135
04/02
Construction
I
Multilayer technology
I
Termination: nickel barrier (CT series) or silver palladium (CN series)
I
No plastic or epoxy encapsulation assures better than UL 94 V-0 flammability rating
Features
I
Sizes 0603 ... 2220
I
High energy absorption,
particularly in case of load dump
I
Stable protection level, low leakage current
I
High resistance to cyclic temperature stress
I
Wide range of operating temperature
I
Low inductance (suitable for ESD protection)
I
PSpice models
I
Bidirectional clamping
Taping
I
Supply on 8/12-mm tape, for tape dimensions see pages 154/155,
for reel dimensions and packing units see page 157, chapter "SMD Varistors: Taping"
Type designation
Detailed description of coding system on page 39, chapter "General Technical Information"
1) For mounted parts (storage conditions for unused parts on reel see page 38, chapter "General Technical Information")
General technical data
Climatic category
LCT
UCT
Damp heat, steady state
(93 % r.h., 40
C)
55/125/56
55
C
+ 125
C
56 days
in accordance with IEC 60068-1
in accordance with IEC 60068-2-3
Operating temperature
55 ... + 125
C
in accordance with CECC 42 000
Storage temperature
1)
55 ... + 150
C
Response time
< 0,5 ns
Solderability
235
C, 2 s
in accordance with IEC 60068-2-58
Resistance to soldering heat 260
C, 10 s
in accordance with IEC 60068-2-58
SIOV-CT 1210 S 14 B AUTO G
EPCOS metal oxide varistor
Design
Size (nominal)
Taping mode
Automotive varistor
Specifies special tolerance (B)
Special tolerance
of varistor voltage
Max. AC operating voltage
SMD Varistors
MLV; Automotive Series
136
04/02
Notes
I
If the maximum loads specified for load dump and jump start are fully utilized, subsequent
polarity reversal of the AUTO varistors is inadmissible.
I
If the load remains under the maximum ratings, polarity reversal may be admissible.
Contact EPCOS for consultancy on this kind of problem.
I
Load dump or jump start can decrease the varistor voltage in load direction by max. 15 %.
I
Load dump: min. time of energy input 40 ms, interval 60 s.
(The load dump time constant t
d
differs from the time constant of the energy input)
Maximum ratings (T
A
= 125
C)
Type
SIOV-
Ordering code
V
RMS
V
V
DC
V
i
max
8/20
ms
A
W
max
(2 ms)
J
P
max
W
W
LD
(10x)
J
12-V supply systems
CT0603S14BAUTOG
B72500T1140S260
14
16
30
0,2
0,003
--
CT0805S14BAUTOG
B72510T1140S262
14
16
120
0,3
0,008
1,0
CT1206S14BAUTOG
B72520T1140S262
14
16
200
0,6
0,008
1,5
CT1210S14BAUTOG
B72530T1140S262
14
16
400
1,6
0,010
3,0
CT1812S14BAUTOG
B72580T1140S262
14
16
800
2,4
0,015
6,0
CT2220S14BAUTOG
B72540T1140S262
14
16
1200
5,8
0,030
12,0
CT2220S14BAUTOE2G2 B72540T3140S272
14
16
1200
5,8
0,030
25,0
24-V supply systems
CT2220K25AUTOE2G2
B72540T3250K072
25
31
1200
9,6
0,030
25,0
CT2220K30AUTOG
B72540T1300K062
30
34
1200
12,0
0,030
12,0
CT2220K30AUTOE2G2
B72540T3300K072
30
34
1200
12,0
0,030
25,0
Characteristics (T
A
= 25
C)
Type
SIOV-
V
Jump
(5 min)
V
V
v
(1 mA)
V
DV
v
(1 mA)
%
Max. clamping
voltage
C
typ
(1 kHz)
nF
L
typ
nH
Der.
curve
Page
V/I
char.
Page
v
V
i
A
12-V supply systems
CT0603S14BAUTOG
24,5
22
+23/0 42
1,0
0,12
1,0
238
272
CT0805S14BAUTOG
24,5
22
+23/0 42
1,0
0,4
1,5
239
272
CT1206S14BAUTOG
24,5
22
+23/0 40
1,0
0,8
1,8
240
272
CT1210S14BAUTOG
24,5
22
+23/0 40
2,5
1,7
1,8
242
272
CT1812S14BAUTOG
24,5
22
+23/0 40
5,0
5,6
2,5
244
272
CT2220S14BAUTOG
24,5
22
+23/0 40
10,0
9,5
3,0
245
272
CT2220S14BAUTOE2G2 24,5
22
+23/0 40
10,0
15,0
3,0
245
272
24-V supply systems
CT2220K25AUTOE2G2
40,0
39
10
65
10,0
10,0
3,0
245
271
CT2220K30AUTOG
45,0
47
10
77
10,0
4,0
3,0
245
271
CT2220K30AUTOE2G2
45,0
47
10
77
10,0
10,0
3,0
245
271
Automotive Nickel Barrier Termination (available upon request)
SMD Varistors
137
04/02
Notes
I
If the maximum loads specified for load dump and jump start are fully utilized, subsequent
polarity reversal of the AUTO varistors is inadmissible.
I
If the load remains under the maximum ratings, polarity reversal may be admissible.
Contact EPCOS for consultancy on this kind of problem.
I
Load dump or jump start can decrease the varistor voltage in load direction by max. 15 %.
I
Load dump: min. time of energy input 40 ms, interval 60 s.
