TMOV25SP385M Littelfuse Inc, TMOV25SP385M Datasheet - Page 43

• 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

©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ML.html for current information.
Limit V-I Characteristic for V5.5MLA0402 to V18MLA0402
Figure 3
Limit V-I Characteristic for V3.5MLA0603 to V30MLA0603
Figure 5
Peak Current and Energy Derating Curve
When 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. For applications exceeding 125°C ambient
temperature, the peak surge current and energy ratings
must be derated as shown below.
Figure 1
1000
100
10
10
1
100
μA
10
1μA
100
1
80
60
40
20
0
-55
100
10μA
50
μA
V30MLA0603
V26MLA0603
V18MLA0603
V14MLA0603
60
1mA
AMBIENT TEMPERATURE (
100μA
70
Current (A)
80
10mA
1mA
Current (A)
90
100 110
100mA
10mA
V5.5MLA0402
V18MLA0402
V14MLA0402
V9MLA0402
o
C)
1A
Varistor Products
120 130 140 150
1A
Surface Mount Multilayer Varistors (MLVs) > ML Series
V9MLA0603, V9MLA0603L
V5.5MLA0603, V5.5MLA0603L
V3.5MLA0603
10A
10A
Revision: November 5, 2009
100A
100A
39
Figure 2
Peak Pulse Current Test Waveform for Clamping Voltage
Limit V-I Characteristic for V3.5MLA0805L to V30MLA0805L
Limit V-I Characteristic for V9MLA0402L
Figure 4
Figure 6
1000
100
10
10μA
1
100
10
1μA
1
O
1
0
T = Time from 10% to 90% of Peak
T
T
Example - For an 8/20 μs Current Waveform:
100
50
0
1
1
2
= Virtual Origin of Wave
= Rise Time = 1.25 x T
= Decay Time
100μA
10μA
8μs = T
20μs = T
V30MLA0805L
V26MLA0805L
V18MLA0805L
V14MLA0805L
T
T
1mA
1
1
100μA
2
= Rise Time
= Decay Time
T
2
1mA
Current (A)
10mA
Current (A)
10mA
100mA
1A
V5.5MLA0402L
V9MLA0402L
1A
V5.5MLA0805L
V3.5MLA0805L
V12MLA0805L
10A
V9MLA0805L
ML Varistor Series
10A
100A
TIME
100A