Aluminum electrolytic capacitors
For automotive applications,
single-ended,125 °C / 2000 ...5000 h
Series/Type: B41896
Date: July 2005
© EPCOS AG 2005. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Please read the important notes, cautions and warnings. 1
EPCOS AG
Single-ended
Aluminum electr olytic capacitors
Introduction
Aluminum electrolytic capacitors
from EPCOS are constantly being
enhanced to specifications meeting
the typical requirements in the auto-
motive industry.
This section presents
the latest innova
tions within the single-
ended product line. All existing series
have been improved and new series
introduced. In addition, special lead
configurations have been added to
provide a broad range of lead
options. The Protection Against
Polarity Reversal (PAPR) concept has
been extended with J leads and bent
90° leads. Blister packaging is now
introduced as standard for all PAPR
configurations. This results in better
quality and convenience for the cus-
tomer.
The new B41853 series was devel-
oped to achieve excellent perform-
ance in airbag applications, covering
a wide range of capacitance values
up to 6800 µF.
The high-reliability series B41868 for
high temperatures up to 150 °C and
the new B41896 series with long use-
ful life for temperatures up to 125 °C
take full advantage of higher ripple
current capability in compact can
sizes, ensuring exceptional perform-
ance in powertrain applications and
control units installed in the vicinity of
the engine.
The B41888 series has also been up-
graded and provides very long useful
life and high ripple current capability
at 105 °C.
The B43866 series combines high
temperature resistance up to 125 °C,
at high operating voltages up to 350 V
,
and is a potential solution for new
applications such as piezo injector
technology.
EPCOS quality is certified by the
international standards ISO 9001 and
ISO/TS 16949. In addition, the intro-
duction of new mechanical and
technical features makes EPCOS
single-ended aluminum electrolytic
capacitors one of the best and most
competitive products worldwide.
Differ ent lead configurations available. For mor e details see pages 63–66.
Standard type J lead Crimped lead Bent 90° lead
07/05
2
EPCOS AG
Please read the important notes, cautions and warnings.
Data sheet
B41896
Specifications and characteristics in brief Product
Rated voltage V
R
10 … 63 VDC
Surge voltage V
surge
1.15 · V
R
Rated capacitance C
R
1 … 4700 µF
Capacitance tolerance ±20% ; M
Useful life 2 000 h for d = 8.0 mm Requirements:
125 °C; V
R
; I~
R
3 000 h for d = 10.0 mm ∆C/C ≤±35% of initial measur ed value
5 000 h for d ≥12.5 mm tan ≤3 times initial specified value
I
leak
≤initial specified value
Voltage endurance test 2 000 h for d = 8.0 mm Post test requir ements:
125 °C; V
R
3 000 h for d = 10.0 mm ∆C/C ≤±30% of initial measur ed value
5 000 h for d ≥12.5 mm tan ≤2 times initial specified value
I
leak
≤initial specified value
Vibration r esistance To IEC 60068-2-6, test Fc:
displacement amplitude 0.75 mm, frequency range 10 … 2000 Hz,
acceleration max. 20 g, duration 3 x 2 h (body clipping)
IEC climatic category To IEC 60068-1:
55/125/56 (– 55 °C/+125 °C/56 days damp heat test)
Sectional specification AEC-Q200, IEC 60384-4, DIN 45910 part 12
Specifications and characteristics in brief
Features
■Wide temperature range up to 125 °C
■Long useful life
■High ripple current capability
■Compact design
■Shelf life of the capacitor up to 15 years at storage temperatures up to 40 °C. To ensure solderability,
the capacitors should be built into the application within one year of delivery. After a total of two years’
storage, the operating voltage must be applied for one hour to ensure the specified leakage current.
