Aluminum electrolytic capacitors
Snap-in capacitors
Series/Type: B41231
Date: November 2012
© EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
General-purpose grade capacitors
Applications
Professional power supplies
Features
High ripple current capability
RoHS-compatible
Useful life of 2000 h at 85 °C
Construction
Aluminum case, fully insulated
Snap-in solder pins to hold component in place on PC-board
Minus pole marking on the insulating sleeve
Case with safety vent
Snap-in capacitors B41231
Standard 85 °C
Page 2 of 21Please read Cautions and warnings and
Important notes at the end of this document.
1) Refer to chapter "General technical information, 5 Useful life" on how to interpret useful life.
Specifications and characteristics in brief
Rated voltage VR10 ... 100 V DC
Surge voltage VS1.15 VR(at room temperature)
Rated capacitance CR1200 ... 68000 µF
Capacitance tolerance ±20% M
Dissipation factor (max.)
(20 °C, 120 Hz)
VR(V DC) 10 16 25 35 50 63 80 100
tan δ0.50 0.50 0.40 0.40 0.30 0.25 0.20 0.15
Leakage current Ileak
(20 °C, after 5 minutes)
Useful life1)
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
Vibration resistance
test
To IEC 60068-2-6, test Fc:
Frequency range 10 Hz ... 55 Hz, displacement amplitude 0.75 mm,
acceleration max. 10 g, duration 3 ×2 h.
Capacitor rigidly clamped by the aluminum case
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: VRto be
applied for 30 minutes, 24 to 48 hours before measurement.
Operating temperature
range
40 °C ... +85 °C
Characteristics at low
temperature
Max. impe-
dance ratio
at 120 Hz
VR10 V 16 ... 100 V
Z-25 °C/Z20 °C5 4
Z-40 °C/Z20 °C18 15
IEC climatic category To IEC 60068-1:
25/085/56 (25 °C/+85 °C/56 days damp heat test)
Sectional specification IEC 60384-4
B41231
Standard 85 °C
Page 3 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Dimensional drawing
Snap-in terminals, length (6.0 ±1) mm.
Also available in a shorter version with a
length of (4.5 1) mm.
Snap-in capacitors are also available with
3 terminals (length (4.5 1) mm).
Dimensions (mm) Approx.
weight (g)
Packing
units (pcs.)
d +1 l ±2
22 25 13.0 160
22 30 15.0 160
22 35 20.5 160
22 40 23.0 160
22 45 25.0 160
22 50 29.5 160
25.4 25 13.5 130
25.4 30 19.5 130
25.4 35 25.0 130
25.4 40 28.0 130
25.4 45 31.0 130
25.4 50 39.0 130
Dimensions (mm) Approx.
weight (g)
Packing
units (pcs.)
d +1 l ±2
30 25 24.5 80
30 30 25.5 80
30 35 32.5 80
30 40 39.0 80
30 45 43.5 80
30 50 55.5 80
35 25 35.0 60
35 30 43.0 60
35 35 50.5 60
35 40 52.0 60
35 45 65.0 60
35 50 70.5 60
B41231
Standard 85 °C
Page 4 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Ordering codes for terminal styles and insulation features
Identification in 3rd block of ordering code
Snap-in capacitors
Terminal version Insulation version
PVC PET
Standard terminals 6.0 mm M000 M060
Short terminals 4.5 mm M007 M067
3 terminals 4.5 mm M002 M062
Ordering examples:
B41231A9478M007 } snap-in capacitor with short terminals and standard PVC insulation
B41231A9478M062 } snap-in capacitor with 3 terminals and PET insulation
B41231
Standard 85 °C
Page 5 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Overview of available types
VR(V DC) 10 16 25 35 50 63 80 100
Case dimensions d ×l (mm)
CR(µF)
1200 22 ×25 22 ×30
25.4 ×25
1500 22 ×30 22 ×35
25.4 ×30
30 ×25
1800 22 ×25 22 ×30
25.4 ×25
22 ×40
25.4 ×35
30 ×30
2200 22 ×30
25.4 ×25
22 ×35
25.4 ×30
30 ×25
22 ×45
25.4 ×40
30 ×30
2700 22 ×35
25.4 ×30
22 ×40
25.4 ×35
30 ×30
25.4 ×45
30 ×35
35 ×30
3300 22 ×30
25.4 ×25
22 ×35
25.4 ×30
30 ×25
22 ×45
25.4 ×40
30 ×30
25.4 ×50
30 ×40
35 ×35
3900 22 ×40
25.4 ×35
30 ×30
22 ×50
25.4 ×45
30 ×35
30 ×45
35 ×35
4700 22 ×30
25.4 ×25
22 ×40
25.4 ×35
30 ×25
35 ×25
22 ×50
25.4 ×40
30 ×35
35 ×30
25.4 ×50
30 ×40
35 ×30
30 ×50
35 ×40
5600 22 ×25 22 ×35
25.4 ×30
22 ×45
25.4 ×40
30 ×30
35 ×25
25.4 ×45
30 ×35
35 ×30
30 ×45
35 ×35
35 ×45
6800 22 ×30
25.4 ×25
22 ×40
25.4 ×30
30 ×25
22 ×50
25.4 ×45
30 ×35
35 ×30
25.4 ×50
30 ×40
35 ×30
35 ×40
8200 22 ×35
25.4 ×30
22 ×45
25.4 ×35
30 ×30
25.4 ×50
30 ×40
35 ×30
30 ×45
35 ×35
35 ×45
B41231
Standard 85 °C
Page 6 of 21Please read Cautions and warnings and
Important notes at the end of this document.
