Aluminum electrolytic capacitors
Axial-lead and soldering star capacitors
Series/Type:
Date:
B41691, B41791
November 2008
© EPCOS AG 2008. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Axial-lead and soldering star capacitors
Long useful life
up to 150
°C
B41691, B41791
Applications
For automotive applications up to 140
°C
Features
Long useful life, 2000 h at up to 150
°C
Low ESR also at 63 V DC
High ripple current capability
High vibration resistance
Shelf life 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.
Construction
Charge/discharge-proof, polar
Aluminum case with insulating sleeve
Negative pole connected to case
Terminals
Axial leads, welded to ensure perfect electrical contact
Also available with soldering stars
Taping and packing
Axial-lead capacitors will be delivered in pallet package.
Capacitors with d
×
l
≤
16
×
30 mm are also available taped
on reel.
Soldering star capacitors are packed in cardboard.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 16
B41691, B41791
Long useful life
up to 150
°C
Specifications and characteristics in brief
Rated voltage V
R
Surge voltage V
S
Rated capacitance C
R
Capacitance tolerance
Leakage current I
leak
(5 min, 20
°C)
Self-inductance ESL
1)
Diameter d (mm)
Terminals
axial
Length l (mm)
25
29
30
39
49
soldering star
25
30
39
Useful life
150
°C;
V
R
; 0.5 I
AC,R
125
°C;
V
R
; I
AC,R
125
°C;
V
R
; I
AC,max
105
°C;
V
R
; I
AC,max
85
°C;
V
R
; I
AC,max
40
°C;
V
R
; 2.1 I
AC,R
Voltage endurance test
125
°C;
V
R
> 2000 h
> 10000 h
> 4000 h
> 8000 h
> 15000 h
> 500000 h
5000 h
6
6
7
7
8
9
10
11
21
24
29
33
34
38
45
50
12
14
22
16
26
38
18
20/21
Approx. ESL (nH)
25 ... 63 V DC
1.15 V
R
100 ... 4000 µF
10/+30% Q
Requirements:
∆C/C ≤ ±30%
of initial value
ESR
≤
3 times initial specified limit
I
leak
≤
initial specified limit
Post test requirements:
∆C/C ≤ ±10%
of initial value
ESR
≤
1.3% initial specified limit
I
leak
≤
initial specified limit
Vibration resistance test
To IEC 60068-2-6, test Fc:
Displacement amplitude 1.5 mm, at 10 Hz ... 2 kHz,
acceleration max. 20
g,
duration 3
×
2 h.
Capacitor mounted by its wire leads at a distance of (6
±1)
mm from
the case and additionally clamped by the case.
To IEC 60068-1:
55/125/56 ( 55
°C/+125 °C/56
days damp heat test)
Similar to CECC 30301-802
IEC 60384-4
IEC climatic category
Detail specification
Sectional specification
1) If optimum circuit design is used, the values are lower by 30%.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 16
B41691, B41791
Long useful life
up to 150
°C
Axial-lead capacitors
Dimensional drawing
Dimensions, weights and packing units
d
×
l
mm
12
×
30
14
×
25
14
×
30
16
×
30
16
×
39
18
×
30
18
×
39
20
×
29
21
×
39
21
×
49
d
max
×
I
max
mm
12.5
×
30.5
14.5
×
25.5
14.5
×
30.5
16.5
×
30.5
16.5
×
40
18.5
×
30.5
18.5
×
40
20.5
×
29.5
21.5
×
40
21.5
×
50
Approx. weight
g
5.1
5.7
6.8
8.9
11.7
11.1
14.7
13.5
20.0
25.0
Packing units (pcs.)
Pallet
Reel
288
450
200
350
200
350
180
250
180
160
160
140
140
110
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 16
B41691, B41791
Long useful life
up to 150
°C
Soldering star capacitors
Dimensional drawing
Dimensions, weights and packing units
d
×
l
mm
12
×
30
14
×
25
14
×
30
16
×
30
16
×
39
18
×
30
18
×
39
d
max
×
I
max
mm
13.5
×
32
15.5
×
27
15.5
×
32
17.5
×
32
17.5
×
41.5
19.5
×
32
19.5
×
41.5
c
±0.1
mm
12.5
14.5
14.5
16.5
16.5
18.5
18.5
Approx. weight
g
5.4
6.1
7.2
9.4
12.2
11.8
15.4
Packing units
pcs.
480
480
480
300
200
300
200
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 16
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