Specifications and characteristics in brief Product
d x l d
max
x l
max
a
b Approx. weight
(mm) (mm) (mm) (mm) (g)
8 x 11.5 8.5 x 13 3.5 0.60 ± 0.05 1.0
10 x 12.5 10.5 x 13.5 5.0 0.60 ± 0.05 1.6
10 x 16 10.5 x 17 5.0 0.60 ± 0.05 1.9
10 x 20 10.5 x 22 5.0 0.60 ± 0.05 2.6
12.5 x 20 13.0 x 22 5.0 0.60 ± 0.05 3.6
12.5 x 25 13.0 x 27 5.0 0.60 ± 0.05 4.5
16 x 25 16.5 x 27 7.5 0.80 ± 0.05 7.5
16 x 31.5 16.5 x 33.5 7.5 0.80 ± 0.05 8.8
18 x 31.5 18.5 x 32.5 7.5 0.80 ± 0.1 11
18 x 35 18.5 x 37 7.5 0.80 ± 0.1 13
20 x 40 20.5 x 42 10.0 0.80 ± 0.1 16.5
Dimensional drawing, standard type Dimensions and weights, standard type
KAL0811-E-E
d
d max.
a±0.5
Safety vent
15 min.
max. 5 min.
øb
Minus pole
marking
+
-
Stand-off rubber seal
07/05
3
EPCOS AG Please read the important notes, cautions and warnings.
Data sheet
B41896
Case dimensions and or dering codes
10 330 8 x 11.5 0.20 0.80 500 33 B41896W3337M***
470 10 x 12.5 0.20 0.56 680 47 B41896W3477M***
1000 10 x 20 0.20 0.26 1100 100 B41896W3108M***
2200 12.5 x 25 0.22 0.13 1750 220 B41896W3228M***
3300 16 x 25 0.24 0.09 2300 330 B41896W3338M***
4700 16 x 31.5 0.26 0.07 2710 470 B41896W3478M***
16 100 8 x 11.5 0.17 2.25 340 16 B41896W4107M***
220 8 x 11.5 0.17 1.02 500 35 B41896W4227M***
330 10 x 12.5 0.17 0.68 680 53 B41896W4337M***
470 10 x 16 0.17 0.48 965 75 B41896W4477M***
1000 12.5 x 20 0.17 0.22 1490 160 B41896W4108M***
2200 16 x 25 0.19 0.12 2300 350 B41896W4228M***
3300 16 x 31.5 0.21 0.08 2900 530 B41896W4338M***
4700 18 x 31.5 0.23 0.06 3400 750 B41896W4478M***
25 100 8 x 11.5 0.17 2.25 500 25 B41896W5107M***
220 10 x 12.5 0.17 1.02 680 55 B41896W5227M***
330 10 x 16 0.17 0.68 945 82 B41896W5337M***
470 10 x 20 0.17 0.48 1100 117 B41896W5477M***
1000 12.5 x 25 0.17 0.22 1875 250 B41896W5108M***
2200 16 x 31.5 0.19 0.12 2780 550 B41896W5228M***
3300 18 x 31.5 0.21 0.08 3500 820 B41896W5338M***
4700 20 x 40 0.23 0.06 4000 1170 B41896W5478M***
35 100 10 x 12.5 0.12 1.59 620 35 B41896W7107M***
220 10 x 16 0.12 0.72 790 77 B41896W7227M***
330 10 x 20 0.12 0.48 950 115 B41896W7337M***
470 12.5 x 20 0.12 0.34 1330 165 B41896W7477M***
1000 16 x 25 0.12 0.16 2010 350 B41896W7108M***
2200 18 x 35 0.14 0.08 2790 770 B41896W7228M***
3300 20 x 40 0.16 0.06 4000 1150 B41896W7338M***
50 1 8 x 11.5 0.10 132.0 35 5 B41896W6105M***
2.2 8 x 11.5 0.10 60.0 50 5 B41896W6225M***
3.3 8 x 11.5 0.10 40.0 70 5 B41896W6335M***
4.7 8 x 11.5 0.10 28.0 100 5 B41896W6475M***
10 8 x 11.5 0.10 13.0 200 5 B41896W6106M***
22 8 x 11.5 0.10 6.0 260 11 B41896W6226M***
33 8 x 11.5 0.10 4.0 300 17 B41896W6336M***
47 8 x 11.5 0.10 2.8 440 24 B41896W6476M***
100 10 x 12.5 0.10 1.3 555 50 B41896W6107M***
220 10 x 20 0.10 0.6 930 110 B41896W6227M***
330 12.5 x 20 0.10 0.4 1330 165 B41896W6337M***
470 12.5 x 25 0.10 0.3 1650 235 B41896W6477M***
1000 16 x 31.5 0.10 0.1 2430 500 B41896W6108M***
2200 20 x 40 0.12 0.07 2900 1100 B41896W6228M***
