B41754 [EPCOS]
Automotive -125; 汽车-125
EPCOS 
Capacitors with Screw Terminals
Automotive – 125 °C
B41754
B41754
SIKOREL® 125
Long-life grade capacitors
Applications
ꢀ High-reliability equipment in automotive power
electronics, e.g. integrated starter alternator
KAL0574-T
ꢀ Applications with highest ripple current load at high frequencies
Features
ꢀ Outstanding ripple current capability
ꢀ Optimized for high frequencies
ꢀ Optimized design for bottom cooling
ꢀ Low profile
ꢀ Vibration resistance 30 g upon request
ꢀ Stud mounting upon request
ꢀ Shelf life up to 10 years
ꢀ All-welded construction ensures reliable electrical contact
Construction
ꢀ Charge-discharge proof, polar
ꢀ Aluminum case without insulating sleeve
(for bottom cooling)
ꢀ Poles with screw terminal connections
ꢀ Mounting with ring clips or clamps
110 10/02
B41754
Automotive – 125 °C
Specifications and characteristics in brief
Rated voltage UR
Surge voltage US
Rated capacitance CR
Capacitance tolerance
Leakage current IL
(5 min, 20 °C)
25 ... 63 VDC
1,15 · UR
3 900 to 20 000 µF
± ±20 %
M
0,7
CR UR
ꢀ
.
IL ≤ 0,3 µA ⋅ ------- ⋅ -------
+ 4 µA
0
V
µF
Self-inductance ESL
Useful life
Approx. 13 nH
Requirements:
125 °C, UR; I~R
85 °C, UR; I~max
40 °C, UR; 3,4 · I~R
>
2 500 h
∆C/C
ESR
IL
≤ ± ±45 % of initial value
≤ 3 times initial specified limit
≤ initial specified limit
> 15 000 h
>200 000 h
Failure percentage: ≤ 1 %
Failure rate:
≤ 20 fit (≤ 20 · 10–9/h)
(for definiton “fit”, refer to chapter “Quality”, page 62)
Voltage endurance test 2 000 h
Post test requirements:
125 °C; UR; I~R
∆C/C
ESR
IL
≤ ± ±15 % of initial value
≤ 1,3 times initial specified limit
≤ initial specified limit
Vibration resistance
IEC climatic category
To IEC 60068-2-6, test Fc:
displacement amplitude 0,75 mm, frequency range 10 to 55 Hz,
acceleration max. 10 g, duration 3 × 2 h
Vibration resistance up to 30 g upon request
To IEC 60068-1:
55/125/56 (– 55 °C/+ 125 °C/56 days damp heat test)
Detail specifications
Similar to CECC 30301-803, CECC 30301-807
IEC 60384-4
Sectional specification
Ripple current capability
Due to the ripple current capability of the contact elements, the following current upper limits must
not be exceeded:
I~max = 50 A
In case of additional thermal cooling:
I~max = 55 A
111 10/02
B41754
Automotive – 125 °C
Dimensional drawing
1
d
d
ø
+
a
3
M5: Min. reach of screw = 8 mm
Positive pole marking:
+
KAL0824-B-E
Stud mounting upon request
Dimensions, weights and packing units
Terminal Dimensions (mm)
Approx.
Packing unit
d +0/–0,4 I ± 0,8 I 1 ± ±0,8 l3 +0,2/–1 d2 ± ±0,2 a +0,2/–0,4 weight (g) pieces
M 5
M 5
50,9
50,9
39,5
49,5
46,1
56,1
7,0
7,0
8,2
8,2
22,2
22,2
115
135
22
22
For ecological reasons the packing is pure cardboard.
