Aluminum electrolytic capacitors
Axial-lead and soldering star capacitors
Series/Type: B41689, B41789
Date: December 2019
© TDK Electronics AG 2019. Reproduction, publication and dissemination of this publication, enclosures hereto
and the information contained therein without TDK Electronics' prior express consent is prohibited.
Applications
Automotive electronics
Features
High vibration stability, special design with high vibration
stability up to 60 gavailable upon request
Very high ripple current capability
Long useful life, 10000 h at up to 125 °C
Low ESR also at rated voltage 63 V DC
SIKOREL design storage for up to 15 years at a
temperature of up to 35 °C
RoHS-compatible
Construction
Charge/discharge-proof, polar
Aluminum case with PET insulating sleeve
Negative pole connected to case
Version without insulating sleeve available upon request
Terminals
Axial leads, welded to capacitor case and cover disc
Soldering star option for upright mounting on PCB or welding
to busbar
Alternative axial-lead design with double-sided plates for
horizontal mounting available upon request
Taping and packing
Axial-lead capacitors will be delivered in pallet package
Capacitors with d ×l≤16 ×39 mm are also available taped
on reel
Soldering star capacitors are packed in blister trays
Axial-lead and soldering star capacitors B41689, B41789
Very high ripple current up to 150 °C
Page2of21Please read Cautions and warnings and
Important notes at the end of this document.
1) If optimum circuit design is used, the values are lower by 30%.
2) Refer to chapter "General technical information, 5 Useful life" on how to interpret useful life.
3) Continuous operation above 130 °C is limited to a maximum of 100 h per load duration, and it must be followed by a no-load cycle or
operation under 130 °C for at least the same duration.
4) ESRmax at 100 Hz, 20 °C
5) Refer to chapter "General technical information, 2.3 AEC-Q200 standard" for further details.
Specifications and characteristics in brief
Rated voltage VR25 ... 63 V DC
Surge voltage VS1.15 VR
Rated capacitance CR360 ... 4500 μF
Capacitance tolerance 10/+30% Q
Leakage current Ileak
(5 min, 20 °C)
Self-inductance ESL1) Diameter d (mm) 16 18 20 21
Terminals Length l (mm) Approx. ESL (nH)
axial 25 26 30
29 38
30 29 34 39
35 31 36 41
39 33 38 45
49 50
soldering star 25 7 8
30 8 10 11
35 9 10.5 12
39 9 11 13
49 14
Useful life2) Requirements:
150 °C; VR; 0.5 IAC,R > 2000 h3) ΔC/C≤30% of initial value
125 °C; VR;I
AC,max > 4000 h Ileak ≤initial specified limit
125 °C; VR;I
AC,R > 10000 h ESR ≤3 times initial specified limit4)
Voltage endurance test Post test requirements:
125 °C; VR4000 h for VR≤40VDC
3000 h for VR=63VDC
ΔC/C
ESR
Ileak
≤10% of initial value
≤1.3 times initial specified limit4)
≤initial specified limit
Vibration resistance test To IEC 60068-2-6, test Fc:
Frequency range 10 Hz ... 2 kHz, displacement amplitude max. 1.5 mm,
acceleration max. 20 g, duration 3 ×2h.
Capacitor rigidly clamped by the aluminum case e.g. using our standard
fixture.
IEC climatic category To IEC 60068-1: 55/125/56 (55 °C/+125 °C/56 days damp heat test)
Sectional specification IEC 60384-4
Reference standard AEC-Q2005)
B41689, B41789
Very high ripple current up to 150 °C
Page3of21Please read Cautions and warnings and
Important notes at the end of this document.