VR(V DC) 10 16 25 35 50 63 80 100
Case dimensions d ×l (mm)
CR(µF)
10000 22 ×25 22 ×40
25.4 ×30
22 ×50
25.4 ×40
30 ×30
30 ×45
35 ×35
30 ×50
35 ×40
12000 22 ×25 22 ×30
25.4 ×25
22 ×45
25.4 ×35
30 ×25
25.4 ×45
30 ×35
35 ×30
30 ×50
35 ×40
35 ×45
15000 22 ×30
25.4 ×25
22 ×35
25.4 ×30
30 ×25
22 ×50
25.4 ×40
30 ×30
30 ×40
35 ×35
35 ×45
18000 22 ×35
25.4 ×25
22 ×40
25.4 ×35
30 ×30
25.4 ×45
30 ×35
30 ×45
35 ×40
35 ×50
22000 22 ×40
25.4 ×30
30 ×25
22 ×50
25.4 ×40
30 ×30
30 ×35
35 ×30
35 ×45
27000 22 ×45
25.4 ×35
30 ×30
25.4 ×45
30 ×35
35 ×25
30 ×45
35 ×35
33000 22 ×50
25.4 ×40
30 ×30
35 ×25
30 ×40
35 ×30
30 ×50
35 ×40
39000 25.4 ×45
30 ×35
35 ×30
30 ×45
35 ×35
35 ×45
47000 25.4 ×50
30 ×40
35 ×30
30 ×50
35 ×40
56000 30 ×45
35 ×35
35 ×45
68000 35 ×40 35 ×50
B41231
Standard 85 °C
Page 7 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes
CR
120 Hz
20 °C
µF
Case
dimensions
d×l
mm
tan δmax
120 Hz
20 °C
IAC,max
120 Hz
60 °C
A
IAC,R
120 Hz
85 °C
A
Ordering code
(composition see below)
Composition of ordering code
* = Insulation feature # = Terminal style
0 = PVC insulation
6 = PET insulation
0 = snap-in standard terminals (6.0 ±1 mm)
2 = snap-in 3 terminals (4.5 1 mm)
7 = snap-in short terminals (4.5 1 mm)
VR= 10 V DC
12000 22 ×25 0.50 6.55 3.31 B41231A3129M0*#
15000 22 ×30 0.50 7.56 3.82 B41231A3159M0*#
15000 25.4 ×25 0.50 6.71 3.39 B41231B3159M0*#
18000 22 ×35 0.50 8.47 4.28 B41231A3189M0*#
18000 25.4 ×25 0.50 8.26 4.17 B41231B3189M0*#
22000 22 ×40 0.50 9.48 4.79 B41231A3229M0*#
22000 25.4 ×30 0.50 9.33 4.71 B41231B3229M0*#
22000 30 ×25 0.50 9.56 4.83 B41231C3229M0*#
27000 22 ×45 0.50 10.49 5.30 B41231A3279M0*#
27000 25.4 ×35 0.50 10.41 5.26 B41231B3279M0*#
27000 30 ×30 0.50 10.71 5.41 B41231C3279M0*#
33000 22 ×50 0.50 11.52 5.82 B41231A3339M0*#
33000 25.4 ×40 0.50 11.50 5.81 B41231B3339M0*#
33000 30 ×30 0.50 11.27 5.69 B41231C3339M0*#
33000 35 ×25 0.50 11.50 5.81 B41231D3339M0*#
39000 25.4 ×45 0.50 12.49 6.31 B41231A3399M0*#
39000 30 ×35 0.50 12.32 6.22 B41231B3399M0*#
39000 35 ×30 0.50 12.63 6.38 B41231C3399M0*#
47000 25.4 ×50 0.50 13.52 6.83 B41231A3479M0*#
47000 30 ×40 0.50 13.42 6.78 B41231B3479M0*#
47000 35 ×30 0.50 13.11 6.62 B41231C3479M0*#
56000 30 ×45 0.50 14.47 7.31 B41231A3569M0*#
56000 35 ×35 0.50 14.22 7.18 B41231B3569M0*#
68000 35 ×40 0.50 15.36 7.76 B41231A3689M0*#
VR= 16 V DC
10000 22 ×25 0.50 6.57 3.32 B41231A4109M0*#
12000 22 ×30 0.50 7.03 3.55 B41231A4129M0*#
12000 25.4 ×25 0.50 7.70 3.89 B41231B4129M0*#
15000 22 ×35 0.50 8.49 4.29 B41231A4159M0*#
15000 25.4 ×30 0.50 8.81 4.45 B41231B4159M0*#
15000 30 ×25 0.50 9.03 4.56 B41231C4159M0*#
B41231
Standard 85 °C
Page 8 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes
CR
120 Hz
20 °C
µF
Case
dimensions
d×l
mm
tan δmax
120 Hz
20 °C
IAC,max
120 Hz
60 °C
A
IAC,R
120 Hz
85 °C
A
Ordering code
(composition see below)
