TMOV25SP750M Littelfuse Inc, TMOV25SP750M Datasheet - Page 181

• Manufacturer Part Number: TMOV25SP750M
• Description: TMOV VARISTOR PB FREE 25S
• Manufacturer: Littelfuse Inc
• Series: iTMOV®r

Specifications of TMOV25SP750M

• Varistor Voltage: 1320V (1.32kV)
• Current-surge: 20kA
• Number Of Circuits: 1
• Maximum Ac Volts: 750VAC
• Energy: 670J
• Package / Case: Disc 25mm 3-Lead
• Suppressor Type: Varistor
• Peak Surge Current @ 8/20µs: 20000A
• Varistor Case: 25mm DISC
• Clamping Voltage Vc Max: 1950V
• Peak Energy (10/1000us): 670J
• Voltage Rating Vdc: 1320V
• Voltage Rating Vac: 750V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Maximum Dc Volts: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/dhb34.html for current information.
Power Dissipation Ratings
Should transients occur in rapid succession, the average
power 100 dissipation result is simply 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 must be derated as shown in above.
Maximum Clamping Voltage
Figure 1
Figure 3
Voltage -
VOLTS
V441
V481
V421
10000
1000
100
0.001
Maximum Clamping Voltage
DHB34 Series
110 to 750V AC Rating
V511
0.01
Current - AMPS
V551
0.1
V571
V391
1
V351 V331 V321
10
V661
100
V681
V301
TA = -55 C to 85C
V271
V751
Varistor Products
1000
Industrial High Energy Terminal Varistors > DHB34 Series
V251 V201 V181
V141
10000
V151
V131
V111
100000
Revision: November 5, 2009
177
NOTE: If pulse ratings are exceeded, a shift of V
+/-10% could result. This type of shift, which normally results in a decrease of V
result in the device not meeting the original published specifications, but it does not
prevent the device from continuing to function, and to provide ample protection.
Peak Pulse Current Test Waveform
Repetitive Surge Capability
Figure 2
Figure 4
50,000
20,000
10,000
5,000
2,000
1,000
0
T = Time from 10% to 90% of Peak
T
T
Example - For an 8/20 μs Current Waveform:
500
200
100
1
1
2
50
20
10
O
= Virtual Origin of Wave
= Rise Time = 1.25 x T
= Decay Time
100
1
20
90
50
10
8μs = T
20μs = T
10
10
10
10
INDEFINITE
2
2
3
4
1
1
= Rise Time
2
= Decay Time
T
100
T
1
IMPULSE DURATION ( μs)
T
2
N(DC)
10
5
(at specified current) of more than
V131DHB34 - V751DHB34
10
1,000
6
DISC SIZE 34mm
TIME
DHB34 Varistor Series
10,000
N(DC)
, may