Data Sheet
Aluminum electrolytic capacitors
Alu-X product lines
4-pin snap-in capacitors
Series/Type: B41201, B43201
Date: April 2008
© EPCOS AG 2008. Reproduction, publication and dissemination of this publication and the infor-
mation contained therein without EPCOS’ prior express consent is prohibited.
AEC-C_B41201_B43201.book Seite 1 Mittwoch, 16. April 2008 2:14 14
204/08
Please read Cautions and warnings and
Important notes at the end of this document.
General-purpose grade capacitors
Applications
Professional switch-mode power supplies
Features
High ripple current capability
RoHS-compatible
Load life of 2000 h at 85 °C
Construction
Aluminum case, fully insulated
Charge/discharge-proof
Minus pole marking on the insulating sleeve
Case with safety vent
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
AEC-C_B41201_B43201.book Seite 2 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
304/08
Please read Cautions and warnings and
Important notes at the end of this document.
Specifications and characteristics in brief
Rated voltage VR10 … 500 V DC
Operating tempera-
ture range
VR 250 V DC: –40 °C … +85 °C
VR 315 V DC: –25 °C … +85 °C
Rated capacitance CR
(20 °C, 120 Hz)
100 … 68000 µF
Capacitance tolerance ±20% M
Load life
(85 °C, VR, IAC,R)
2000 h Requirements:
C/C ±20% of initial value
tan δ≤ 2 times initial specified limit
Ileak initial specified limit
Leakage current Ileak
(20 °C, after 5 minutes)
Dissipation factor
(max.)
(20 °C, 120 Hz)
VR
(V DC)
10 16 25 35 50 63 80 100 160 ...
200
250 ...
400
450 ...
500
tan δ0.50 0.50 0.40 0.40 0.30 0.25 0.20 0.15 0.12 0.15 0.20
Low temperature sta-
bility (impedance ratio)
(120 Hz)
VR (V DC) 10 16 ... 160 200 ... 250 315 ... 400 450 ... 500
5478 8
18 15 12 ––
Shelf life After storage for 1000 h at 85 °C, the capacitors shall meet the requirement
of load life test after reforming process. After test: VR to be applied for
30 minutes, 24 to 48 hours before measurement.
Frequency multiplier
for rated ripple current
50 Hz 120 Hz 1 kHz 10 kHz 20 kHz
50 V 0.95 1.00 1.10 1.15 1.15
63 ... 100 V 0.95 1.00 1.16 1.30 1.33
160 V 0.90 1.00 1.20 1.50 1.55
Temperature multiplier
for rated ripple current
+40 °C +55 °C +70 °C +85 °C
<160 V 2.1 2.1 1.5 1.0
160 V 1.7 1.5 1.3 1.0
Ileak 0.02 µA CR
µF
------- VR
V
-------
⎝⎠
⎛⎞
Z 25 °C()
Z +20 °C()
---------------------------
Z40 °C()
Z +20 °C()
---------------------------
AEC-C_B41201_B43201.book Seite 3 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
404/08
Please read Cautions and warnings and
Important notes at the end of this document.
Dimensional drawing
Overview of available types B41201
VR
(V DC) 10 16 25 35
Case dimensions d × l (mm)
CR (µF)
12000 35 × 30
15000 35 × 35
18000 35 × 40
22000 35 × 30 35 × 45
27000 35 × 25 35 × 35
33000 35 × 25 35 × 30 35 × 40
39000 35 × 30 35 × 35 35 × 45
47000 35 × 30 35 × 40
56000 35 × 35 35 × 45
68000 35 × 40 35 × 50
KAL1136-W-E
Plus pole marking
d+1
Mounting holes
22.5±0.1
2±0.1
l+2
6.0±1
0.8
1.5±0.2
Minus pole marking
on the case wall
Safety vent
30
˚
30
˚
0.8+0.2
0.1
_
30 ±30’
˚
+
-
AEC-C_B41201_B43201.book Seite 4 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
504/08
Please read Cautions and warnings and
Important notes at the end of this document.