B41689, Axial-lead capacitors
Dimensional drawing
Dimensions, weights and packing units
d×l dmax ×Imax Approx. weight Packing units (pcs.)
mm mm g Pallet Reel
16 ×25 16.5 ×25.5 7.4 180 250
16 ×30 16.5 ×30.5 8.9 180 250
16 ×35 16.5 ×35.5 10.4 180 250
16 ×39 16.5 ×40 11.7 180 250
18 ×25 18.5 ×25.5 9.3 160
18 ×30 18.5 ×30.5 11.1 160
18 ×35 18.5 ×35.5 12.8 160
18 ×39 18.5 ×40 14.7 160
20 ×29 20.5 ×29.5 13.5 140
21 ×30 21.5 ×30.5 16.5 140
21 ×35 21.5 ×35.5 17.0 140
21 ×39 21.5 ×40 20.0 140
21 ×49 21.5 ×50 25.0 110
B41689, B41789
Very high ripple current up to 150 °C
Page4of21Please read Cautions and warnings and
Important notes at the end of this document.
B41789, Soldering star capacitors
Dimensional drawings
Mounting holes d = 16 mm ... 21 mm
Dimensions, weights and packing units
d×l dmax ×Imax c±0.1 e ±0.1 Approx. weight Packing units
mm mm mm mm g pcs.
16 ×25 17.5 ×27 16.5 3.0 7.9 300
16 ×30 17.5 ×32 16.5 3.0 9.4 300
16 ×35 17.5 ×37 16.5 3.0 10.9 200
16 ×39 17.5 ×41.5 16.5 3.0 12.2 200
18 ×25 19.5 ×27 18.5 3.0 9.9 300
18 ×30 19.5 ×32 18.5 3.0 11.8 300
18 ×35 19.5 ×37 18.5 3.0 13.2 200
18 ×39 19.5 ×41.5 18.5 3.0 15.4 200
21 ×30 22.5 ×32 21.5 3.5 17.5 468
21 ×35 22.5 ×37 21.5 3.5 18.3 324
21 ×39 22.5 ×41.5 21.5 3.5 21.0 324
21 ×49 22.5 ×51.5 21.5 3.5 26.0 264
B41689, B41789
Very high ripple current up to 150 °C
Page5of21Please read Cautions and warnings and
Important notes at the end of this document.
Overview of available types
VR(V DC) 25 40 63
Case dimensions d ×l (mm)
CR(μF)
360 16 ×25
470 18 ×25
510 16 ×30
560 16 ×25
620 16 ×35
18 ×30
680 18 ×25
720 16 ×30
750 16 ×39
820 16 ×35 18 ×35
900 18 ×30
910 18 ×39
21 ×30
1000 16 ×25 16 ×39
1100 21 ×35
1200 18 ×25 20 ×29
1300 16 ×30 21 ×39
1400 18 ×39
1500 16 ×35
1700 18 ×30
1800 16 ×39 21 ×49
1900 20 ×29
2000 21 ×39
2200 18 ×39
2700 21 ×49
3300 21 ×39
4500 21 ×49
B41689, B41789
Very high ripple current up to 150 °C
Page6of21Please read Cautions and warnings and
Important notes at the end of this document.
Case dimensions and ordering codes
CR
120 Hz
20 °C
μF
Case
dimensions
d×l
mm
Ordering code
Axial pallet
Ordering code
Axial reel
Ordering code
Soldering star
∇Increased ripple current due to optimized thermal design
VR=25VDC
1000 16 ×25 B41689A5108Q001 B41689A5108Q003 B41789A5108Q001
1000 ∇16 ×25 B41689K5108Q001 B41689K5108Q003 B41789K5108Q001
1200 18 ×25 B41689A5128Q001 B41789A5128Q001
1200 ∇18 ×25 B41689K5128Q001 B41789K5128Q001
1300 16 ×30 B41689A5138Q001 B41689A5138Q003 B41789A5138Q001
1300 ∇16 ×30 B41689K5138Q001 B41689K5138Q003 B41789K5138Q001
1500 16 ×35 B41689A5158Q001 B41689A5158Q003 B41789A5158Q001
1500 ∇16 ×35 B41689K5158Q001 B41689K5158Q003 B41789K5158Q001
1700 18 ×30 B41689A5178Q001 B41789A5178Q001
1700 ∇18 ×30 B41689K5178Q001 B41789K5178Q001
1800 16 ×39 B41689A5188Q001 B41689A5188Q003 B41789A5188Q001
1800 ∇16 ×39 B41689K5188Q001 B41689K5188Q003 B41789K5188Q001
1900 20 ×29 B41689A5198Q001
1900 ∇20 ×29 B41689K5198Q001
2200 18 ×39 B41689A5228Q001 B41789A5228Q001
2200 ∇18 ×39 B41689K5228Q001 B41789K5228Q001
3300 21 ×39 B41689A5338Q001 B41789A5338Q001
3300 ∇21 ×39 B41689K5338Q001 B41789K5338Q001
4500 21 ×49 B41689A5458Q001 B41789A5458Q001
4500 ∇21 ×49 B41689K5458Q001 B41789K5458Q001
B41689, B41789
Very high ripple current up to 150 °C
Page7of21Please read Cautions and warnings and
Important notes at the end of this document.