63 22 8 x 11.5 0.10 6.0 150 14 B41896W8226M***
33 8 x 11.5 0.10 4.0 250 20 B41896W8336M***
47 10 x 12.5 0.10 2.8 350 24 B41896W8476M***
100 10 x 16 0.10 1.3 600 63 B41896W8107M***
220 12.5 x 20 0.10 0.6 1050 140 B41896W8227M***
330 12.5 x 25 0.10 0.4 1320 200 B41896W8337M***
470 16 x 25 0.10 0.3 1600 240 B41896W8477M***
680 16 x 31.5 0.10 0.2 1900 425 B41896W8687M***
1000 18 x 31.5 0.10 0.1 1850 630 B41896W8108M***
1500 20 x 40 0.10 0.08 2600 945 B41896W8158M***
V
R
C
R
Case dimensions tan
max
ESR
max
I~
R
I
leak, max
Ordering
120 Hz d x l 120 Hz 120 Hz 100 kHz 5 min. code
20 °C 20 °C 20 °C 125 °C 20 °C
VDC µF mm ΩmA µA
*** = "000" for standard leads, bulk
"001" for kinked leads, bulk (for
≥10 mm)
"002" for cut leads, bulk (for
≥10 mm)
"003" for crimped leads, blister (for
≥16 mm)
"004" for J leads, blister
(from
10 x 12.5 mm to18 x 35 mm)
"008" for taped leads, Ammo pack, LS F = 5.0 mm
(from
6.3 x 11 mm to12.5 x 25 mm)
"009" for taped leads, Ammo pack, LS F = 7.5 mm
(from
16 x 20 mm to 18 x 31.5 mm)
"012" for bent 90° leads, blister
(
16 mm and 18 mm)
For more details refer to page 63 "Overview of packing units".
07/05
4
EPCOS AG
Please read the important notes, cautions and warnings.
Data sheet
B41896
Characteristics
1.0
130
100 000 h
40
0
0.5
50 60 70 90
50 000 h
80
25 000 h
100
10 000 h
110
5 000 h
˚C
TA
120
2 000 h
~
~
ΙΙ
R
1.5
2.0
2.5
3.0 KAL0948-U
B41896
1.0
040 50
0.5
200 000 h
60 70
100 000 h
50 000 h
80 90 120
20 000 h
110100
7 000 h
130
A
T˚C
3 000 h
~
~
ΙΙ
1.5
2.0
2.5
R
3.0 B41896
KAL0949-3
Useful life
depending on ambient temperature TAunder ripple
current operating conditions
d = 10 mm
Useful life
depending on ambient temperature TAunder ripple
current operating conditions
d = 8 mm
0.40
Ι
~100 kHz
Ι
~f
KAL0951-E
1010
1
10
2 3 104Hz
f105
0.45
0.50
0.55
0.60
0.65
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.20 B41896
Useful life
depending on ambient temperature TAunder ripple
current operating conditions
d ≥12.5 mm
Frequency factor of permissible ripple current I~
versus frequency f
07/05
Single-ended
Aluminum electr olytic capacitors
Overview of packing units
Lead configurations
d x l d
max
x l
max
a
b
6.3 x 11 6.8 x 12 2.5 0.50 ± 0.05
8 x 11.5 8.5 x 13 3.5 0.60 ± 0.05
10 x 12.5 10.5 x 13.5 5.0 0.60 ± 0.05
10 x 16 10.5 x 17 5.0 0.60 ± 0.05
10 x 20 10.5 x 22 5.0 0.60 ± 0.05
12.5 x 20 13.0 x 22 5.0 0.60 ± 0.05
12.5 x 25 13.0 x 27 5.0 0.60 ± 0.05
16 x 20 16.5 x 22 7.5 0.80 ± 0.05
16 x 25 16.5 x 27 7.5 0.80 ± 0.05
16 x 31.5 16.5 x 33.5 7.5 0.80 ± 0.05
18 x 20 18.5 x 22 7.5 0.80 ± 0.1
18 x 25 18.5 x 27 7.5 0.80 ± 0.1
18 x 31.5 18.5 x 32.5 7.5 0.80 ± 0.1
18 x 35 18.5 x 37 7.5 0.80 ± 0.1
18 x 40 18.5 x 42 7.5 0.80 ± 0.1
20 x 20 20.5 x 22 10.0 0.80 ± 0.1
20 x 25 20.5 x 27 10.0 0.80 ± 0.1
20 x 40 20.5 x 42 10.0 0.80 ± 0.1
Standard leads Dimensions (mm)
KAL0811-E-E
d
d max.
a±0.5
Safety vent
15 min.
max. 5 min.