(The load dump time constant t
d
differs from the time constant of the energy input)
Maximum ratings (T
A
= 125
C)
Type
SIOV-
Ordering code
V
RMS
V
V
DC
V
i
max
8/20
ms
A
W
max
(2 ms)
J
P
max
W
W
LD
(10x)
J
12-V supply systems
CN0603S14BAUTOG
B72500V1140S260
14
16
30
0,2
0,003
--
CN0805S14BAUTOG
B72510V1140S262
14
16
120
0,3
0,008
1,0
CN1206S14BAUTOG
B72520V1140S262
14
16
200
0,6
0,008
1,5
CN1210S14BAUTOG
B72530V1140S262
14
16
400
1,6
0,010
3,0
CN1812S14BAUTOG
B72580V1140S262
14
16
800
2,4
0,015
6,0
CN2220S14BAUTOG
B72540V1140S262
14
16
1200
5,8
0,030
12,0
CN2220S14BAUTOE2G2 B72540V3140S272
14
16
1200
5,8
0,030
25,0
24-V supply systems
CN2220K25AUTOE2G2
B72540V3250K072
25
31
1200
9,6
0,030
25,0
CN2220K30AUTOG
B72540V1300K062
30
34
1200
12,0
0,030
12,0
CN2220K30AUTOE2G2
B72540V3300K072
30
34
1200
12,0
0,030
25,0
Characteristics (T
A
= 25
C)
Type
SIOV-
V
Jump
(5 min)
V
V
v
(1 mA)
V
DV
v
(1 mA)
%
Max. clamping
voltage
C
typ
(1 kHz)
nF
L
typ
nH
Der.
curve
Page
V/I
char.
Page
v
V
i
A
12-V supply systems
CN0603S14BAUTOG
24,5
22
+23/0 42
1,0
0,12
1,0
238
272
CN0805S14BAUTOG
24,5
22
+23/0 42
1,0
0,4
1,5
239
272
CN1206S14BAUTOG
24,5
22
+23/0 40
1,0
0,8
1,8
240
272
CN1210S14BAUTOG
24,5
22
+23/0 40
2,5
1,7
1,8
242
272
CN1812S14BAUTOG
24,5
22
+23/0 40
5,0
5,6
2,5
244
272
CN2220S14BAUTOG
24,5
22
+23/0 40
10,0
9,5
3,0
245
272
CN2220S14BAUTOE2G2 24,5
22
+23/0 40
10,0
15,0
3,0
245
272
24-V supply systems
CN2220K25AUTOE2G2
40,0
39
10
65
10,0
10,0
3,0
245
271
CN2220K30AUTOG
45,0
47
10
77
10,0
4,0
3,0
245
271
CN2220K30AUTOE2G2
45,0
47
10
77
10,0
10,0
3,0
245
271
Automotive Silver Palladium Termination
SMD Varistors
138
04/02
MLV; Automotive Series
SMD Varistors
Dimensions
Termination: nickel barrier (CT) or silver palladium (CN)
Type
I
mm
b
mm
h
mm
k
mm
SIOV-CT/CN0603
1,6
0,15
0,80
0,10
0,9 max.
0,1 ... 0,4
SIOV-CT/CN0805
2,0
0,20
1,25
0,15
1,4 max.
0,13 ... 0,75
SIOV-CT/CN1206
3,2
0,30
1,60
0,20
1,7 max.
0,25 ... 0,75
SIOV-CT/CN1210
3,2
0,30
2,50
0,25
1,7 max.
0,25 ... 0,75
SIOV-CT/CN1812
4,5
0,40
3,20
0,30
2,5 max.
0,25 ... 1,0
SIOV-CT/CN2220
5,7
0,40
5,00
0,40
2,5 max.
0,25 ... 1,0
Recommended solder pad layout
Type
A
mm
B
mm
C
mm
D
mm
SIOV-CT/CN0603
1,0
1,0
1,0
3,0
SIOV-CT/CN0805
1,4
1,2
1,0
3,4
SIOV-CT/CN1206
1,8
1,2
2,1
4,5
SIOV-CT/CN1210
2,8
1,2
2,1
4,5
SIOV-CT/CN1812
3,6
1,5
3,0
6,0
SIOV-CT/CN2220
5,5
1,5
4,2
7,2
VAR0406-M
b
h
k
Weight: < 0,2 g
Termination acc. CECC 32101-801
VAR0391-D
B
B
C
D
A
A
Herausgegeben von EPCOS AG
Unternehmenskommunikation, Postfach 80 17 09, 81617 Mnchen, DEUTSCHLAND
( ++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Vervielfltigung, Verffentlichung, Verbreitung und Verwertung dieser Broschre und ihres Inhalts ohne aus-
drckliche Genehmigung der EPCOS AG nicht gestattet.
Bestellungen unterliegen den vom ZVEI empfohlenen Allgemeinen Lieferbedingungen fr Erzeugnisse und Leistungen der Elek-
troindustrie, soweit nichts anderes vereinbart wird.
Diese Broschre ersetzt die vorige Ausgabe.
Fragen ber Technik, Preise und Liefermglichkeiten richten Sie bitte an den Ihnen nchstgelegenen Vertrieb der EPCOS AG
oder an unsere Vertriebsgesellschaften im Ausland. Bauelemente knnen aufgrund technischer Erfordernisse Gefahrstoffe ent-
halten. Ausknfte darber bitten wir unter Angabe des betreffenden Typs ebenfalls ber die zustndige Vertriebsgesellschaft ein-
zuholen.
Published by EPCOS AG
Corporate Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY
( ++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without
EPCOS' prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics
Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed.
This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representa-
tives.
Due to technical requirements components may contain dangerous substances. For information on the type in question please
also contact one of our Sales Offices.
PDF 
ZIP