Composition of ordering code
* = Insulation feature # = Terminal style
0 = PVC insulation
6 = PET insulation
0 = snap-in standard terminals (6.0 ±1 mm)
2 = snap-in 3 terminals (4.5 1 mm)
7 = snap-in short terminals (4.5 1 mm)
VR= 16 V DC
18000 22 ×40 0.50 9.44 4.77 B41231A4189M0*#
18000 25.4 ×35 0.50 9.82 4.96 B41231B4189M0*#
18000 30 ×30 0.50 10.10 5.10 B41231C4189M0*#
22000 22 ×50 0.50 10.91 5.51 B41231A4229M0*#
22000 25.4 ×40 0.50 10.91 5.51 B41231B4229M0*#
22000 30 ×30 0.50 10.67 5.39 B41231C4229M0*#
27000 25.4 ×45 0.50 12.00 6.06 B41231A4279M0*#
27000 30 ×35 0.50 11.84 5.98 B41231B4279M0*#
27000 35 ×25 0.50 11.48 5.80 B41231C4279M0*#
33000 30 ×40 0.50 12.99 6.56 B41231A4339M0*#
33000 35 ×30 0.50 12.69 6.41 B41231B4339M0*#
39000 30 ×45 0.50 14.02 7.08 B41231A4399M0*#
39000 35 ×35 0.50 13.78 6.96 B41231B4399M0*#
47000 30 ×50 0.50 15.09 7.62 B41231A4479M0*#
47000 35 ×40 0.50 14.93 7.54 B41231B4479M0*#
56000 35 ×45 0.50 16.00 8.08 B41231A4569M0*#
68000 35 ×50 0.50 16.89 8.53 B41231A4689M0*#
VR= 25 V DC
5600 22 ×25 0.40 5.25 2.65 B41231A5568M0*#
6800 22 ×30 0.40 6.06 3.06 B41231A5688M0*#
6800 25.4 ×25 0.40 6.24 3.15 B41231B5688M0*#
8200 22 ×35 0.40 6.83 3.45 B41231A5828M0*#
8200 25.4 ×30 0.40 7.07 3.57 B41231B5828M0*#
10000 22 ×40 0.40 7.82 3.95 B41231A5109M0*#
10000 25.4 ×30 0.40 7.70 3.89 B41231B5109M0*#
12000 22 ×45 0.40 8.73 4.41 B41231A5129M0*#
12000 25.4 ×35 0.40 8.65 4.37 B41231B5129M0*#
12000 30 ×25 0.40 7.90 3.99 B41231C5129M0*#
15000 22 ×50 0.40 9.78 4.94 B41231A5159M0*#
15000 25.4 ×40 0.40 9.78 4.94 B41231B5159M0*#
15000 30 ×30 0.40 8.91 4.50 B41231C5159M0*#
B41231
Standard 85 °C
Page 9 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes
CR
120 Hz
20 °C
µF
Case
dimensions
d×l
mm
tan δmax
120 Hz
20 °C
IAC,max
120 Hz
60 °C
A
IAC,R
120 Hz
85 °C
A
Ordering code
(composition see below)
Composition of ordering code
* = Insulation feature # = Terminal style
0 = PVC insulation
6 = PET insulation
0 = snap-in standard terminals (6.0 ±1 mm)
2 = snap-in 3 terminals (4.5 1 mm)
7 = snap-in short terminals (4.5 1 mm)
VR= 25 V DC
18000 25.4 ×45 0.40 10.79 5.45 B41231A5189M0*#
18000 30 ×35 0.40 10.10 5.10 B41231B5189M0*#
22000 30 ×35 0.40 10.65 5.38 B41231A5229M0*#
22000 35 ×30 0.40 10.91 5.51 B41231B5229M0*#
27000 30 ×45 0.40 12.32 6.22 B41231A5279M0*#
27000 35 ×35 0.40 12.12 6.12 B41231B5279M0*#
33000 30 ×50 0.40 13.50 6.82 B41231A5339M0*#
33000 35 ×40 0.40 13.35 6.74 B41231B5339M0*#
39000 35 ×45 0.40 14.55 7.35 B41231A5399M0*#
VR= 35 V DC
4700 22 ×30 0.40 6.06 3.06 B41231A7478M0*#
4700 25.4 ×25 0.40 5.90 2.98 B41231B7478M0*#
5600 22 ×35 0.40 6.49 3.28 B41231A7568M0*#
5600 25.4 ×30 0.40 6.71 3.39 B41231B7568M0*#
6800 22 ×40 0.40 7.39 3.73 B41231A7688M0*#
6800 25.4 ×30 0.40 7.27 3.67 B41231B7688M0*#
6800 30 ×25 0.40 7.44 3.76 B41231C7688M0*#
8200 22 ×45 0.40 8.18 4.13 B41231A7828M0*#