øb
Minus pole
marking
+
-
Stand-off rubber seal
6.3 x 11 2500 2000 – – – – –
8 x 11.5 1000 1000 – – – – –
10 x 12.5 1000 750 – 1000 – 675 –
10 x 16 1000 500 – 1000 – 675 –
10 x 20 500 500 500 500 – 450 –
12.5 x 20 350 500 500 500 – 300 –
12.5 x 25 250 500 500 500 – 225 –
16 x 20 250 300 200 200 200 200 120
16 x 25 250 300 200 200 200 200 120
16 x 31.5 200 300 250 250 150 150 120
18 x 20 175 250 175 175 200 200 120
18 x 25 150 250 150 150 200 200 120
18 x 31.5 100 250 100 100 150 150 120
18 x 35 100 – 100 100 150 150 72
18 x 40 125 – 100 100 120 – 72
20 x 20 125 – 125 125 200 – –
20 x 25 125 – 125 125 200 – –
20 x 40 100 – 200 200 120 – –
The last three digits 000 008 (F = 5.0 mm, 001 002 003 004 012
of the complete
6.3 ... 12.5 mm)
ordering code state 009 (F = 7.5 mm,
the lead configuration.
16 ... 18 mm)
Case dimensions Standard, Taped, Kinked leads, Cut leads, PAPR
d x l bulk Ammo pack bulk bulk Crimped leads, J leads,
Bent 90° leads,
blister blister blister
(mm) (pcs.) (pcs.) (pcs.) (pcs.) (pcs.) (pcs.) (pcs.)
Ordering code example: B41888W6227M003 = crimped leads, blister
5
EPCOS AG Please read the important notes, cautions and warnings.
07/05
16 7.5 18.5 18.0 12.5 9.0 1.5 30.0 15.0 3.75 1.0 0.7 0 0 4.0
18 *)7.5 18.5 18.0 12.5 9.0 1.5 30.0 15.0 3.75 1.0 0.7 0 0 4.0
Tolerance ±0.8 -0.5/+0.75 ±0.5 min. ±0.5 max. ±1.0 ±0.2 ±0.5 max. ±0.2 ±1.0 ±1.0 ±0.2
6.3 5.0 18.5 16.0 18.0 5.5 9.0 1.5 12.7 12.7 3.85 1.0 0.7 0 4.0
8 5.0 20.0 16.0 18.0 12.5 9.0 1.5 12.7 12.7 3.85 1.0 0.7 0 4.0
10 5.0 19.0 – 18.0 12.5 9.0 1.5 12.7 12.7 3.85 1.0 0.7 0 4.0
12.5 5.0 19.0 – 18.0 12.5 9.0 1.5 15.0 15.0 5.0 1.0 0.7 0 4.0
Tolerance +0.8 / -0.2 ±0.75 ±0.5 ±0.5 min. ±0.5 max. ±1.0 ±0.2 ±0.5 max. ±0.2 ±1.0 ±0.2
6
EPCOS AG
Please read the important notes, cautions and warnings.
Lead configurations
Taped in Ammo pack, lead spacing F = 5.0 mm
Adhesive tape
Base tape FB
H
ødP
W
KAL0709-W-E
t
∆h
1 max.
View B
0
P
P1
D0
H0
1
WW2
W0
1
Adhesive tape
Base tape FB
H
ødP
W
KAL0710-Z-E
t
∆h
1 max.
View B
P
0
P
1
D
0
W0W2
W1
1
d = 6.3 … 8 mm d = 10 … 12.5 mm
dF HH
0
WW
0
W
1
W
2
PP
0
P
1
l
1
t∑hD
0
Dimensions (mm)
Taped in Ammo pack, lead spacing F = 7.5 mm
Adhesive tape
Base tape FB
H
P
ød
±0.1∆P
W
KAL0712-G-E
t
∆h
1 max.
