TMOV25SP385M Littelfuse Inc, TMOV25SP385M Datasheet - Page 112

• 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

V130LA5C(P) – V460LA10C(P)
C-III Varistor Series
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. The operating values of a MOV need to be derated
at high temperatures as shown above. Because varistors
only dissipate a relatively small amount of average power
they are not suitable for repetitive applications that involve
substantial amounts of average power dissipation.
Current Energy and Power Derating Curve
Transient V-I Characteristics Curves
Maximum Clamping Voltage for 10mm Parts
Figure 1
Figure 3
10,000
1,000
100
100
90
80
70
60
50
40
30
20
10
0.001
0
-55
V230LA10C(P)
V2 0LA10C(P)
50
0.01
MODEL SI E = 10mm
60
V27 LA10C(P)
70
AMBIENT TEMPERATURE (
0.1
V130LA C(P)
80
V300LA10C(P)
Peak Amperes (A)
90
1
V320LA10C(P)
100
V 60LA10C(P)
V1 0LA C(P)
10
110
o
120
C)
100
Radial Lead Varistors > C-III series
V1 0LA C(P)
V17 LA C(P)
130
1000
140 150
10000
Revision: November 5, 2009
Varistor Products
108
V130LA5C(P)-V320LA10C(P)
Peak Pulse Current Test Waveform
Pulse Rating Curves
Repetitive Surge Capability for 10mm Parts
Figure 2
10,000
Figure 4
1,000
100
10
1
10
10
10
10
10
0
T = Time from 10% to 90% of Peak
T
T
Example - For an 8/20 μs Current Waveform:
1
2
1
2
3
1
2
= Virtual Origin of Wave
O
= Rise Time = 1.25 x T
= Decay Time
100
1
90
50
10
8μs = T
20μs = T
Please refer to www.littelfuse.com/series/c-iii.html for current information.
1
= Rise Time
2
= Decay Time
T
100
T
1
Surge Impulse Duration ( s)
MODEL SI E = 10mm
T
2
Specifications are subject to change without notice.
1,000
TIME
©2009 Littelfuse, Inc.
10,000