8200 25.4 ×35 0.40 8.12 4.10 B41231B7828M0*#
8200 30 ×30 0.40 8.36 4.22 B41231C7828M0*#
10000 22 ×50 0.40 9.27 4.68 B41231A7109M0*#
10000 25.4 ×40 0.40 9.27 4.68 B41231B7109M0*#
10000 30 ×30 0.40 9.07 4.58 B41231C7109M0*#
12000 25.4 ×45 0.40 10.26 5.18 B41231A7129M0*#
12000 30 ×35 0.40 10.12 5.11 B41231C7129M0*#
12000 35 ×30 0.40 10.38 5.24 B41231D7129M0*#
15000 30 ×40 0.40 11.33 5.72 B41231A7159M0*#
15000 35 ×35 0.40 11.64 5.88 B41231B7159M0*#
18000 30 ×45 0.40 12.43 6.28 B41231A7189M0*#
18000 35 ×40 0.40 12.79 6.46 B41231B7189M0*#
22000 35 ×45 0.40 14.00 7.07 B41231A7229M0*#
B41231
Standard 85 °C
Page 10 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes
CR
120 Hz
20 °C
µF
Case
dimensions
d×l
mm
tan δmax
120 Hz
20 °C
IAC,max
120 Hz
60 °C
A
IAC,R
120 Hz
85 °C
A
Ordering code
(composition see below)
Composition of ordering code
* = Insulation feature # = Terminal style
0 = PVC insulation
6 = PET insulation
0 = snap-in standard terminals (6.0 ±1 mm)
2 = snap-in 3 terminals (4.5 1 mm)
7 = snap-in short terminals (4.5 1 mm)
VR= 50 V DC
3300 22 ×30 0.30 5.88 2.97 B41231A6338M0*#
3300 25.4 ×25 0.30 7.58 3.06 B41231B6338M0*#
4700 22 ×40 0.30 7.58 3.83 B41231A6478M0*#
4700 25.4 ×35 0.30 7.88 3.98 B41231B6478M0*#
4700 30 ×25 0.30 7.64 3.86 B41231C6478M0*#
4700 35 ×25 0.30 8.30 4.19 B41231D6478M0*#
5600 22 ×45 0.30 8.43 4.26 B41231A6568M0*#
5600 25.4 ×40 0.30 8.79 4.44 B41231B6568M0*#
5600 30 ×30 0.30 8.61 4.35 B41231C6568M0*#
5600 35 ×25 0.30 8.79 4.44 B41231D6568M0*#
6800 22 ×50 0.30 9.44 4.77 B41231A6688M0*#
6800 25.4 ×45 0.30 9.42 4.76 B41231B6688M0*#
6800 30 ×35 0.30 9.74 4.92 B41231C6688M0*#
6800 35 ×30 0.30 9.98 5.04 B41231D6688M0*#
8200 25.4 ×50 0.30 10.75 5.43 B41231A6828M0*#
8200 30 ×40 0.30 10.65 5.38 B41231B6828M0*#
8200 35 ×30 0.30 10.41 5.26 B41231C6828M0*#
10000 30 ×45 0.30 12.02 6.07 B41231A6109M0*#
10000 35 ×35 0.30 11.82 5.97 B41231B6109M0*#
12000 30 ×50 0.30 13.11 6.62 B41231A6129M0*#
12000 35 ×40 0.30 12.97 6.55 B41231B6129M0*#
15000 35 ×45 0.30 14.26 7.20 B41231A6159M0*#
18000 35 ×50 0.30 15.33 7.74 B41231A6189M0*#
VR= 63 V DC
1800 22 ×25 0.25 4.36 2.20 B41231A8188M0*#
2200 22 ×30 0.25 4.95 2.50 B41231A8228M0*#
2200 25.4 ×25 0.25 5.11 2.58 B41231B8228M0*#
2700 22 ×35 0.25 5.82 2.94 B41231A8278M0*#
2700 25.4 ×30 0.25 6.02 3.04 B41231B8278M0*#
3300 22 ×35 0.25 6.22 3.14 B41231A8338M0*#
3300 25.4 ×30 0.25 6.45 3.26 B41231B8338M0*#
3300 30 ×25 0.25 6.61 3.34 B41231C8338M0*#
B41231
Standard 85 °C
Page 11 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes
CR
120 Hz
20 °C
µF
Case
dimensions
d×l
mm
tan δmax
120 Hz
20 °C
IAC,max
120 Hz
60 °C
A
IAC,R
120 Hz
85 °C
A
Ordering code
(composition see below)
Composition of ordering code
* = Insulation feature # = Terminal style
0 = PVC insulation
6 = PET insulation
0 = snap-in standard terminals (6.0 ±1 mm)