Overview of available types B41201
VR
(V DC) 50 63 80 100
Case dimensions d × l (mm)
CR (µF)
2700 35 × 30
3300 35 × 35
3900 35 × 35
4700 35 × 25 35 × 30 35 × 30 35 × 40
5600 35 × 25 35 × 30 35 × 35 35 × 45
6800 35 × 30 35 × 30 35 × 40
8200 35 × 30 35 × 35 35 × 45
10000 35 × 35 35 × 40
12000 35 × 40 35 × 45
15000 35 × 45
18000 35 × 50
Overview of available types B43201
VR
(V DC) 160 200 250 315
Case dimensions d × l (mm)
CR (µF)
180 35 × 20
220 35 × 20
270 35 × 25
330 35 × 20 35 × 30
390 35 × 20 35 × 20 35 × 30
470 35 × 20 35 × 25 35 × 35
560 35 × 20 35 × 20 35 × 25 35 × 40
680 35 × 20 35 × 25 35 × 30 35 × 45
820 35 × 25 35 × 30 35 × 35 35 × 50
1000 35 × 25 35 × 30 35 × 40
1200 35 × 30 35 × 35 35 × 45
1500 35 × 35 35 × 40 35 × 50
1800 35 × 40 35 × 45
AEC-C_B41201_B43201.book Seite 5 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
604/08
Please read Cautions and warnings and
Important notes at the end of this document.
Overview of available types B43201
VR
(V DC) 350 400 450 500
Case dimensions d × l (mm)
CR (µF)
100 35 × 20
120 35 × 20
150 35 × 20 35 × 25
180 35 × 20 35 × 25 35 × 25
220 35 × 35 35 × 25 35 × 30
270 35 × 25 35 × 30 35 × 35 35 × 45
330 35 × 30 35 × 30 35 × 40 35 × 50
390 35 × 35 35 × 35 35 × 45
470 35 × 40 35 × 40 35 × 50
560 35 × 45 35 × 45
680 35 × 50
AEC-C_B41201_B43201.book Seite 6 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
704/08
Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes B41201
VR
V DC
CR
120 Hz
20 °C
µF
Case
dimensions
d × l
mm
IAC,R
120 Hz
85 °C
A
Ordering code
10 33000 35 × 25 5.81 B41201D3339M000
39000 35 × 30 6.38 B41201C3399M000
47000 35 × 30 6.62 B41201C3479M000
56000 35 × 35 7.18 B41201B3569M000
68000 35 × 40 7.76 B41201A3689M000
16 27000 35 × 25 5.80 B41201C4279M000
33000 35 × 30 6.41 B41201B4339M000
39000 35 × 35 6.96 B41201B4399M000
47000 35 × 40 7.54 B41201B4479M000
56000 35 × 45 8.08 B41201A4569M000
68000 35 × 50 8.63 B41201A4689M000
25 22000 35 × 30 5.51 B41201B5229M000
27000 35 × 35 6.12 B41201B5279M000
33000 35 × 40 6.74 B41201B5339M000
39000 35 × 45 7.35 B41201A5399M000
35 12000 35 × 30 5.24 B41201B7129M000
15000 35 × 35 5.88 B41201B7159M000
18000 35 × 40 6.46 B41201B7189M000
22000 35 × 45 7.07 B41201A7229M000
50 4700 35 × 25 4.19 B41201D6478M000
5600 35 × 25 4.44 B41201D6568M000
6800 35 × 30 5.04 B41201D6688M000
8200 35 × 30 5.26 B41201C6828M000
10000 35 × 35 5.97 B41201B6109M000
12000 35 × 40 6.55 B41201B6129M000
15000 35 × 45 7.20 B41201A6159M000
18000 35 × 50 7.74 B41201A6189M000
63 4700 35 × 30 4.19 B41201D8478M000
5600 35 × 30 4.70 B41201C8568M000
6800 35 × 30 5.04 B41201C8688M000
8200 35 × 35 5.53 B41201B8828M000
10000 35 × 40 6.25 B41201B8109M000
12000 35 × 45 6.83 B41201A8129M000
AEC-C_B41201_B43201.book Seite 7 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
804/08
Please read Cautions and warnings and
Important notes at the end of this document.