View B
P
0
P
1
D
0
W
0
W
2
W
1
1
d = 16 … 18 mm
dFH WW
0
W
1
W
2
PP
0
P
1
l
1
t∑P∑hD
0
Dimensions (mm)
*)Available only for case dimensions 18 x 20, 18 x 25 and 18 x 31.5 mm
07/05
7
EPCOS AG Please read the important notes, cautions and warnings.
Lead configurations
Specifications and characteristics in brief Product
d x l A
max
B
max
C
max
6.3 x 11 345 55 290
8 x 11.5 345 55 240
10 x 12.5 345 55 280
10 x 16 345 60 200
10 x 20 345 60 200
12.5 x 20 345 65 280
12.5 x 25 345 65 280
16 x 20 315 65 275
16 x 25 315 65 275
16 x 31.5 315 65 275
18 x 20 315 65 275
18 x 25 315 65 275
18 x 31.5 315 65 275
Ammo pack Dimensions (mm)
KAL0713-P
A
C
B
Specifications and characteristics in brief Product
d x l F B
10 x 20 5.0 4.5
12.5 x 20 5.0 4.5
12.5 x 25 5.0 4.5
16 x 20 7.5 4.5
16 x 25 7.5 4.5
16 x 31.5 7.5 4.5
18 x 20 7.5 4.5
18 x 25 7.5 4.5
18 x 31.5 7.5 4.5
18 x 35 7.5 4.5
18 x 40 7.5 4.5
20 x 20 10.0 4.5
20 x 25 10.0 4.5
20 x 40 10.0 4.5
Kinked leads Dimensions (mm)
B±0.5
ød
ød
1.5 max.
KAL0714-X
F±0.5 1.0 max.
1.0
0.8
+1.0
2.8
_
d x l F B
10 x 12.5 5.0 4.5
10 x 16 5.0 4.5
10 x 20 5.0 4.5
12.5 x 20 5.0 4.5
12.5 x 25 5.0 4.5
16 x 20 7.5 4.5
16 x 25 7.5 4.5
16 x 31.5 7.5 4.5
18 x 20 7.5 4.5
18 x 25 7.5 4.5
18 x 31.5 7.5 4.5
18 x 35 7.5 4.5
18 x 40 7.5 4.5
20 x 20 10.0 4.5
20 x 25 10.0 4.5
20 x 40 10.0 4.5
Cut leads Dimensions (mm)
ød
KAL0715-6
F±0.5
B±0.5
07/05
8
EPCOS AG
Please read the important notes, cautions and warnings.
PAPR leads ( Protection Against Polarity Reversal )
Specifications and characteristics in brief Product
d x l B C D E a b
16 x 20 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.05
16 x 25 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.05
16 x 31.5 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.05
18 x 20 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.1
18 x 25 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.1
18 x 31.5 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.1
18 x 35 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.1
18 x 40 1.5 3.0 1.3 0.3 7.5 0.8 ± 0.1
20 x 20 1.5 3.0 1.3 0.3 10.0 0.8 ± 0.1
20 x 25 1.5 3.0 1.3 0.3 10.0 0.8 ± 0.1
20 x 40 1.5 3.0 1.3 0.3 10.0 0.8 ± 0.1
Crimped leads Dimensions (mm)
View A
E ±0.1
ø1.5ø1.0
KAL0810-6-E
Suggestion for PCB hole diameter,
wire ø0.8 mm
D±0.1
Safety vent C±0.2
-
max. A
+
B±0.2
KAL0809-3-E
d max.
d
a±0.5
bmarking
Minus pole
These lead configurations ensure correct placement of the capacitors on the PCB with regard to polarity.
PAPR leads are available for diameters from 10 mm up to 20 mm. There are three configurations available:
■Crimped leads
■J leads
■Bent 90° leads
Specifications and characteristics in brief Product
d x l B E J a b
10 x 12.5 3.2 0.7 1.2 5.0 0.6 ± 0.05
10 x 16 3.2 0.7 1.2 5.0 0.6 ± 0.05
10 x 20 3.2 0.7 1.2 5.0 0.6 ± 0.05
12.5 x 20 3.2 0.7 1.2 5.0 0.6 ± 0.05
12.5 x 25 3.2 0.7 1.2 5.0 0.6 ± 0.05
16 x 20 3.5 0.7 1.6 7.5 0.8 ± 0.05
16 x 25 3.5 0.7 1.6 7.5 0.8 ± 0.05
16 x 31.5 3.5 0.7 1.6 7.5 0.8 ± 0.05
18 x 20 3.5 0.7 1.6 7.5 0.8 ± 0.1
18 x 25 3.5 0.7 1.6 7.5 0.8 ± 0.1
18 x 31.5 3.5 0.7 1.6 7.5 0.8 ± 0.1
18 x 35 3.5 0.7 1.6 7.5 0.8 ± 0.1
J leads Dimensions (mm)
KAL0979-P-E
Safety vent
a±0.5
Minus pole
marking
øb
J±0.2
E±0.5
B±0.5
-
+
max.
