Ceramic transient voltage suppressors
SMD multilayer varistor, E series
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CT0805S20ACC2G2
B72510E9200S172
2012-02-15
1
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PPD ML PD
2012-02-15
1
Fr. Dr. Mandoky-Lovas
Dr. Dernovsek
Hr. Schlauer
xxxx
xxxx
xxxx
xxxx
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72510E9200S172
CT0805S20ACC2G2
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
B72510E9200S172
CT0805S20ACC2G2
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
0805
S...A
20
CC2
G2
Chip
with
three-layer-termination
(Ag/Ni/Sn)
Dimensions of the device
08
x
05
(length x width in 1/100 inch)
Special
tolerance
A
of the varistor voltage
Maximum RMS operating voltage
Controlled capacitance,
version
2
Taped version, blister tape, 13" reel (12000 pcs./ reel)
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 14
2012-02-15
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72510E9200S172
CT0805S20ACC2G2
Electrical data
Max. operating voltage
RMS voltage
DC voltage
Varistor voltage (@ 1 mA, 25 °C)
Maximum leakage current (@ 22 V, 25 °C)
Typical leakage current (@ 28 V, 25 °C)
Maximum clamping voltage (@ 1 A)
Maximum average power dissipation
Maximum surge current (8/20 µs)
Maximum energy absorption (2 ms)
Capacitance (@ 1 kHz, 1 V, 25 °C; typical)
Response time
Operating temperature
Storage temperature (mounted parts)
V
RMS
V
DC
V
V
I
leak,max
I
leak
V
clamp,max
P
diss,max
I
surge,max
W
max
= 20 V
= 26 V
= 29.7 … 39.6 V
= 10 µA
= 1 µA
= 64 V
= 5 mW
= 1 x 80 A
= 400 mJ
C
typ
= 220 pF
<0.5 ns
–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
2012-02-15
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72510E9200S172
CT0805S20ACC2G2
V/I characteristics
200
V
v
100
80
60
40
VAR9085B
20
10
8
6
4
2
1
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
i
A 10
2
Derating curves
10
i
max
10
2
3
A
t
r
i
max
5
1x
10
1
10
10
2
5
10
0
10 10
6
10
3
10
2
4
5
5
10
-1
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
2012-02-15
Ceramic transient voltage suppressors
SMD multilayer varistor, E series
B72510E9200S172
CT0805S20ACC2G2
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
0805
l
2.0 ±0.20
w
1.25 ±0.15
h
1.4 max.
k
0.13 … 0.75
Recommended solder pad layout
A
Dimensions in mm
Case size
0805
C
A
1.40
B
1.20
C
1.00
MLV0034-P
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 14
B
2012-02-15
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