80 4700 35 × 30 5.27 B41201C0478M000
5600 35 × 35 5.81 B41201B0568M000
6800 35 × 40 5.46 B41201A0688M000
8200 35 × 45 6.91 B41201A0828M000
100 2700 35 × 30 4.37 B41201C9278M000
3300 35 × 35 4.85 B41201C9338M000
3900 35 × 35 5.27 B41201B9398M000
4700 35 × 40 5.80 B41201B9478M000
5600 35 × 45 6.34 B41201A9568M000
Technical data and ordering codes B41201
VR
V DC
CR
120 Hz
20 °C
µF
Case
dimensions
d × l
mm
IAC,R
120 Hz
85 °C
A
Ordering code
AEC-C_B41201_B43201.book Seite 8 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
904/08
Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes B43201
VR
V DC
CR
120 Hz
20 °C
µF
Case
dimensions
d × l
mm
IAC,R
120 Hz
85 °C
A
Ordering code
160 560 35 × 20 2.12 B43201D1567M000
680 35 × 20 2.33 B43201D1687M000
820 35 × 25 2.73 B43201D1827M000
1000 35 × 25 3.01 B43201D1108M000
1200 35 × 30 3.26 B43201C1128M000
1500 35 × 35 3.83 B43201B1158M000
1800 35 × 40 4.39 B43201A1188M000
200 390 35 × 20 1.77 B43201D2397M000
470 35 × 20 1.94 B43201D2477M000
560 35 × 20 2.25 B43201D2567M000
680 35 × 25 2.48 B43201D2687M000
820 35 × 30 2.88 B43201D2827M000
1000 35 × 30 3.18 B43201B2108M000
1200 35 × 35 3.43 B43201B2128M000
1500 35 × 40 4.01 B43201B2158M000
1800 35 × 45 4.58 B43201A2188M000
250 330 35 × 20 1.62 B43201I2337M000
390 35 × 20 1.77 B43201I2397M000
470 35 × 25 2.06 B43201I2477M000
560 35 × 25 2.25 B43201I2567M000
680 35 × 30 2.62 B43201H2687M000
820 35 × 35 3.03 B43201G2827M000
1000 35 × 40 3.50 B43201G2108M000
1200 35 × 45 3.74 B43201F2128M000
1500 35 × 50 4.35 B43201F2158M000
315 180 35 × 20 1.20 B43201D0187M000
220 35 × 20 1.33 B43201D0227M000
270 35 × 25 1.56 B43201D0277M000
330 35 × 30 1.83 B43201D0337M000
390 35 × 30 1.99 B43201C0397M000
470 35 × 35 2.29 B43201B0477M000
560 35 × 40 2.62 B43201A0567M000
680 35 × 45 3.01 B43201A0687M000
820 35 × 50 3.44 B43201A0827M000
AEC-C_B41201_B43201.book Seite 9 Mittwoch, 16. April 2008 2:14 14
4-pin snap-in capacitors B41201, B43201
Standard series – 85 °C
10 04/08
Please read Cautions and warnings and
Important notes at the end of this document.
350 180 35 × 20 1.20 B43201D4187M000
220 35 × 35 1.41 B43201D4227M000
270 35 × 25 1.65 B43201C4277M000
330 35 × 30 1.83 B43201C4337M000
390 35 × 35 2.09 B43201B4397M000
470 35 × 40 2.40 B43201B4477M000
560 35 × 45 2.73 B43201A4567M000
680 35 × 50 3.13 B43201A4687M000
400 150 35 × 20 1.09 B43201D9157M000
180 35 × 25 1.28 B43201D9187M000
220 35 × 25 1.41 B43201D9227M000
270 35 × 30 1.65 B43201C9277M000
330 35 × 30 1.83 B43201C9337M000
390 35 × 35 2.09 B43201B9397M000
470 35 × 40 2.40 B43201B9477M000
560 35 × 45 2.73 B43201A9567M000
450 100 35 × 20 0.68 B43201D5107M000
120 35 × 20 0.75 B43201D5127M000
150 35 × 25 0.89 B43201D5157M000
180 35 × 25 0.98 B43201C5187M000
220 35 × 30 1.14 B43201C5227M000
270 35 × 35 1.33 B43201B5277M000
330 35 × 40 1.54 B43201B5337M000
390 35 × 45 1.74 B43201A5397M000
470 35 × 50 1.99 B43201A5477M000
500 270 35 × 45 1.45 B43201A6277M000
330 35 × 50 1.66 B43201A6337M000
Technical data and ordering codes B43201
VR
V DC
CR
120 Hz
20 °C
µF
Case
dimensions
d × l
mm
IAC,R
120 Hz
85 °C
A
Ordering code
AEC-C_B41201_B43201.book Seite 10 Mittwoch, 16. April 2008 2:14 14
11 04/08
Please read Cautions and warnings and
Important notes at the end of this document.
General
Also see “Important notes” on page 13.
1 Aluminum electrolytic capacitors have a bi-polar structure. This is marked on the body of the
capacitor. A capacitor must not be mounted with reversed polarity. The application of an AC
or reverse voltage may cause a short circuit or damage the capacitor. Bi-polar capacitors
must not be used in AC applications, where the polarity may be reversed in the circuits or is
unknown.