2 = snap-in 3 terminals (4.5 1 mm)
7 = snap-in short terminals (4.5 1 mm)
VR= 63 V DC
3900 22 ×40 0.25 7.13 3.60 B41231A8398M0*#
3900 25.4 ×35 0.25 7.41 3.74 B41231B8398M0*#
3900 30 ×30 0.25 7.62 3.85 B41231C8398M0*#
4700 22 ×50 0.25 8.30 4.19 B41231A8478M0*#
4700 25.4 ×40 0.25 8.30 4.19 B41231B8478M0*#
4700 30 ×35 0.25 8.12 4.10 B41231C8478M0*#
4700 35 ×30 0.25 8.30 4.19 B41231D8478M0*#
5600 25.4 ×45 0.25 9.21 4.65 B41231A8568M0*#
5600 30 ×35 0.25 9.07 4.58 B41231B8568M0*#
5600 35 ×30 0.25 9.31 4.70 B41231C8568M0*#
6800 25.4 ×50 0.25 10.30 5.20 B41231A8688M0*#
6800 30 ×40 0.25 10.22 5.16 B41231B8688M0*#
6800 35 ×30 0.25 9.98 5.04 B41231C8688M0*#
8200 30 ×45 0.25 11.13 5.62 B41231A8828M0*#
8200 35 ×35 0.25 10.95 5.53 B41231B8828M0*#
10000 30 ×50 0.25 12.51 6.32 B41231A8109M0*#
10000 35 ×40 0.25 12.38 6.25 B41231B8109M0*#
12000 35 ×45 0.25 13.52 6.83 B41231A8129M0*#
VR= 80 V DC
1200 22 ×25 0.20 4.44 2.24 B41231A0128M0*#
1500 22 ×30 0.20 5.29 2.67 B41231A0158M0*#
1800 22 ×30 0.20 5.78 2.92 B41231A0188M0*#
1800 25.4 ×25 0.20 5.96 3.01 B41231B0188M0*#
2200 22 ×35 0.25 6.44 3.25 B41231A0228M0*#
2200 25.4 ×30 0.20 6.65 3.36 B41231B0228M0*#
2200 30 ×25 0.20 6.83 3.45 B41231C0228M0*#
2700 22 ×40 0.20 7.50 3.79 B41231A0278M0*#
2700 25.4 ×35 0.20 7.80 3.94 B41231B0278M0*#
2700 30 ×30 0.20 8.02 4.05 B41231C0278M0*#
3300 22 ×45 0.20 8.28 4.18 B41231A0338M0*#
3300 25.4 ×40 0.20 8.63 4.36 B41231B0338M0*#
3300 30 ×30 0.20 8.45 4.27 B41231C0338M0*#
B41231
Standard 85 °C
Page 12 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Technical data and ordering codes
CR
120 Hz
20 °C
µF
Case
dimensions
d×l
mm
tan δmax
120 Hz
20 °C
IAC,max
120 Hz
60 °C
A
IAC,R
120 Hz
85 °C
A
Ordering code
(composition see below)
Composition of ordering code
* = Insulation feature # = Terminal style
0 = PVC insulation
6 = PET insulation
0 = snap-in standard terminals (6.0 ±1 mm)
2 = snap-in 3 terminals (4.5 1 mm)
7 = snap-in short terminals (4.5 1 mm)
VR= 80 V DC
3900 22 ×50 0.25 9.41 4.75 B41231A0398M0*#
3900 25.4 ×45 0.20 9.82 4.96 B41231B0398M0*#
3900 30 ×35 0.20 9.68 4.89 B41231C0398M0*#
4700 25.4 ×50 0.20 10.77 5.44 B41231A0478M0*#
4700 30 ×40 0.20 10.67 5.39 B41231B0478M0*#
4700 35 ×30 0.20 10.43 5.27 B41231C0478M0*#
5600 30 ×45 0.20 11.70 5.91 B41231A0568M0*#
5600 35 ×35 0.20 11.50 5.81 B41231B0568M0*#
6800 35 ×40 0.20 10.81 5.46 B41231A0688M0*#
8200 35 ×45 0.20 13.68 6.91 B41231A0828M0*#
VR= 100 V DC
1200 22 ×30 0.15 4.73 2.39 B41231A9128M0*#
1200 25.4 ×25 0.15 4.87 2.46 B41231B9128M0*#
1500 22 ×35 0.15 5.60 2.83 B41231A9158M0*#
1500 25.4 ×30 0.15 5.80 2.93 B41231B9158M0*#
1500 30 ×25 0.15 5.94 3.00 B41231C9158M0*#
1800 22 ×40 0.15 6.45 3.26 B41231A9188M0*#
1800 25.4 ×35 0.15 6.71 3.39 B41231B9188M0*#
1800 30 ×30 0.15 6.91 3.49 B41231C9188M0*#
2200 22 ×45 0.15 7.09 3.58 B41231A9228M0*#