Accessories
The following items are included in the delivery package, but are not fastened to the capacitors:
Thread Toothed
washers
Screws/Nuts
Maximum
torque
For terminals M 5
M 6
A 5,1 DIN 6797 Cylinder-head screw M 5 × 8 DIN 84-4.8
A 6,4 DIN 6797 Cylinder-head screw M 6 × 12 DIN 85-4.8 2,5 Nm
2
Nm
The following must be ordered separately:
Ring clips
Insulating parts
B44030 (cf. page 169)
B44020 (cf. page 166)
112 10/02
B41754
Automotive – 125 °C
Overview of available types
UR (VDC)
25
40
55
63
CR (µF)
3 900
Case dimensions d × l (mm)
50,9±×±39,5
50,9±×±49,5
4 700
50,9±×±39,5
50,9±×±49,5
6 000
7 500
50,9±×±39,5
50,9±×±49,5
12 000
20 000
50,9±×±39,5
50,9±×±49,5
Case dimensions and ordering codes
UR
CR
Case dimensions d × l Ordering code
VDC
µF
mm
25
40
55
63
12 000
20 000
7 500
12 000
4 700
7 500
3 900
6 000
50,9±×±39,5
50,9±×±49,5
50,9±×±39,5
50,9±×±49,5
50,9±×±39,5
50,9±×±49,5
50,9±×±39,5
50,9±×±49,5
B41754A5129M000
B41754A5209M000
B41754A7758M000
B41754A7129M000
B41754A0478M000
B41754A0758M000
B41754A8398M000
B41754A8608M000
113 10/02
B41754
Automotive – 125 °C
Technical data
CR
ESRtyp ESRmax ESRmax ESR max Zmax
100 Hz 100 Hz 100 Hz 10 kHz 10 kHz 10 kHz 10 kHz
I~max(B) I~max(B) I~R
I~R(B)
10 kHz 10 kHz
125 °C 125 °C
20 °C
mΩ
20 °C
mΩ
−40 °C 20 °C
20 °C
mΩ
85 °C
105 °C
A
µF
mΩ
mΩ
A
A
A
25 VDC
12 000 21
20 000 14
40 VDC
36
24
234
156
27
18
28
19
501)
501)
501)
501)
7,6
8,5
20
21
7 500 21
12 000 15
55 VDC
36
25
234
162
27
18
28
19
501)
501)
501)
501)
7,6
8,5
20
21
4 700 23
7 500 17
63 VDC
39
29
234
174
28
23
30
24
501)
501)
501)
501)
7,6
8,5
20
21
3 900 23
6 000 17
39
29
234
174
28
23
30
24
501)
501)
501)
501)
7,6
8,5
20
21
1) Max. 50 A due to max. terminal load
55 A in case of additional terminal cooling
114 10/02
B41754
Automotive – 125 °C
Useful life
depending on ambient temperature TA (for natural cooling) and versus temperature of case base TB
1)
(for base cooling) under ripple current operating conditions at UR
KAL0837-8
4,5
B41754
Ι
~
Ι~
;
Ι
~
Ι~
R (B)
R
3,5
3,0
2,5
2,0
1,5
1,0
0,5
0
40
50
60
70
80
90
100
110
120 ˚C 130
TA;TB
Depending on ambient temperature TA (for natural cooling) and versus temperature of case
1)
base TB (for base cooling) under ripple current operating conditions at Uop
UR = 25 V: Uop ≤±22 V
UR = 40 V: Uop ≤±35 V
UR = 55 V: Uop ≤±48 V
UR = 63 V: Uop ≤±55 V
KAL0838-G
4,5
B41754
Ι
~
Ι~
;
Ι
~
Ι~
R (B)
R
3,5
3,0
2,5
2,0
1,5
1,0
0,5
0
40
50
60
70
80
90
100
110
120 ˚C 130
TA;TB
3500 h rated service life at 125 °C;
up to 500 h (accumulated) operating at 150 °C in discontinous operation
1) Refer to page 40 for an explanation on how to interpret the useful life graphs.
115 10/02
B41754
Automotive – 125 °C
Frequency factor of permissible
ripple current I~
Frequency characteristics of ESR
typical behavior
versus frequency f
KAL0840-S
KAL0839-P
3,5
1,2
B41754
ESRf
B41754
Ι
~
f
ESR10 kHz
Ι
~
10 kHz
25 V, 40 V
63 V, 55 V
2,5
85 ˚C
60 ˚C
0,8
2,0
1,5
1,0
0,5
0
20 ˚C
_40 ˚C
0,6
0,4
0,2
0
101
102
103
104
kHz
f
102
103
Hz 104
f
Impedance Z
at different temperatures T
Typical behavior for 3900 µF/63 V
KAL0841-1
100
B41754
Ω
Z
_1
10
_40 ˚C
_25 ˚C
20 ˚C
_2
10
10
105 ˚C
_3
102
103
104
105 Hz 106
f
116 10/02
Herausgegeben von EPCOS AG
Unternehmenskommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND
++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne aus-
drückliche Genehmigung der EPCOS AG nicht gestattet.
Bestellungen unterliegen den vom ZVEI empfohlenen Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elek-
troindustrie, soweit nichts anderes vereinbart wird.
Diese Broschüre ersetzt die vorige Ausgabe.
Fragen über Technik, Preise und Liefermöglichkeiten richten Sie bitte an den Ihnen nächstgelegenen Vertrieb der EPCOS AG
oder an unsere Vertriebsgesellschaften im Ausland. Bauelemente können aufgrund technischer Erfordernisse Gefahrstoffe ent-
halten. Auskünfte darüber bitten wir unter Angabe des betreffenden Typs ebenfalls über die zuständige Vertriebsgesellschaft ein-
zuholen.
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 Representa-
tives.
Due to technical requirements components may contain dangerous substances. For information on the type in question please
also contact one of our Sales Offices.
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