V18AUMLA1210A Datasheet, PDF (4/7 Pages) Littelfuse – Surface Mount Multilayer Varistors (MLVs) AUML Series

Varistor Products
Surface Mount Multilayer Varistors (MLVs) > AUML Series
AUML Load Dump Pulsing over a Temperature Range of
-55ºC to +125ºC
V(10mA)
35
30
25
2220 = 25J
1812 = 6J
1210 = 3J
20
15
10
5
0
0
1
2
3
4
5
6
78
9 10 11 12
Figure 6
# OF LOAD DUMPS
Repetitive Load Dump Pulsing at Rated Energy
V(10mA)
35
30
25
20
15
10
5
0
0
50
Figure 7
100 150
2220 = 25J
200 250 300 350
# OF LOAD DUMPS
1812 = 6J
1210 = 3J
1,000
2,000
Repetitive Energy Testing of V18AUMLA2220
at an Energy Level of 2 Joules
V AT 10mA
100
Explanation of Terms
Maximum
Continuous
DC
Working
Voltage
(*V
.
) _%$ +
5IJT
JT
UIF
NBYJNVN
DPOUJOVPVT
%$
WPMUBHF
XIJDI
NBZ

be applied, up to the maximum operating temperature
$
UP
UIF
.-
TVQQSFTTPS
5IJT
WPMUBHF
JT
VTFE
BT
UIF

reference test point for leakage current and is always less
than the breakdown voltage of the device.
Load Dump Energy Rating *W_-%+
This is the actual energy the part is rated to dissipate
VOEFS
-PBE
%VNQ
DPOEJUJPOT
OPU
UP
CF
DPOGVTFE
XJUI
UIF

TPVSDF
FOFSHZ
PG
B
-PBE
%VNQ
UFTU
TQFDJmDBUJPO 

Maximum Clamping Voltage *V_C+
This is the peak voltage appearing across the suppressor
when measured at conditions of specified pulse current
BOE
TQFDJmFE
XBWFGPSN
μT 
*U
JT
JNQPSUBOU
UP
OPUF

that the peak current and peak voltage may not necessarily
be coincidental in time.
Leakage Current *I_L+
In the nonconducting mode, the device is at a very
IJHI
JNQFEBODF
BQQSPBDIJOH
^Ω at its rated working
WPMUBHF
BOE
BQQFBST
BT
BO
BMNPTU
PQFO
DJSDVJU
JO
UIF

system. The leakage current drawn at this level is very
low (<25μ"
BU
BNCJFOU
UFNQFSBUVSF
BOE
VOMJLF
UIF

;FOFS
EJPEF
UIF
NVMUJMBZFS
574
IBT
UIF
BEEFE
BEWBOUBHF

that, when operated up to its maximum temperature,
JUT
MFBLBHF
DVSSFOU
XJMM
OPU
JODSFBTF
BCPWF
μA.
Nominal Voltage *V_/%$+
This is the voltage at which the AUML enters its
conduction state and begins to suppress transients.
In the automotive environment this voltage is
EFmOFE
BU
UIF
N"
QPJOU
BOE
IBT
B
NJOJNVN
(V
/
%$
.*/
^BOE
NBYJNVN

7_/
%$
."9
^{WPMUBHF
TQFDJmFE}
V18AUMLA2220
10
1000
Figure 8
2000
3000
4000
5000
NUMBER OF PULSES
6000
7000
AUML Varistor Series
Revision: September 14, 2010
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/AUML.html for current information.