TMOV25SP385M Littelfuse Inc, TMOV25SP385M Datasheet - Page 93

• 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

NOTE:
1. Average power dissipation of transients should not exceed 0.25W, 0.4W, 0.6W and 1.0W for 7mm, 10mm, 14mm, and 20mm model sizes, respectively.
©2009 Littelfuse, Inc.
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ultramov.html for current information.
Lead–free and RoHS
V10E460P
V14E460P
V20E460P
V20E510P
V10E550P
V14E550P
V20E550P
V10E625P
V14E625P
V20E625P
UltraMOV™ Series Ratings & Specifications
V10E510P
V14E510P
Power Dissipation Ratings
Should transients occur in rapid succession, the average
power dissipation 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.
Current Energy and Power Derating Curve
Number
Figure 1
Compliant Models
Part
100
90
80
70
60
50
40
30
20
10
0
-55
Branding
50
P10V460
P14V460
P20V460
P20V510
P10V550
P14V550
P20V550
P10V625
P14V625
P20V625
P10V510
P14V510
60
AMBIENT TEMPERATURE (
70
V10E460
V14E460
V20E460
V20E510
V10E550
V14E550
V20E550
V10E625
V14E625
V20E625
Number
V10E510
V14E510
Part
80
Standard
Models
90
Branding
100 110
20V460
20V550
20V625
10V460
14V460
10V510
14V510
20V510
10V550
14V550
10V625
14V625
120 130 140 150
Varistor Products
o
Radial Lead Varistors > UltraMOV
C)
RMS
Volts
V
Continuous
460
460
460
510
510
510
550
550
550
625
625
625
(V)
M(AC)
(Continued...)
Volts
V
615
615
670
670
670
825
825
825
615
745
745
745
DC
(V)
Maximum Rating (85°C)
M(DC)
Revision: November 5, 2009
Revision: November 5, 2009
Energy
2ms
W
180
360
165
325
180
360
100
200
400
(J)
90
80
90
89
89
TM
Transient
Peak Pulse Current Test Waveform
Figure 2
10000
10000
10000
10000
Pulse
6000
6000
3500
6000
6000
3500
3500
3500
Peak Current
1 x
(A)
I
TM
8 x 20μs
0
T = Time from 10% to 90% of Peak
T
T
Example - For an 8/20 μs Current Waveform:
1
1
2
= Virtual Origin of Wave
= Rise Time = 1.25 x T
= Decay Time
O
100
Pulse
2500
4500
6500
2500
4500
6500
2500
4500
6500
2500
4500
6500
1
8μs = T
20μs = T
90
50
10
2 x
(A)
I
TM
TM
1
2
1mA DC Test
= Rise Time
V
Min
675
675
675
738
738
738
819
819
819
900
900
900
Series
(V)
Voltage at
= Decay Time
NOM
T
Varistor
Current
T
1
T
V
1001
1001
1001
1100
1100
1100
Max
825
825
825
902
902
902
2
(V)
NOM
Specifications (25°C)
1240
1240
1240
1355
1355
1355
1500
1500
1500
1650
1650
1650
(V)
V
Maximum
Clamping
8 x 20μs
C
Voltage
UltraMOV™ Varistor Series
TIME
100
100
100
100
(A)
25
50
25
50
25
50
25
50
I
PK
f = 1MHz
Capaci-
Typical
tance
(pF)
400
200
300
120
220
350
100
180
160
250
110
90