Ceramic transient voltage suppressors
SMD multilayer varistor, E series
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CT1812S14BAUTOE2G2
B72580E3140S272
2012-11-07
1
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PPD ML PD
2012-11-07
1
Dr. Mandoky-Lovas
Dr. Dernovsek
Hr. Schlauer
New datasheet for E series
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72580E3140S272
CT1812S14BAUTOE2G2
EPCOS AG 2012. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72580E3140S272
CT1812S14BAUTOE2G2
Description
The E series multilayer ceramic varistors has been developed to protect automotive
electronic circuits against transient overvoltages, such as electrostatic discharges and surge
currents.
Features
Reliable ESD protection up to 30 kV acc. to IEC 61000-4-2
High energy absorption capability
Low leakage current
No temperature derating up to 150 °C
High life time robustness
Stable protection level
RoHS-compatible, lead-free
Qualified based on AEC-Q200
PSpice simulation models available
Designation system
CT
1812
S...B
14
AUTO
E2
G2
Chip
with
three-layer-termination
(Ag/Ni/Sn)
Dimensions of the device
18
x
12
(length x width in 1/100 inch)
Special
tolerance
B
of the varistor voltage
Maximum RMS operating voltage
Suited for
AUTOmotive
application
Increased energy handling capability
Taped version, cardboard tape, 13" reel (3000 pcs./ reel)
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 14
2012-11-07
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72580E3140S272
CT1812S14BAUTOE2G2
Electrical data
Maximum operating voltage
RMS voltage
DC voltage
Varistor voltage (@ 1 mA, 25 °C)
Maximum clamping voltage (@ 5 A)
Maximum leakage current (@ 16 V, 25 °C)
Typical leakage current (@ 14 V, 25 °C)
Maximum average power dissipation
Maximum surge current (8/20 µs)
Maximum energy absorption (2 ms)
Load dump
Jump-start
Capacitance (@ 1 kHz, 1 V, 25 °C; typical)
Response time
Operating temperature
Storage temperature (mounted parts)
V
RMS
V
DC
= 14 V
= 16 V
V
V
= 22.0 … 27.0 V
V
clamp,max
= 40 V
I
leak,max
= 10 µA
I
leak
= 3 µA
P
diss,max
= 15 mW
I
surge,max
= 1 x 800 A
= 2400 mJ
W
max
W
LD
V
jump
C
typ
<0.5 ns
= 10 x 12 J
= 24.5 V, 5 min.
= 7 nF
–55 ... +150 °C
–55 ... +150 °C
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 14
2012-11-07
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72580E3140S272
CT1812S14BAUTOE2G2
V/I characteristics
Derating curves
10
4
i
max
t
r
5
1x
2
10
5
10 2
10
3
10
2
4
5
10
A
i
max
3
10
10
10
1
10
6
5
10
0
10
5
100
5
1000
5 µs
10000
t
r
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 14
2012-11-07
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72580E3140S272
CT1812S14BAUTOE2G2
Temperature derating
The specified ratings for
I
max
, I
surge,max
and P
diss,max
are valid up to 150 °C.
For operation above 150 °C we recommend the below derating.
Dimensional drawing
w
h
k
MLV0031-M
Dimensions in mm
Case size
1812
l
4.5 ±0.4
w
3.2 ±0.30
h
2.5 max
k
0.25 … 1.00
Recommended solder pad layout
A
Dimensions in mm
Case size
1812
C
A
3.60
B
1.50
C
3.00
MLV0034-P
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 14
B
2012-11-07
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