EPCOS CU4032K14AUTOG2 Monolithic; automotive sery Datasheet

SMD Varistors
Monolithic; Automotive Series
Construction
■ Cylindrical varistor element, encapsulated
■ Encapsulation: thermoplast, flame-retardant to UL 94 V-0
■ Termination: tinned copper alloy
Features
■
■
■
■
■
■
■
High energy absorption, particularly in case of load dump
Jump-start strength
Stable protection level, minimum leakage current
High resistance to cyclic temperature stress
Good solderability
Low inductance
PSpice models
Taping
■ 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”
SIOV-CU 4032 K 14 AUTO G2
EPCOS metal oxide varistor
Taping mode
Design
Automotive varistor
Size (nominal)
Tolerance
of varistor voltage
Max. AC operating voltage
General technical data
Climatic category
LCT
UCT
Damp heat, steady state
(93 % r.h., 40 °C)
40/85/56
– 40 °C
+ 85 °C
56 days
in accordance with IEC 60068-1
Operating temperature
– 40 … + 85 °C
in accordance with CECC 42 000
Storage temperature
– 40 … + 125 °C
in accordance with IEC 60068-2-3
Electric strength
³ 2,5 kVRMS
in accordance with CECC 42 000
Insulation resistance
³ 1,0 GW
in accordance with CECC 42 000
Response time
< 10 ns
Solderability
235 °C, 2 s
in accordance with IEC 60068-2-58
Resistance to soldering heat 260 °C, 10 s
Note:
in accordance with IEC 60068-2-20
Contact EPCOS for consultancy if solvents on water-base are used for cleaning.
149 04/02
SMD Varistors
Monolithic; Automotive Series
Maximum ratings (TA = 85 °C)
V RMS VDC
Wmax
(2 ms)
J
Pmax
W
WLD
(10x)
J
SIOV12-V supply systems
CU3225K14AUTOG2 B72650M1140K072
CU4032K14AUTOG2 B72660M1140K072
V
V
imax
8/20 m s
A
14
14
16
16
100
250
0,4
0,9
0,01
0,02
6
12
CU3225K17AUTOG2
CU4032K17AUTOG2
24-V supply systems
CU3225K30AUTOG2
CU4032K30AUTOG2
B72650M1170K072
B72660M1170K072
17
17
20
20
100
250
0,5
1,1
0,01
0,02
6
12
B72650M1300K072
B72660M1300K072
30
30
34
34
100
250
0,9
2,0
0,01
0,02
6
12
Type
Ordering code
Characteristics (TA = 25 °C)
Type
VJump V v
(5 min) (1 mA)
DV v
(1 mA)
Derating V/I charCtyp
(1 kHz) curve
acteristic
nF
Page
Page
SIOVV
12-V supply systems
CU3225K14AUTOG2 25
CU4032K14AUTOG2 25
V
%
Max. clamping
voltage
v
i
V
A
22
22
± 10
± 10
43
43
1,0
2,5
1,4
2,3
246
246
274
275
CU3225K17AUTOG2
CU4032K17AUTOG2
24-V supply systems
CU3225K30AUTOG2
CU4032K30AUTOG2
30
30
27
27
± 10
± 10
53
53
1,0
2,5
1,2
1,9
246
246
274
275
50
50
47
47
± 10
± 10
93
93
1,0
2,5
0,6
1,1
246
246
274
275
Notes
■ If the maximum loads specified for load dump and jump start are fully utilized, subsequent
polarity reversal of the AUTO varistors is inadmissible.
■ If the load remains under the maximum ratings, polarity reversal may be admissible.
Contact EPCOS for consultancy on this kind of problem.
■ Load dump or jump start can decrease the varistor voltage in load direction by max. 15 %.
■ Load dump: min. time of energy input 40 ms, interval 60 s.
150 04/02
SMD Varistors
Monolithic; Automotive Series
h
h
0,3 max.
b
3±0,3
1,5±0,3
VAR0392-L
Weight:
CU3225: approx. 0,5 g
CU4032: approx. 0,8 g
Dimensions
Type
I
mm
b
mm
h
mm
SIOV-CU3225K14…30
8,0 ± 0,3
6,3 ± 0,3
3,2 ± 0,3
SIOV-CU4032K14…30
10,2 ± 0,3
8,0 ± 0,3
3,2 ± 0,3
Termination: tinned copper alloy
B
A
C
A
B
D
VAR0391-D
Recommended solder pad layout
Type
A
mm
B
mm
C
mm
D
mm
SIOV-CU3225K14…30
3,5
2,8
4,5
10,1
SIOV-CU4032K14…30
3,5
2,8
6,5
12,1
151 04/02
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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
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