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Surface Mount Multilayer Varistors (MLVs) > AUML Series
Device Ratings and Speci?cations
Maximum Ratings (125 oC )
Speci?cations (25 oC )
Maximum
Jump Start
Load Dump
Nominal Varistor Voltage
Maximum
Maximum Clamping
Part Number
Continuous
DC Voltage
Voltage
(5 Min)
Energy
(10 Pulses)
at 10mA
DC Test Current
Standby Leakage
(at 13V DC)
Voltage (V C ) at
Test Current (8/20 μ s)
V
V
W
V
Min V
Max I L
V C
I
(V)
18
(V)
24.5
(J)
1.5
(V)
23
(V)
32
( μ A)
(V)
(A)
1.5
18
24.5
23
32
1.5
V18AUMLA1812
18
24.5
23
32
18
24.5
25
23
32
update.
NOTES:
Current, Energy and Power Derating Curve
times the number of pulses per second. The power so
developed must be within the speci?cations shown on the
device. Certain parameter ratings must be derated at high
temperatures as shown below.
Peak Pulse Current Test Waveform for Clamping Voltage
100
50
0
100
90
80
70
O 1
Figure 2
T
T 1
T 2
TIME
60
50
40
30
20
1
T 1
T 2
10
Example
μ
Figure 1
0
-55
50
60
70 80 90 100 110 120
AMBIENT TEMPERATURE ( o C)
130
140 150
8 μ s = T 1
μ s = T 2
Maximum Leakage Current/Clamping Voltage Curve for
AUML Series at 25oC
Typical V-I Characteristics of the V18AUMLA2220 at -40oC,
25oC, 85oC and 125oC
MAXIMUM LEAKAGE
MAXIMUM CLAMPING VOLTAGE
100
100
1210/1206
1812
2220
1210/1206
10
-40 oC
10
1812
25 oC
2220
85 oC
125 oC
1
10μA
Figure 3
100μA
1mA
10mA 100mA
CURRENT
1A
10A
100A
1
1μA
Figure 4
10μA
100μA
1mA
10mA
CURRENT
100mA
1A
10A
100A
1000A
AUML Varistor Series
Revision: September 14, 2010
?2010 Littelfuse, Inc.
Speci?cations are subject to change without notice.
Please refer to www.littelfuse.com/series/AUML.html for current information.
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