Page 1
SMD Varistors
Monolithic; Standard Series
Construction
■ Cylindrical varistor element, encapsulated
■ Encapsulation: thermoplast, flame-retardant to UL 94 V-0
■ Termination: tinned copper alloy
Features
■ Electrical equivalents to leaded
types SIOV-S05/S07 up to 460 V
■ Good solderability
■ PSpice models
■ Approvals: UL (all types) and CSA ( ³ K130)
RMS
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 275 G2
EPCOS metal oxide varistor
Design
Size (nominal)
Taping mode
Max. AC operating voltage
Tolerance of varistor voltage
General technical data
Climatic category
LCT
UCT
Damp heat, steady state
(93 % r.h., 40
°C)
40/85/56
°C
– 40
°C
+ 85
56 days
Operating temperature – 40 … + 85
Storage temperature – 40 … + 125
Electric strength
Insulation resistance
³ 2,5 kV
RMS
³ 1,0 G W in accordance with CECC 42 000
°C in accordance with CECC 42 000
°C
in accordance with IEC 60068-1
in accordance with IEC 60068-2-3
in accordance with CECC 42 000
Response time < 10 ns
Solderability 235
Resistance to soldering heat 260
°C, 2 s in accordance with IEC 60068-2-58
°C, 10 s in accordance with IEC 60068-2-20
Note: Contact EPCOS for consultancy if solvents on water-base are used for cleaning.
143 04/02
Page 2
SMD Varistors
Monolithic; Standard Series
Maximum ratings (T A = 85 ° C)
Type
SIOV-
Ordering code V
RMS
V
V
DC
V
i
max
8/20 m s
A
W
max
(2 ms)
J
P
max
W
CU3225K11G2 B72650M0110K072 11 14 100 0,3 0,01
CU4032K11G2 B72660M0110K072 11 14 250 0,8 0,02
CU3225K14G2 B72650M0140K072 14 18 100 0,4 0,01
CU4032K14G2 B72660M0140K072 14 18 250 0,9 0,02
CU3225K17G2 B72650M0170K072 17 22 100 0,5 0,01
CU4032K17G2 B72660M0170K072 17 22 250 1,1 0,02
CU3225K20G2 B72650M0200K072 20 26 100 0,6 0,01
CU4032K20G2 B72660M0200K072 20 26 250 1,3 0,02
CU3225K25G2 B72650M0250K072 25 31 100 0,7 0,01
CU4032K25G2 B72660M0250K072 25 31 250 1,6 0,02
CU3225K30G2 B72650M0300K072 30 38 100 0,9 0,01
CU4032K30G2 B72660M0300K072 30 38 250 2,0 0,02
CU3225K35G2 B72650M0350K072 35 45 100 1,1 0,01
CU4032K35G2 B72660M0350K072 35 45 250 2,5 0,02
CU3225K40G2 B72650M0400K072 40 56 100 1,3 0,01
CU4032K40G2 B72660M0400K072 40 56 250 3,0 0,02
CU3225K50G2 B72650M0500K072 50 65 400 1,8 0,10
CU4032K50G2 B72660M0500K072 50 65 1200 4,2 0,25
CU3225K60G2 B72650M0600K072 60 85 400 2,2 0,10
CU4032K60G2 B72660M0600K072 60 85 1200 4,8 0,25
CU3225K75G2 B72650M0750K072 75 100 400 2,5 0,10
CU4032K75G2 B72660M0750K072 75 100 1200 5,9 0,25
CU3225K95G2 B72650M0950K072 95 125 400 3,4 0,10
CU4032K95G2 B72660M0950K072 95 125 1200 7,6 0,25
CU3225K115G2 B72650M0111K072 115 150 400 3,6 0,10
CU4032K115G2 B72660M0111K072 115 150 1200 8,4 0,25
CU3225K130G2 B72650M0131K072 130 170 400 4,2 0,10
CU4032K130G2 B72660M0131K072 130 170 1200 9,5 0,25
CU3225K140G2 B72650M0141K072 140 180 400 4,5 0,10
CU4032K140G2 B72660M0141K072 140 180 1200 10,0 0,25
144 04/02
Page 3
SMD Varistors
Monolithic; Standard Series
Characteristics (T A = 25 ° C)
Type
V
(1 mA)
SIOV-
V
CU3225K11G2 18
CU4032K11G2 18
v
DV
v
(1 mA)
%
± 10 36 1,0 1750 246 274
± 10 36 2,5 2750 246 275
Max. clamping voltage C
v
V
i
A
typ
(1 kHz)
pF
Derating
curve
Page
V /I characteristic
Page
CU3225K14G2 22 ± 10 43 1,0 1450 246 274
CU4032K14G2 22
± 10 43 2,5 2300 246 275
CU3225K17G2 27 ± 10 53 1,0 1200 246 274
CU4032K17G2 27
± 10 53 2,5 1900 246 275
CU3225K20G2 33 ± 10 65 1,0 980 246 274
CU4032K20G2 33
± 10 65 2,5 1600 246 275
CU3225K25G2 39 ± 10 77 1,0 850 246 274