2200 25.4 ×40 0.15 7.41 3.74 B41231B9228M0*#
2200 30 ×30 0.15 7.25 3.66 B41231C9228M0*#
2700 25.4 ×45 0.15 8.57 4.33 B41231A9278M0*#
2700 30 ×35 0.15 8.45 4.27 B41231B9278M0*#
2700 35 ×30 0.15 8.65 4.37 B41231C9278M0*#
3300 25.4 ×50 0.15 9.42 4.76 B41231A9338M0*#
3300 30 ×40 0.15 9.35 4.72 B41231B9338M0*#
3300 35 ×35 0.15 9.60 4.85 B41231C9338M0*#
3900 30 ×45 0.15 10.61 5.36 B41231A9398M0*#
3900 35 ×35 0.15 10.43 5.27 B41231B9398M0*#
4700 30 ×50 0.15 11.60 5.86 B41231A9478M0*#
4700 35 ×40 0.15 11.48 5.80 B41231B9478M0*#
5600 35 ×45 0.15 12.55 6.34 B41231A9568M0*#
B41231
Standard 85 °C
Page 13 of 21Please read Cautions and warnings and
Important notes at the end of this document.
1) Refer to chapter "General technical information, 5 Useful life" on how to interpret useful life.
Useful life1)
depending on ambient temperature TAunder ripple current operating conditions
Frequency factor of permissible ripple
current IAC versus frequency f
Frequency characteristics of ESR
Typical behavior
B41231
Standard 85 °C
Page 14 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Impedance Z versus frequency f
Typical behavior at 20 °C
B41231
Standard 85 °C
Page 15 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Cautions and warnings
Personal safety
The electrolytes used by EPCOS have been optimized both with a view to the intended
application and 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, some of the high-voltage electrolytes used by EPCOS are self-extinguishing.
As far as possible, EPCOS does not use any dangerous chemicals or compounds to produce
operating electrolytes. However, in exceptional cases, such materials must be used in order to
achieve specific physical and electrical properties because no alternative materials are currently
known. However, the amount of dangerous materials used in our products is limited to an
absolute minimum.
Materials and chemicals used in EPCOS aluminum electrolytic capacitors are continuously
adapted in compliance with the EPCOS Corporate Environmental Policy and the latest EU
regulations and guidelines such as RoHS, REACH/SVHC, GADSL, and ELV.
MDS (Material Data Sheets) are available on the EPCOS website for all types listed in the data
book. MDS for customer specific capacitors are available upon request.
MSDS (Material Safety Data Sheets) are available for all of our electrolytes upon request.
Nevertheless, the following rules should be observed when handling aluminum electrolytic
capacitors: No electrolyte should come into contact with eyes or skin. If electrolyte does come
into contact with the skin, wash the affected areas immediately with running water. If the eyes are
affected, rinse them for 10 minutes with plenty of water. If symptoms persist, seek medical
treatment. Avoid inhaling 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.