Case dimensions and ordering codes
CR
120 Hz
20 °C
μF
Case
dimensions
d×l
mm
Ordering code
Axial pallet
Ordering code
Axial reel
Ordering code
Soldering star
∇Increased ripple current due to optimized thermal design
VR=40VDC
560 16 ×25 B41689A7567Q001 B41689A7567Q003 B41789A7567Q001
560 ∇16 ×25 B41689K7567Q001 B41689K7567Q003 B41789K7567Q001
680 18 ×25 B41689A7687Q001 B41789A7687Q001
680 ∇18 ×25 B41689K7687Q001 B41789K7687Q001
720 16 ×30 B41689A7727Q001 B41689A7727Q003 B41789A7727Q001
720 ∇16 ×30 B41689K7727Q001 B41689K7727Q003 B41789K7727Q001
820 16 ×35 B41689A7827Q001 B41689A7827Q003 B41789A7827Q001
820 ∇16 ×35 B41689K7827Q001 B41689K7827Q003 B41789K7827Q001
900 18 ×30 B41689A7907Q001 B41789A7907Q001
900 ∇18 ×30 B41689K7907Q001 B41789K7907Q001
1000 16 ×39 B41689A7108Q001 B41689A7108Q003 B41789A7108Q001
1000 ∇16 ×39 B41689K7108Q001 B41689K7108Q003 B41789K7108Q001
1200 20 ×29 B41689A7128Q001
1200 ∇20 ×29 B41689K7128Q001
1400 18 ×39 B41689A7148Q001 B41789A7148Q001
1400 ∇18 ×39 B41689K7148Q001 B41789K7148Q001
2000 21 ×39 B41689A7208Q001 B41789A7208Q001
2000 ∇21 ×39 B41689K7208Q001 B41789K7208Q001
2700 21 ×49 B41689A7278Q001 B41789A7278Q001
2700 ∇21 ×49 B41689K7278Q001 B41789K7278Q001
B41689, B41789
Very high ripple current up to 150 °C
Page8of21Please read Cautions and warnings and
Important notes at the end of this document.