CU4032K25G2 39
± 10 77 2,5 1400 246 275
CU3225K30G2 47 ± 10 93 1,0 720 246 274
CU4032K30G2 47
± 10 93 2,5 1200 246 275
CU3225K35G2 56 ± 10 110 1,0 620 246 274
CU4032K35G2 56
± 10 110 2,5 1050 246 275
CU3225K40G2 68 ± 10 135 1,0 520 246 274
CU4032K40G2 68
± 10 135 2,5 900 246 275
CU3225K50G2 82 ± 10 135 5,0 300 247 274
CU4032K50G2 82
± 10 135 10,0 530 247 275
CU3225K60G2 100 ± 10 165 5,0 250 247 274
CU4032K60G2 100
± 10 165 10,0 480 247 275
CU3225K75G2 120 ± 10 200 5,0 210 247 274
CU4032K75G2 120
± 10 200 10,0 430 247 275
CU3225K95G2 150 ± 10 250 5,0 135 247 274
CU4032K95G2 150
± 10 250 10,0 260 247 275
CU3225K115G2 180 ± 10 300 5,0 110 247 274
CU4032K115G2 180
± 10 300 10,0 220 247 275
CU3225K130G2 205 ± 10 340 5,0 100 247 274
CU4032K130G2 205
± 10 340 10,0 200 247 275
CU3225K140G2 220 ± 10 360 5,0 95 247 274
CU4032K140G2 220
± 10 360 10,0 180 247 275
145 04/02
Page 4
SMD Varistors
Monolithic; Standard Series
Maximum ratings (T
Type
SIOV-
= 85 ° C)
A
Ordering code V
RMS
V
V
DC
V
i
max
8/20 m s
A
W
max
(2 ms)
J
P
max
W
CU3225K150G2 B72650M0151K072 150 200 400 4,9 0,10
CU4032K150G2 B72660M0151K072 150 200 1200 11,0 0,25
CU3225K175G2 B72650M0171K072 175 225 400 5,6 0,10
CU4032K175G2 B72660M0171K072 175 225 1200 13,0 0,25
CU3225K230G2 B72650M0231K072 230 300 400 7,2 0,10
CU4032K230G2 B72660M0231K072 230 300 1200 17,0 0,25
CU3225K250G2 B72650M0251K072 250 320 400 8,2 0,10
CU4032K250G2 B72660M0251K072 250 320 1200 19,0 0,25
CU3225K275G2 B72650M0271K072 275 350 400 8,6 0,10
CU4032K275G2 B72660M0271K072 275 350 1200 21,0 0,25
CU3225K300G2 B72650M0301K072 300 385 400 9,6 0,10
CU4032K300G2 B72660M0301K072 300 385 1200 23,0 0,25
CU4032K460G2 B72660M0461K072 460 615 1000 36,0 0,25
146 04/02
Page 5
SMD Varistors
Monolithic; Standard Series
Characteristics (T
Type
SIOV-
= 25 ° C)
A
V
v
(1 mA)
V
DV
v
(1 mA)
%
Max. clamping voltage C
v
V
i
A
typ
(1 kHz)
pF
Derating
curve
Page
V /I characteristic
Page
CU3225K150G2 240 ± 10 395 5,0 90 247 274
CU4032K150G2 240
± 10 395 10,0 170 247 275
CU3225K175G2 270 ± 10 455 5,0 75 247 274
CU4032K175G2 270
± 10 455 10,0 150 247 275
CU3225K230G2 360 ± 10 595 5,0 60 247 274
CU4032K230G2 360
± 10 595 10,0 115 247 275
CU3225K250G2 390 ± 10 650 5,0 55 247 274
CU4032K250G2 390
± 10 650 10,0 105 247 275
CU3225K275G2 430 ± 10 710 5,0 50 247 274
CU4032K275G2 430
± 10 710 10,0 95 247 275
CU3225K300G2 470 ± 10 775 5,0 45 247 274
CU4032K300G2 470
CU4032K460G2 750 ± 10 1240 10,0 55 upon
± 10 775 10,0 90 247 275
275
request
147 04/02
Page 6
SMD Varistors
Monolithic; Standard Series
b
h
1,5±0,3
0,3 max.
3±0,3
Weight:
CU3225: approx. 0,5 g
CU4032: approx. 0,8 g
Dimensions
Type I
mm
SIOV-CU3225K11… 175 8,0
SIOV-CU3225K230… 300 8,0
SIOV-CU4032K11… 175 10,2
SIOV-CU4032K230… 460 10,2
± 0,3 6,3 ± 0,3 3,2 ± 0,3
± 0,3 6,3 ± 0,3 4,5 ± 0,3
± 0,3 8,0 ± 0,3 3,2 ± 0,3
± 0,3 8,0 ± 0,3 4,5 ± 0,3
b
mm
h
mm
Termination: tinned copper alloy
B B
C
A
D
Recommended solder pad layout
Type A
mm
B
mm
C
mm
D
mm
SIOV-CU3225K11… 175 3,5 2,8 4,5 10,1
SIOV-CU3225K230… 300 3,5 2,8 4,5 10,1
SIOV-CU4032K11… 175 3,5 2,8 6,5 12,1
SIOV-CU4032K230… 460 3,5 2,8 6,5 12,1
h
VAR0392-L
A
VAR0391-D
148 04/02
Page 7
Herausgegeben von EPCOS AG
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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
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 Representatives.
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