B41231
Standard 85 °C
Page 16 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Product safety
The table below summarizes the safety instructions that must be observed without fail. A detailed
description can be found in the relevant sections of chapter "General technical information".
Topic Safety information Reference
chapter "General
technical information"
Polarity Make sure that polar capacitors are connected
with the right polarity.
1
"Basic construction of
aluminum electrolytic
capacitors"
Reverse voltage Voltages polarity classes should be prevented by
connecting a diode.
3.1.6
"Reverse voltage"
Mounting
position of screw-
terminal capacitors
Do not mount the capacitor with the terminals
(safety vent) upside down.
11.1.
"Mounting positions of
capacitors with screw
terminals"
Robustness of
terminals
The following maximum tightening torques must
not be exceeded when connecting screw
terminals:
M5: 2.5 Nm
M6: 4.0 Nm
11.3
"Mounting torques"
Mounting of
single-ended
capacitors
The internal structure of single-ended capacitors
might 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 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.
11.4
"Mounting
considerations for
single-ended capacitors"
Soldering Do not exceed the specified time or temperature
limits during soldering.
11.5
"Soldering"
Soldering,
cleaning agents
Do not allow halogenated hydrocarbons to come
into contact with aluminum electrolytic capacitors.
11.6
"Cleaning agents"
Upper category
temperature
Do not exceed the upper category temperature. 7.2
"Maximum permissible
operating temperature"
Passive
flammability
Avoid external energy, such as fire or electricity. 8.1
"Passive flammability"
B41231
Standard 85 °C
Page 17 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Topic Safety information Reference
chapter "General
technical information"
Active
flammability
Avoid overload of the capacitors. 8.2
"Active flammability"
Maintenance 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.
10
"Maintenance"
Storage Do not store capacitors at high temperatures or
high humidity. Capacitors should be stored at
+5 to +35 °C and a relative humidity of ≤75%.
7.3
Storage conditions
Reference
chapter "Capacitors with
screw terminals"
Breakdown strength
of insulating
sleeves
Do not damage the insulating sleeve, especially
when ring clips are used for mounting.
"Screw terminals
accessories"
B41231
Standard 85 °C
Page 18 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Symbols and terms
Symbol English German
C Capacitance Kapazität
CRRated capacitance Nennkapazität
CSSeries capacitance Serienkapazität
CS,T Series capacitance at temperature T Serienkapazität bei Temperatur T
CfCapacitance at frequency f Kapazität bei Frequenz f
d Case diameter, nominal dimension Gehäusedurchmesser, Nennmaß
dmax Maximum case diameter Maximaler Gehäusedurchmesser
ESL Self-inductance Eigeninduktivität
ESR Equivalent series resistance Ersatzserienwiderstand
ESRfEquivalent series resistance at
frequency f
Ersatzserienwiderstand bei Frequenz f
ESRTEquivalent series resistance at
temperature T
Ersatzserienwiderstand bei Temperatur T
f Frequency Frequenz
I Current Strom
IAC Alternating current (ripple current) Wechselstrom
IAC,rms Root-mean-square value of alternating
current
Wechselstrom, Effektivwert
IAC,f Ripple current at frequency f Wechselstrom bei Frequenz f
IAC,max Maximum permissible ripple current Maximal zulässiger Wechselstrom
IAC,R Rated ripple current Nennwechselstrom
IAC,R (B) Rated ripple current for base cooling Nennwechselstromstrom für Bodenkühlung
Ileak Leakage current Reststrom
Ileak,op Operating leakage current Betriebsreststrom
l Case length, nominal dimension Gehäuselänge, Nennmaß
lmax Maximum case length (without
terminals and mounting stud)
Maximale Gehäuselänge (ohne Anschlüsse
und Gewindebolzen)
R Resistance Widerstand
Rins Insulation resistance Isolationswiderstand
Rsymm Balancing resistance Symmetrierwiderstand
T Temperature Temperatur
∆T Temperature difference Temperaturdifferenz
TAAmbient temperature Umgebungstemperatur
TCCase temperature Gehäusetemperatur
TBCapacitor base temperature Temperatur des Becherbodens
t Time Zeit
∆t Period Zeitraum
tbService life (operating hours) Brauchbarkeitsdauer (Betriebszeit)
B41231
Standard 85 °C
Page 19 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Symbol English German
V Voltage Spannung
VFForming voltage Formierspannung
Vop Operating voltage Betriebsspannung
VRRated voltage, DC voltage Nennspannung, Gleichspannung
VSSurge voltage Spitzenspannung
XCCapacitive reactance Kapazitiver Blindwiderstand
XLInductive reactance Induktiver Blindwiderstand
Z Impedance Scheinwiderstand
ZTImpedance at temperature T Scheinwiderstand bei Temperatur T
tan δDissipation factor Verlustfaktor
λFailure rate Ausfallrate
ε0Absolute permittivity Elektrische Feldkonstante
εrRelative permittivity Dielektrizitätszahl
ωAngular velocity; 2 πf Kreisfrequenz; 2 πf
Note
All dimensions are given in mm.
