TMOV25SP385M Littelfuse Inc, TMOV25SP385M Datasheet - Page 166

• 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

Industrial High Energy Thermally Protected Varistors > TMOV34S
TMOV34S
Typical time to open circuit under UL1449 Abnormal
Overvoltage Limited Current Test
Note: The Industrial TMOV
are intended, in conjunction with appropriate enclosure
design, to help facilitate TVSS module compliance to
UL 1449, Section 37.4 (Abnormal Overvoltage Limited
Current Requirements). Under these extreme abnormal
overvoltage conditions, the units will exhibit substantial
heating and potential venting prior to opening. Modules
should be designed to contain this possibility. Application
testing is strongly recommended.
V–I Characteristic Curves for TMOV34S
Figure 1
Figure 4
®
0.1
10
Varistor Series
1
10
V421
Voltage -
VOLTS
V441
V481
10000
1000
100
1mA
100
Maximum Clamping Voltage
TMOV34S series
®
Time s
Series TMOV34S
V511
10mA
Current - AMPS
1000
V551
100mA
V571
®
Varistor
Typical
5A
2.5A
0.5A
0.125A
®
devices
1000
1A
V391
Revision: November 5, 2009
Varistor Products
V351 V331 V321
10A
162
V661
For applications exceeding 85ºC ambient temperature, the peak
surge current and energy ratings must be reduced as shown.
Figure 2
Pulse Rating Curve
Peak Current & Energy Derating Curve
Figure 3
100A
V681
V301
50,000
20,000
10,000
5,000
2,000
1,000
TA = -55 C to 85C
®
100
80
60
40
20
500
200
100
0
50
20
10
V271
-55
Series
20
V751
10
10
10
10
INDEFINITE
1000A
Please refer to www.littelfuse.com/series/tmov34s.html for current information.
2
2
3
4
50
1
V251 V201 V181
60
100
V141
AMBIENT TEMPERATURE (ºC)
10000A
V151
70
IMPULSE DURATION (μs)
V131
80
Specifications are subject to change without notice.
V111
100000A
10
90
5
10
1,000
6
100
110
Hx34
120
©2009 Littelfuse, Inc.
10,000
130