TMOV25SP385M Littelfuse Inc, TMOV25SP385M Datasheet - Page 186
![TMOV VARISTOR PB FREE 25S](/photos/22/0/220041/4684176_sml.jpg)
TMOV25SP385M
Manufacturer Part Number
TMOV25SP385M
Description
TMOV VARISTOR PB FREE 25S
Manufacturer
Littelfuse Inc
Series
iTMOV®r
Specifications of TMOV25SP385M
Varistor Voltage
682V
Current-surge
20kA
Number Of Circuits
1
Maximum Ac Volts
385VAC
Energy
430J
Package / Case
Disc 25mm 3-Lead
Suppressor Type
Varistor
Peak Surge Current @ 8/20µs
20000A
Varistor Case
25mm DISC
Clamping Voltage Vc Max
1010V
Peak Energy (10/1000us)
430J
Voltage Rating Vdc
682V
Voltage Rating Vac
385V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Maximum Dc Volts
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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NOTE: Average power dissipation of transients should not exceed 2.5W for CA60 discs.
CA Varistor Series
Device Branding
CA Series Ratings & Specifications
Power Dissipation Ratings
Should transients occur in rapid succession, the average power
dissipation result is the energy (watt-seconds) per pulse times
the number of pulses per second. The power so developed must
be within the specifications shown on the Device Ratings and
Specifications table for the specific device. Furthermore, the
operating values need to be derated at high temperatures as
shown in above. Because varistors can only dissipate a relatively
small amount of average power they are, therefore, not suitable
for repetitive applications that involve substantial amounts of
average power dissipation.
Figure 1
V251CA60
V271CA60
V321CA60
V421CA60
V481CA60
V571CA60
V661CA60
V751CA60
V881CA60
V142CA60
V202CA60
V242CA60
V282CA60
V511CA60
V112CA60
V172CA60
Number
100
Part
90
80
70
60
50
40
30
20
10
0
-55
50
60
(mm)
Size
AMBIENT TEMPERATURE (
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
70
High Energy Industrial Disc Varistors > CA Series
80
90
V
1400
2000
2400
2800
1100
1700
V
250
275
320
420
480
510
575
660
750
880
(V)
M(AC)
Continuous
RMS
100 110 120 130 140 150
Maximum Rating (85°C)
V
1400
1750
2150
2500
3000
3500
1150
330
369
420
560
640
675
730
850
970
(V)
V
M(DC)
o
DC
C)
Energy
10000
(2ms)
5000
6000
1500
1600
1800
2100
2300
2600
3200
3800
7500
8800
1100
W
880
950
(J)
TM
Transient
Revision: November 5, 2009
Varistor Products
(8/20μs)
Current
50000
50000
50000
70000
70000
70000
70000
70000
70000
70000
70000
70000
70000
70000
70000
70000
Peak
182
(A)
I
TM
Peak Pulse Current Test Waveform
Figure 2
Varistor Voltage at 1mA
1080
1290
1620
2020
2500
2970
3510
4230
Min
354
389
462
670
735
805
940
610
(V)
0
T = Time from 10% to 90% of Peak
T
T
Example - For an 8/20 μs Current Waveform:
1
1
2
O
100
= Virtual Origin of Wave
= Rise Time = 1.25 x T
= Decay Time
DC Test Current
90
50
10
1
8μs = T
20μs = T
1200
1500
1800
2200
2700
3300
3900
4700
V
1050
390
430
510
680
750
820
910
(V)
NOM
Please refer to www.littelfuse.com/series/ca.html for current information.
1
= Rise Time
2
= Decay Time
T
T
Specifications (25°C)
1
1000
1320
1650
2060
2550
3030
3630
4290
5170
Max
1160
429
473
561
825
748
910
(V)
T
2
Specifications are subject to change without notice.
Volt Vc at 200A
Max Clamping
(8/20μs)
Current
1060
1300
1420
1640
1880
2340
2940
3600
4300
5200
6200
7400
1160
620
680
760
(A)
V
C
TIME
Capacitance
©2009 Littelfuse, Inc.
f = 1MHz
Typical
10000
9000
6000
5000
4000
7500
5500
4500
3500
2700
2200
1800
1500
1200
1000
(pF)
800
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