Case dimensions and ordering codes
CR
120 Hz
20 °C
μF
Case
dimensions
d×l
mm
Ordering code
Axial pallet
Ordering code
Axial reel
Ordering code
Soldering star
∇Increased ripple current due to optimized thermal design
VR=63VDC
360 16 ×25 B41689B8367Q001 B41689B8367Q003 B41789B8367Q001
360 ∇16 ×25 B41689L8367Q001 B41689L8367Q003 B41789L8367Q001
470 18 ×25 B41689B8477Q001 B41789B8477Q001
470 ∇18 ×25 B41689L8477Q001 B41789L8477Q001
510 16 ×30 B41689B8517Q001 B41689B8517Q003 B41789B8517Q001
510 ∇16 ×30 B41689L8517Q001 B41689L8517Q003 B41789L8517Q001
620 16 ×35 B41689B8627Q001 B41689B8627Q003 B41789B8627Q001
620 18 ×30 B41689C8627Q001 B41789C8627Q001
620 ∇16 ×35 B41689L8627Q001 B41689L8627Q003 B41789L8627Q001
620 ∇18 ×30 B41689M8627Q001 B41789M8627Q001
750 16 ×39 B41689B8757Q001 B41689B8757Q003 B41789B8757Q001
750 ∇16 ×39 B41689L8757Q001 B41689L8757Q003 B41789L8757Q001
820 18 ×35 B41689B8827Q001 B41789B8827Q001
820 ∇18 ×35 B41689L8827Q001 B41789L8827Q001
910 18 ×39 B41689B8917Q001 B41789B8917Q001
910 21 ×30 B41689C8917Q001 B41789C8917Q001
910 ∇18 ×39 B41689L8917Q001 B41789L8917Q001
910 ∇21 ×30 B41689M8917Q001 B41789M8917Q001
1100 21 ×35 B41689B8118Q001 B41789B8118Q001
1100 ∇21 ×35 B41689L8118Q001 B41789L8118Q001
1300 21 ×39 B41689B8138Q001 B41789B8138Q001
1300 ∇21 ×39 B41689L8138Q001 B41789L8138Q001
1800 21 ×49 B41689B8188Q001 B41789B8188Q001
1800 ∇21 ×49 B41689L8188Q001 B41789L8188Q001
B41689, B41789
Very high ripple current up to 150 °C
Page9of21Please read Cautions and warnings and
Important notes at the end of this document.
1) Maximum ripple current at 125 °C capacitor case temperature TC(measured at aluminum case surface), when mounted to a heat
sink. Further details available upon request.
Technical data
CR
120 Hz
20 °C
μF
Case
dimensions
d×l
mm
ESRmax
100 Hz
20 °C
mΩ
ESRmax
100 Hz
40 °C
mΩ
ESRmax
10 kHz
20 °C
mΩ
Zmax
100 kHz
20 °C
mΩ
IAC,max1)
10 kHz
TC125 °C
A
IAC,max
10 kHz
125 °C
A
IAC,R
10 kHz
125 °C
A
IAC,max
10 kHz
150 °C
A
∇Increased ripple current due to optimized thermal design
VR=25VDC
1000 16 ×25 98 565 53 50 9.2 5.7 3.5 1.7
1000 ∇16 ×25 98 565 53 50 10.1 6.0 3.6 1.8
1200 18 ×25 80 470 43 41 11.1 6.9 4.2 2.1
1200 ∇18 ×25 80 470 43 41 12.2 7.2 4.4 2.2
1300 16 ×30 75 435 41 39 11.4 7.1 4.3 2.2
1300 ∇16 ×30 75 435 41 39 12.5 7.4 4.5 2.2
1500 16 ×35 65 377 35 34 13.3 8.3 5.0 2.5
1500 ∇16 ×35 65 377 35 34 14.6 8.6 5.2 2.6
1700 18 ×30 57 332 31 29 14.1 8.8 5.3 2.7
1700 ∇18 ×30 57 332 31 29 15.5 9.1 5.5 2.8
1800 16 ×39 55 314 30 28 15.1 9.4 5.7 2.9
1800 ∇16 ×39 55 314 30 28 16.6 9.8 5.9 3.0
1900 20 ×29 52 297 28 27 14.5 9.1 5.5 2.7
1900 ∇20 ×29 52 297 28 27 16.0 9.5 5.7 2.9
2200 18 ×39 44 257 24 23 18.3 11.4 6.9 3.4
2200 ∇18 ×39 44 257 24 23 20.1 11.8 7.2 3.6
3300 21 ×39 31 172 17 16 21.0 13.1 7.9 4.0
3300 ∇21 ×39 31 172 17 16 23.2 13.6 8.3 4.1
4500 21 ×49 23 126 13 12 26.5 16.5 10.0 5.0
4500 ∇21 ×49 23 126 13 12 29.2 17.2 10.4 5.2
B41689, B41789
Very high ripple current up to 150 °C
Page 10 of 21Please read Cautions and warnings and
Important notes at the end of this document.