B41231
Standard 85 °C
Page 20 of 21Please read Cautions and warnings and
Important notes at the end of this document.
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 re-
quirements 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 incum-
bent on the customer to check and decide whether an EPCOS product with the properties de-
scribed 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 lifesaving 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 Ma-
terial 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
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 the case of individual agreements deviating from the fore-
going for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current ver-
sion of the "General Terms of Delivery for Products and Services in the Electrical In-
dustry" published by the German Electrical and Electronics Industry Association
(ZVEI).
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CeraLink, CSMP, CSSP, CTVS,
DeltaCap, DigiSiMic, DSSP, FilterCap, FormFit, MiniBlue, MiniCell, MKD, MKK, MLSC,
MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL,
SilverCap, SIMDAD, SiMic, 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.
Important notes
Page 21 of 21
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
EPCOS:
B41231C7129M000 B41231C5129M000 B41231B5129M000 B41231A4129M000 B41231B6129M000
B41231B9158M000 B41231A9158M000 B41231C9158M000 B41231A5109M000 B41231A4339M000
B41231A6189M000 B41231B8278M000 B41231B4279M000 B41231A3229M000 B41231A9228M000
B41231B7189M000 B41231B0228M000 B41231A5189M000 B41231B4189M000 B41231A4189M000
B41231B4229M000 B41231C3229M000 B41231B9278M000 B41231B4339M000 B41231A3189M000
B41231C3279M000 B41231B9398M000 B41231A9398M000 B41231C0398M000 B41231C8398M000
B41231C3399M000 B41231B3399M000 B41231A3399M000 B41231B6478M000 B41231C0478M000
B41231A0478M000 B41231D8478M000 B41231D6478M000 B41231A4479M000 B41231A3479M000
B41231A7828M000 B41231B5828M000 B41231C7109M000 B41231B0338M000 B41231A0338M000
B41231A6828M000 B41231A8688M000 B41231D6688M000 B41231B0568M000 B41231D6568M000
B41231A6568M000 B41231A3689M000
EPCOS / TDK:
B41231A9128M000 B41231B9128M000 B41231D7129M000 B41231A7129M000 B41231A5129M000
B41231B4129M000 B41231A3129M000 B41231A6129M000 B41231A7159M000 B41231A0158M000
B41231C5159M000 B41231B5159M000 B41231A5159M000 B41231C4159M000 B41231B7159M000
B41231B4159M000 B41231A4159M000 B41231B3159M000 B41231A3159M000 B41231A4109M000
B41231B8109M000 B41231A8109M000 B41231B6109M000 B41231B5109M000 B41231C0278M000
B41231D3339M000 B41231C3339M000 B41231B3339M000 B41231A3339M000 B41231C9228M000
B41231B0278M000 B41231A0278M000 B41231A8278M000 B41231B5279M000 B41231A5279M000
B41231C4279M000 B41231A6338M000 B41231A8188M000 B41231C9278M000 B41231C9188M000
B41231B9188M000 B41231B9228M000 B41231A9188M000 B41231B0188M000 B41231A0188M000
B41231B6338M000 B41231B5189M000 B41231C0228M000 B41231A0228M000 B41231C4189M000
B41231B8228M000 B41231A8228M000 B41231A5229M000 B41231C4229M000 B41231A4229M000
B41231B3229M000 B41231A9278M000 B41231B5339M000 B41231B3189M000 B41231A4279M000
B41231B3279M000 B41231A3279M000 B41231C9338M000 B41231B8338M000 B41231A8338M000
B41231B0398M000 B41231A0398M000 B41231B8398M000 B41231A8398M000 B41231A5399M000
B41231B4399M000 B41231A4399M000 B41231A6478M000 B41231B7478M000 B41231A7478M000
B41231B0478M000 B41231C8478M000 B41231B8478M000 B41231A8478M000 B41231C6478M000
B41231B4479M000 B41231C3479M000 B41231A7568M000 B41231B7568M000 B41231A5568M000
B41231C7688M000 B41231B7688M000 B41231A7688M000 B41231C7828M000 B41231B5688M000
B41231B7828M000 B41231A5828M000 B41231A7109M000 B41231B7109M000 B41231A0128M000
B41231A9338M000 B41231C0338M000 B41231C8338M000 B41231A0828M000 B41231B8828M000
