© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/14/17
Metal-Oxide Varistors (MOVs)
Radial Lead Varistors > TMOV
®
25S Varistor Series
Description
Features
• RoHS Compliant
and Lead-free
• Wave solderable
• Standard Operating
Voltage Range
Compatible with
Common AC Line
Voltages (115VAC
to 750VAC
• High peak surge current
rating up to 20kA at
single 8/20µS impulse
• Standard lead form
and spacing option
• -55°C to +85°C operating
temperature range
Agency Approvals
Applications
•
SPD Products
• AC Panel Protection Modules
• AC/DC power supplies
• UPS (Uninterruptible Power Supply)
Agency Agency Approval Agency File Number
UL1449 E320116
IEC-CECC Spec:
QC42201-C001,
QC42201-A001,
IEC 60950-1 (Annex Q)
E1274/F
IEC 61051-1,
IEC 61051-2,
IEC 60950-1 (Annex Q)
40021525
TMOV
®
25S
Varistor Series
Metal Oxide Varistors (MOVs) are rated for specific AC line
operating voltages, and exceeding these limits through the
application of a sustained abnormal over-voltage condition
could result in overheating and damage to the MOV.
The Littelfuse TMOV
®
25S Varistor Series was designed to
address this condition in a single integrated package.
The TMOV
®
25S Varistor Series incorporates a patented
integrated thermally responsive element within the body
of the device which will open-circuit the varistor in case of
overheating due to the abnormal over-voltage events.
The TMOV
®
25S Varistor Series meets the surge suppressor
component recognition requirements of UL1449 3rd
edition for both cord connected and permanently
connected SPD end products.
RoHS
Additional Information
Datasheet
Samples
Resources
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 09/14/17
Metal-Oxide Varistors (MOVs)
Radial Lead Varistors > TMOV
®
25S Varistor Series
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart.
TMOV
®
25S
Varistor Series
Units
Continous:
AC Voltage Range (V
M(AC)RMS
) 115 to 750 V
Transient:
Peak Pulse Current (I
TM
)
For 8x20μs 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 (αV) of Clamping Voltage (V
C
) at Specified Test Current <0.01 %/°C
Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 2,500 V
Thermal Protection Isolation Voltage Capability (when operated)
*See notes under Device Ratings & Specifications section for more information
600* V
COATING Insulation Resistance 1,000 MΩ
2 Leaded Device -
Without Indicator Lead
3 Leaded Device -
With Indicator Lead Option
Model
Size Disc
Diameter
(mm)
Maximum Rating (85°C) Specifications (25 °C)
Continuous Transient
Varistor
Voltage at
1mA Test
Current
Clamping
Voltage at
100A Current
8/20μs
Typical
Capacitance
(f=1MHz)
AC
Volts
DC
Volts
Energy
2ms
Peak
Current
8/20μs
Part
Number
Branding
Part
Number
Branding
V
M(AC)RMS
V
M(DC)
W
TM
I
TM
1 ×
Pulse
V
N(DC)
Min
V
N(DC)
Max
V
C
C
(V) (V) (J) (A) (V) (V) (pF)
TMOV25SP115E P25T115E TMOV25SP115M P25T115M 25 115 150 170 20000 162 198 295 3200
TMOV25SP130E P25T130E TMOV25SP130M P25T130M 25 130 170 190 20000 184.5 225.5 335 2800
TMOV25SP140E P25T140E TMOV25SP140M P25T140M 25 140 180 210 20000 198 242 355 2500
TMOV25SP150E P25T150E TMOV25SP150M P25T150M 25 150 200 220 20000 216 264 390 2300
TMOV25SP175E P25T175E TMOV25SP175M P25T175M 25 175 225 250 20000 243 297 450 1900
TMOV25SP200E P25T200E TMOV25SP200M P25T200M 25 200 265 270 20000 283 345 530 1700
TMOV25SP230E P25T230E TMOV25SP230M P25T230M 25 230 300 300 20000 324 396 585 1500
TMOV25SP250E P25T250E TMOV25SP250M P25T250M 25 250 320 330 20000 351 429 640 1400
TMOV25SP275E P25T275E TMOV25SP275M P25T275M 25 275 350 350 20000 387 473 700 1250
TMOV25SP300E P25T300E TMOV25SP300M P25T300M 25 300 385 370 20000 423 517 765 115 0
TMOV25SP320E P25T320E TMOV25SP320M P25T320M 25 320 420 390 20000 459 561 825 1080
TMOV25SP385E P25T385E TMOV25SP385M P25T385M 25 385 505 430 20000 558 682 1010 900
TMOV25SP420E P25T420E TMOV25SP420M P25T420M 25 420 560 460 20000 612 748 110 0 820
TMOV25SP440E P25T440E TMOV25SP440M P25T440M 25 440 585 470 20000 643.5 786.5 1160 790
TMOV25SP460E P25T460E TMOV25SP460M P25T460M 25 460 615 490 20000 675 825 1220 750
TMOV25SP510E P25T510E TMOV25SP510M P25T510M 25 510 670 520 20000 738 902 1335 680
TMOV25SP550E P25T550E TMOV25SP550M P25T550M 25 550 74 5 550 20000 819 1001 1475 630
TMOV25SP625E P25T625E TMOV25SP625M P25T625M 25 625 825 600 20000 900 110 0 1625 550
TMOV25SP750E P25T750E TMOV25SP750M P25T750M 25 750 970 670 20000 1080 1320 1950 460
Device Ratings & Specifications
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.
Notes:
Average power dissipation of transients should not exceed 1.5 watts.