C
) at Specified Test Current
<0.01
%/°C
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
2,500
V
Under UL 1449 Limited Current Test Procedure-see NOTE#1
600
V
COATING Insulation Resistance
1,000
M
Maximum Rating (85°C)
Specifications (25 °C)
Continuous
Transient
Varistor Voltage
at 1mA Test
Current
Clamping
Voltage at 100A
Current 8/20s
UL 1449
3
RD
Edition
Nominal
Discharge
Current
Typical
Capacitance
AC
Volts
Energy
2ms
Peak
Current
8/20s
Part
Number
Branding
V
M(AC)RMS
/MCOV
W
TM
I
TM
1 ×
Pulse
V
N(DC)
Min
V
N(DC)
Max
V
C
VPR
2
I
N
C
(V)
(J)
(A)
(V)
(V) (V)
(A)
(pF)
TMOV25SP115M
P25T115M
115
170
20000
162
198
295
400
5800
3200
TMOV25SP130M
P25T130M
130
190
20000
184
226
335
500
5800
2800
TMOV25SP140M
P25T140M
140
210
20000
200
240
355
500
5800
2500
TMOV25SP150M
P25T150M
150
220
20000
216
264
390
500
5800
2300
TMOV25SP175M
P25T175M
175
250
20000
243
297
450
600
5800
1900
TMOV25SP230M
P25T230M
230
300
20000
324
396
585
700
5800
1500
TMOV25SP250M
P25T250M
250
330
20000
351
429
640
800
5800
1400
TMOV25SP275M
P25T275M
275
350
20000
387
473
700
900
5800
1250
TMOV25SP300M
P25T300M
300
370
20000
423
517
765
1000
5800
1150
TMOV25SP320M
P25T320M
320
390
20000
459
561
825
1000
5800
1080
TMOV25SP385M
P25T385M
385
430
20000
558
682
1010
1200
5800
900
TMOV25SP420M1
P25T420M
420
460
20000
612
748
1100
1500
5800
820
TMOV25SP440M1
P25T440M
440
470
20000
643
787
1160
n/a
5800
790
TMOV25SP460M1
P25T460M
460
490
20000
675
825
1220
n/a
5800
750
TMOV25SP510M1
P25T510M
510
520
20000
738
902
1335
n/a
5800
680
TMOV25SP550M1
P25T550M
550
550
20000
819
1001
1475
n/a
5800
630
TMOV25SP625M1
P25T625M
625
600
20000
900
1100
1625
n/a
5800
550
TMOV25SP750M1
P25T750M
750
670
20000
1080
1320
1950
n/a
5800
460
Device Ratings & Specifications
Note#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.