2 The DC voltage applied to the capacitor terminal must not exceed its rated operating voltage,
as this will result in a rapid increase of the leakage current and may damage the capacitor. It
is recommended to operate the capacitor at 7080% of its rated voltage to optimize its serv-
ice life.
3 The ripple current applied to the capacitor must be within the permitted range. An excessive
ripple current leads to impaired electrical properties and may damage the capacitor. Note that
the sum of the peak values of the ripple voltage and the DC operating voltage must not ex-
ceed the rated DC voltage.
4 Capacitors must be used within their permitted range of operating temperature. Operation at
room temperature optimizes their service life.
5 Capacitors with case diameter 8 mm are equipped with a safety vent. In capacitors fitted
with a lead or soldering lug, the safety vent is usually located at the base of the case. It needs
sufficient space around it to operate optimally. The following dimensions are recommended:
for case diameter d = 8 to 16 mm, more than 2 mm; for d =18 to 35 mm, more than 3 mm;
and for d = 42 mm or more, more than 5 mm.
6 Capacitors should not be mounted with the safety vent face down on the board. Do not locate
any wire or copper trace near the safety vent. Do not reverse the voltage, as this may result
in excess pressure and the leakage of electrolyte.
7 Gas is released through the safety vent when the pressure inside the capacitor is too high. A
gaseous liquid around the safety vent does not indicate a leakage of electrolyte.
8 The capacitor should be stored under conditions of normal temperature and in a non-acid,
non-alkali environment of normal humidity. Exposure to high temperatures, for example un-
der direct sunlight, will reduce its operating life. If the capacitor is stored in an environment
containing acids or alkalis, the solderability of the leads may be affected.
9 The leakage current of an aluminum electrolytic capacitor may increase after a long period
of storage. After such storage, the capacitor must be aged by applying the rated operating
voltage for 68 hours before use.
10 Manual soldering:
a Soldering must be performed within the specified conditions.
Bit temperature: 350 °C; application time of soldering iron: 3 seconds.
b Ensure that the soldering iron does not touch any part of the capacitor body.
Cautions and warnings
AEC-C_B41201_B43201.book Seite 11 Mittwoch, 16. April 2008 2:14 14
Cautions and warnings
12 04/08
Please read Cautions and warnings and
Important notes at the end of this document.
11 Do not apply excessive force to the leads and terminals. Do not move the capacitor after sol-
dering it onto the PC board and do not carry the PC board by gripping the capacitor. Observe
the following rules to prevent undue stress to the capacitor:
a Do not tilt or bend the capacitor after soldering.
b Ensure that the terminal spacing matches the corresponding hole spacing on the PC
board.
12 The aluminum case is not insulated from the cathode. Do not place a conductor under the
aluminum capacitors on the PC board as this may cause a short circuit. The case and top of
capacitors used in switched mode power supplies have a high-voltage-resistant heat shrink
sleeve to ensure safe usage.
13 The leads of capacitors with a case diameter exceeding 14 mm cannot be used for fixing.
AEC-C_B41201_B43201.book Seite 12 Mittwoch, 16. April 2008 2:14 14
Important notes
13 04/08
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
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer 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 properties described in the
product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of electronic components or failure
before the end of their usual service life cannot be completely ruled out in the current state
of the art, even if they are operated as specified. In customer applications requiring a very
high level of operational safety and especially in customer applications in which the malfunction
or failure of an 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 application or other action taken by the customer (e.g. installation of protective
circuitry or redundancy) that no injury or damage is sustained by third parties in the event of
malfunction or failure of an 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 substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our
Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more
detailed 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
specifications. Please check therefore to what extent product descriptions and specifications
contained in this publication are still applicable before or when you place an order.
We also reserve the right to discontinue production and delivery of products. Consequently,
we cannot guarantee that all products named in this publication will always be available. The
aforementioned does not apply in case of individual agreements deviating from the foregoing for
customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current version
of the “General Terms of Delivery for Products and Services in the Electrical Industry”
published by the German Electrical and Electronics Industry Association (ZVEI).
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSSP, CTVS, DSSP, MiniBlue, MKK,
MLSC, MotorCap, PCC, PhaseCap, PhaseMod, SIFERRIT, SIFI, SIKOREL, SilverCap,
SIMDAD, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks
registered or pending in Europe and in other countries. Further information will be found on
the Internet at www.epcos.com/trademarks.