Construction
I Cylindrical varistor element, encapsulated
I Encapsulation: thermoplast, flame-retardant to UL 94 V-0I Termination: tinned copper alloy
Features
I High energy absorption, particularly in case of load dump I Jump-start strength
I Stable protection level, minimum leakage current I High resistance to cyclic temperature stress I Good solderability I Low inductance I
PSpice models
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 ”
Note:Contact EPCOS for consultancy if solvents on water-base are used for cleaning.
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 60068-1in accordance with IEC 60068-2-3Operating temperature – 40 … + 85 °C in accordance with CECC 42 000Storage temperature – 40 … + 125 °C
Electric strength 3 2,5 kV RMS in accordance with CECC 42 000Insulation resistance 3 1,0 G W in accordance with CECC 42 000Response time < 10 ns Solderability
235 °C, 2 s
in accordance with IEC 60068-2-58Resistance to soldering heat 260 °C, 10 s
in accordance with IEC 60068-2-20
SIOV-CU 4032 K 14 AUTO G2
Design
Size (nominal)Taping mode Automotive varistor
Tolerance
of varistor voltage Max. AC operating voltage EPCOS metal oxide varistor SMD Varistors
Monolithic; Automotive Series
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 40ms, interval 60 s.
CU3225K14AUTOG2B72650M1140K07214
161000,40,01 6CU4032K14AUTOG2B72660M1140K07214162500,90,0212CU3225K17AUTOG2B72650M1170K07217201000,50,01 6CU4032K17AUTOG2B72660M1170K07217202501,10,0212CU3225K30AUTOG2B72650M1300K07230341000,90,01 6CU4032K30AUTOG2
B72660M1300K072
30
34
250
2,0
0,02
12
Characteristics (T A = 25 °C)Type
SIOV-V Jump (5 min)V
V v
(1 mA)
V D V v (1 mA)%
Max. clamping voltage C typ
(1 kHz)nF Derating curve Page V /I char-acteristic Page v V i A 12-V supply systems
CU3225K14AUTOG22522± 10431,01,4246274CU4032K14AUTOG22522± 10432,52,3246275CU3225K17AUTOG23027± 10531,01,2246274CU4032K17AUTOG23027± 10532,51,924627524-V supply systems CU3225K30AUTOG25047± 10931,00,6246274CU4032K30AUTOG250
47
± 10
93
2,5
1,1
246
275
Dimensions
Termination: tinned copper alloy
Type
I
mm b mm h mm SIOV-CU3225K14...308,0 ± 0,36,3 ± 0,33,2 ± 0,3SIOV-CU4032K14 (30)
10,2 ± 0,3
8,0 ± 0,3
3,2 ± 0,3
Recommended solder pad layout Type
A
mm B mm C mm D mm SIOV-CU3225K14...303,52,84,510,1SIOV-CU4032K14 (30)
3,5
2,8
6,5
12,1
Weight:
CU3225: approx. 0,5 g CU4032: approx. 0,8 g
Herausgegeben von EPCOS AG
Unternehmenskommunikation, Postfach 801709, 81617 München, DEUTSCHLAND
( ++49 89 636 09, FAX (089) 636-2 2689
EPCOS AG 2002. Vervielf?ltigung, Ver?ffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne aus-drückliche Genehmigung der EPCOS AG nicht gestattet.
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Published by EPCOS AG
Corporate Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY
( ++49 89 636 09, FAX (089) 636-2 2689
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.
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