d max.
d
Specifications and characteristics in brief Product
d x l C E F a b
16 x 20 4.0 4.0 12.0 7.5 0.8 ± 0.05
16 x 25 4.0 4.0 12.0 7.5 0.8 ± 0.05
16 x 31.5 4.0 4.0 12.0 7.5 0.8 ± 0.05
18 x 20 4.0 3.0 13.0 7.5 0.8 ± 0.1
18 x 25 4.0 3.0 13.0 7.5 0.8 ± 0.1
18 x 31.5 4.0 3.0 13.0 7.5 0.8 ± 0.1
18 x 35 4.0 3.0 13.0 7.5 0.8 ± 0.1
18 x 40 4.0 3.0 13.0 7.5 0.8 ± 0.1
Bent 90° leads for horizontal mounting pinning Dimensions (mm)
Safety vent
C±0.3
-
max.
+
KAL0981-P-E
d max.
d
a±0.5
øb
marking
Minus pole
F±0.5
E±0.5
Lead configurations
07/05
9
EPCOS AG Please read the important notes, cautions and warnings.
The internal structure of single-ended capacitors might be damaged if excessive force is applied to the lead wires.
Stresses like push, pull, bend, etc. might cause increased leakage current, intermittent capacitance, electrolyte leak-
age or open/short circuit, due to rupture of terminals or internal elements.
The following actions should be avoided:
■Moving the capacitor after soldering to the PC board.
■Picking up the PC board by holding the soldered capacitor.
■Inserting the capacitor on the PC board with a hole space different to the specified lead space.
Specifications and characteristics in brief Product
Example
Mounting considerations
KAL0708-N-E
Incorrect
mounting Incorrect
mounting mounting
IncorrectCorrect
mounting
07/05
10
EPCOS AG
Important notes
The following applies to all products
named in this publication:
1. Some parts of this publication
contain statements about the
suitability of our products for
certain areas of application.
These statements are based on
our knowledge of typical require-
ments that are often placed on
our products in the areas of appli-
cation concerned. We never-
theless expressly point out that
such statements cannot be re-
garded as binding statements
about the suitability of our
products for a particular cus-
tomer application. As a rule,
EPCOS is either unfamiliar with
individual customer applications
or less familiar with them than the
customers themselves. For these
reasons, it is always ultimately
incumbent on the customer to
check and decide whether an
EPCOS product with the proper-
ties described in the product
specification is suitable for use in
a particular customer application.
2. We also point out that in individ-
ual cases, a malfunction of
passive electronic compo-
nents or failure before the end
of their usual service life can-
not be completely ruled out in
the current state of the art,
even if they are operated as
specified. In customer applica-
tions requiring a very high level of
operational safety and especially
in customer applications in which
the malfunction or failure of a pas-
sive electronic component could
endanger human life or health
(e.g. in accident prevention or life-
saving systems), it must therefore
be ensured by means of suitable
design of the customer applica-
tion or other action taken by the
customer (e.g. installation of pro-
tective circuitry or redundancy)
that no injury or damage is sus-
tained by third parties in the event
of malfunction or failure of a pas-
sive electronic component.
3. The warnings, cautions and
product-specific notes must
be observed.
4. In order to satisfy certain technical
requirements, some of the
products described in this
publication may contain sub-
stances subject to restrictions
in certain jurisdictions (e.g.
because they are classed as
“hazardous”). Useful information
on this will be found in our Materi-
al Data Sheets on the Internet
(www.epcos.com/material).
Should you have any more de-
tailed questions, please contact
our sales offices.
5. We constantly strive to improve
our products. Consequently, the
products described in this
publication may change from
time to time. The same is true of
the corresponding product speci-
fications. Please check therefore
to what extent product descrip-
tions and specifications contained
in this publication are still applica-
ble before or when you place an
order.
