V18AUMLA1206_06 Datasheet, PDF (2/9 Pages) Littelfuse – Multilayer Transient Voltage Surge Suppressor

Multilayer Transient Voltage Surge Suppressor
RoHS AUML Varistor Series
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous:
Steady State Applied Voltage:
AUML SERIES
DC Voltage Range (VM(DC)). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Transient:
Load Dump Energy, (WLD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 to 25
Jump Start Capability (5 minutes), (VJUMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24.5
Operating Ambient Temperature Range (TA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125
Storage Temperature Range (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 150
Temperature Coefficient (αv) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
UNITS
V
J
V
O_C
O_C
%/^OC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device
at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Device Ratings and Specifications
MAXIMUM RATINGS (125^oC)
SPECIFICATIONS (25^oC)
MAXIMUM
CONTINUOUS
DC VOLTAGE
JUMP
START
VOLTAGE
(5 MIN)
LOAD DUMP
ENERGY
(10 PULSES)
NOMINAL VARISTOR
VOLTAGE AT 10mA
DC TEST CURRENT
MAXIMUM
STANDBY
LEAKAGE
(AT 13VDC)
MAXIMUM CLAMPING
VOLTAGE (V_C)
AT TEST CURRENT
(8/20 µs)
PART
NUMBER
V_M(DC)
(V)
V_JUMP
(V)
W_LD
(J)
V_N(DC)
MIN
(V)
V_N(DC)
MAX
(V)
I_L
( µA)
V_C
I_P
(V)
(A)
V18AUMLA1206
18
24.5
1.5
23
32
50
40
1.5
V18AUMLA1210
18
24.5
3
23
32
50
40
1.5
V18AUMLA1812
18
24.5
6
23
32
100
40
5
V18AUMLA2220
18
24.5
25
23
32
200
40
10
For automotive 24V and 42V applications please contact your Littelfuse representative or visit www.littelfuse.com for the latest product update.
NOTES:
1. Average power dissipation of transients not to exceed 0.1W, 0.15W, 0.3W and 1W for model sizes 1206, 1210, 1812 and 2220 respectively.
2. Load dump energy rating (into the suppressor) of a voltage transient with a resultant time constant of 115ms to 230ms.
3. Thermal shock capability per Mil-Std-750, Method 1051: -55^oC to 125^oC, 5 minutes at 25^oC, 25 Cycles: 15 minutes at each extreme.
4. For application specific requirements, please contact Littelfuse.
Power Dissipation Ratings
When transients occur in rapid succession, the average power dissipa-
tion 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 Characteristics table for the specific
device. Certain parameter ratings must be derated at high temperatures
as shown in Figure 1.
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE (^oC)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
188
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