We also reserve the right to
discontinue production and
delivery of products. Conse-
quently, we cannot guarantee that
all products named in this publi-
cation will always be available.
6. Unless otherwise agreed in indi-
vidual contracts, all orders are
subject to the current version
of the “General Terms of De-
livery for Products and Ser-
vices in the Electrical Indus-
try” published by the German
Electrical and Electronics In-
dustry Association (ZVEI).
7. The trade names EPCOS,
CeraDiode, CSSP, SIMID,
PhaseCap, PhaseMod, SIFI,
SIKOREL, SilverCap, SIOV,
SIP5D, SIP5K, TOPcap,
UltraCap, WindCap are trade-
marks registered or pending in
Europe and in other countries.
Further information will be found
on the Internet at
www.epcos.com/trademarks.
07/05
11
EPCOS AG
Cautions and warnings
The electrolytes used by EPCOS have not only been optimized with a view to the intended application, but also
with regard to health and environmental compatibility. They do not contain any solvents that are detrimental to
health, e.g. dimethyl formamide (DMF) or dimethyl acetamide (DMAC).
Furthermore, part of the high-voltage electrolytes used by EPCOS are self-extinguishing. They contain flame-
retarding substances which will quickly extinguish any flame that may have been ignited.
As far as possible, EPCOS does not use any dangerous chemicals or compounds to produce operating elec-
trolytes. However, in exceptional cases, such materials must be used in order to achieve specific physical and
electrical properties because no safe substitute materials are currently known. However, the amount of danger-
ous materials used in our products has been limited to an absolute minimum. Nevertheless, the following rules
should be observed when handling Al electrolytic capacitors:
■Any escaping electrolyte should not come into contact with eyes or skin.
■If electrolyte does come into contact with the skin, wash the affected parts immediately with running water.
If the eyes are affected, rinse them for 10 minutes with plenty of water. If symptoms persist, seek medical treat-
ment.
■Avoid breathing in electrolyte vapor or mists. Workplaces and other affected areas should be well ventilated.
Clothing that has been contaminated by electrolyte must be changed and rinsed in water.
Personal safety
■Make sure that polar capacitors are connected with the right polarity.
■Voltages polarity clashes should be prevented by connecting a diode.
■Do not damage the insulating sleeve, especially when ring clips are used for mounting.
■Do not exceed the upper category temperature (UCT).
■Make periodic inspections of the capacitors. Before the inspection, make sure that the power supply
is turned off and carefully discharge the electricity of the capacitors.
■Do not apply any mechanical stress to the capacitor terminals.
■The internal structure of single-ended capacitors may be damaged if excessive force is applied to
the lead wires.
■Avoid any compressive, tensile or flexural stress.
■Do not move the capacitor after soldering to the PC board.
■Do not pick up the PC board by the soldered capacitor.
■Do not insert the capacitor on the PC board with a hole space different to the lead space specified.
■Do not exceed the specified time or temperature limits during soldering.
■Capacitors should be dipped in solder for less than 10 seconds.
■Do not allow halogenated hydrocarbons to come into contact with aluminum electrolytic capacitors.
■Avoid external energy, such as fire or electricity.
■Avoid overload of the capacitors.
Product safety
Failure to follow cautions and warnings may result in the worst case in premature failure, bursting and fire.
07/05
12
EPCOS AG
Product safety
Polarity
Make sure that polar capacitors are
connected with the right polarity. If
the opposite polarity were to be ap-
plied, this would cause an electrolyt-
ic process resulting in the formation
of a dielectric layer on the cathode
foil. In this case strong internal heat
generation and gas emission may
occur and destroy the capacitor.
Polar capacitors do not tolerate a
voltage reversal. Incorrect polarities
of up to 1.5 V are, however, permis-
sible for short periods of time as the
formation of a damaging oxide layer
on the cathode only starts at volt-
ages of this magnitude.
Reverse voltage
Aluminum electrolytic capacitors are
polar capacitors. Where necessary,
voltages of opposite polarity should
be prevented by connecting a
diode. The diode’s conducting-state
voltage of approximately 0.8 V is
permissible. Reverse voltages ≤1.5 V
are tolerable for a duration of less
than 1 second, but not in continu-
ous or repetitive operation.
Breakdown strength of
insulating sleeves
The minimum breakdown strength of
the insulating sleeve is 2500 VAC or
3500 VDC. A test method for verifying
the breakdown strength of the slee-
ves is described in IEC 60384-4.
In order to ensure full breakdown
strength, care must be taken not to
damage the insulating sleeve, espe-
cially when ring clips are used for
mounting. The insulation can be im-
proved by using an insulating strip.
In such cases, attention must be
paid to any relevant regulations
(e.g. VDE, BSA or UL regulations).
Upper category tempera-
ture (UCT)
The upper category temperature is
the maximum permissible ambient
temperature at which a capacitor
may be continuously operated. If
this limit is exceeded, the capacitor
may fail prematurely.
For some type series, however, op-
eration at temperatures above the
UCT is permissible for short periods
of time. The maximum permissible
operating temperatures are specified
in the data sheets for the individual
type series under "Specifications
and characteristics in brief", section
"Useful life".
Maintenance
Make periodic inspections for the
capacitors that have been used in
the devices for industrial applica-
tions. Before the inspection, make
that the power supply is turned off
and carefully discharge the electricity
of the capacitors. To check the
capacitors, make sure of the polarity
when measuring the capacitors by
using a volt-ohm meter, for instance.
Also, do not apply any mechanical
stress to the capacitor terminals.
The following items should be
checked by the periodic inspections.
Significant damage to appearances:
venting, electrolyte leakage, etc.
Electrical characteristics: leakage
current, capacitance, tan
and other
characteristics prescribed in the
catalogs or product specifications.
If any of the above is found, replace
it or take any other proper measure.
Halogenated hydrocarbons may
cause serious damage if allowed to
come into contact with aluminum
electrolytic capacitors.
Mounting position
An overpressure vent ensures that
the gas can escape when the pres-
sure reaches a certain level.
To prevent electrolyte from leaking
out when the gas is “vented”, the
capacitor should be mounted in an
upright position (90°). All of these
mounting positions are intended to
avoid a vent-down installation of the
capacitor.
Mounting of single-ended
capacitors
For further information see page 67.
Soldering
Excessive time or temperature dur-
ing soldering will affect capacitor’s
characteristics and cause damage
to the insulation sleeve. Capacitors
should be dipped in solder for less
than 10 seconds. Contact of the
sleeve with soldering iron must be
avoided.
Soldering, cleaning agents
Halogenated hydrocarbons may
cause serious damage if allowed to
come into contact with aluminum
electrolytic capacitors. These sol-
vents may dissolve or decompose
the insulating film and reduce the in-
sulating properties to below the per-
missible level. The capacitor seals
may be affected and swell, and the
solvents may even penetrate them.
This will lead to premature compo-
nent failure.
Because of this, measures must be
taken to prevent electrolytic capaci-
tors from coming into contact with
the solvents when using halogenat-
ed hydrocarbon solvents to clean
printed circuit boards after soldering
the components, or to remove flux
residues. If it is not possible to pre-
vent the electrolytic capacitors from
being wetted by the solvent, halo-
gen-free solvents must be used in
order to eliminate the possibility of
damage.
Passive flammability
Under the influence of high external
energy, such as fire or electricity, the
flammable parts may get inflamed.
Clause 38 of the relevant specifica-
tion CECC 30000 (Harmonized
System of Quality Assessment for
Electronic Components; Generic
Specification: Fixed Capacitors)
refers to IEC Publication 695-2-2
(Needle Flame Test) for testing the
passive flammability of capacitors.
And in CECC 30000, severities and
requirements for different categories
of flammability are listed. Most of
aluminum electrolytic capacitors
meet the requirements of category C.
Active flammability
In rare cases the component may
ignite caused by heavy overload or
some capacitor defect. One reason
could be the following: During the
operation of an aluminum electrolytic
capacitor with nonsolid electrolyte,
there is a small quantity of hydrogen
developed in the component. Under
normal conditions, this gas perme-
ates easily out of the capacitor. But
under exceptional circumstances,
higher gas amounts may develop
and may catch fire if a sparking
would occur at the same time.
As explained above a fire risk can’t
be totally excluded. Therefore, it is
recommended to use special mea-
sures in critical applications (e.g. ad-
ditional encapsulation of the equip-
ment for mining applications).
07/05