2) Maximum ripple current at 125 °C capacitor case temperature TC(measured at aluminum case surface), when mounted to a heat
sink. Further details available upon request.
Technical data
CR
120 Hz
20 °C
μF
Case
dimensions
d×l
mm
ESRmax
100 Hz
20 °C
mΩ
ESRmax
100 Hz
40 °C
mΩ
ESRmax
10 kHz
20 °C
mΩ
Zmax
100 kHz
20 °C
mΩ
IAC,max2)
10 kHz
TC125 °C
A
IAC,max
10 kHz
125 °C
A
IAC,R
10 kHz
125 °C
A
IAC,max
10 kHz
150 °C
A
∇Increased ripple current due to optimized thermal design
VR=40VDC
560 16 ×25 129 587 53 50 9.2 5.7 3.5 1.7
560 ∇16 ×25 129 587 53 50 10.1 6.0 3.6 1.8
680 18 ×25 105 483 43 41 11.1 6.9 4.2 2.1
680 ∇18 ×25 105 483 43 41 12.3 7.2 4.4 2.2
720 16 ×30 100 457 42 39 11.4 7.1 4.3 2.1
720 ∇16 ×30 100 457 42 39 12.5 7.4 4.5 2.2
820 16 ×35 88 401 36 34 13.2 8.2 5.0 2.5
820 ∇16 ×35 88 401 36 34 14.5 8.6 5.2 2.6
900 18 ×30 80 365 33 31 13.9 8.6 5.2 2.6
900 ∇18 ×30 80 365 33 31 15.2 9.0 5.4 2.7
1000 16 ×39 73 329 30 29 15.1 9.4 5.7 2.8
1000 ∇16 ×39 73 329 30 29 16.6 9.8 5.9 3.0
1200 20 ×29 61 274 26 24 14.9 9.3 5.6 2.8
1200 ∇20 ×29 61 274 26 24 16.5 9.7 5.9 2.9
1400 18 ×39 52 235 22 20 18.9 11.8 7.1 3.6
1400 ∇18 ×39 52 235 22 20 20.8 12.2 7.4 3.7
2000 21 ×39 38 165 16 16 21.3 13.2 8.0 4.0
2000 ∇21 ×39 38 165 16 16 23.4 13.8 8.4 4.2
2700 21 ×49 28 123 12 12 26.8 16.7 10.1 5.0
2700 ∇21 ×49 28 123 12 12 29.5 17.4 10.5 5.3
B41689, B41789
Very high ripple current up to 150 °C
Page 11 of 21Please read Cautions and warnings and
Important notes at the end of this document.
3) Maximum ripple current at 125 °C capacitor case temperature TC(measured at aluminum case surface), when mounted to a heat
sink. Further details available upon request.
Technical data
CR
120 Hz
20 °C
μF
Case
dimensions
d×l
mm
ESRmax
100 Hz
20 °C
mΩ
ESRmax
100 Hz
40 °C
mΩ
ESRmax
10 kHz
20 °C
mΩ
Zmax
100 kHz
20 °C
mΩ
IAC,max3)
10 kHz
TC125 °C
A
IAC,max
10 kHz
125 °C
A
IAC,R
10 kHz
125 °C
A
IAC,max
10 kHz
150 °C
A
∇Increased ripple current due to optimized thermal design
VR=63VDC
360 16 ×25 173 652 58 55 8.9 5.1 3.2 1.6
360 ∇16 ×25 173 652 58 55 9.2 5.3 3.3 1.6
470 18 ×25 132 499 43 41 11.1 6.3 4.0 2.0
470 ∇18 ×25 132 499 43 41 11.4 6.6 4.1 2.1
510 16 ×30 124 461 42 40 11.2 6.4 4.0 2.0
510 ∇16 ×30 124 461 42 40 11.6 6.7 4.2 2.1
620 16 ×35 102 379 34 33 13.4 7.6 4.8 2.4
620 18 ×30 100 379 33 32 13.8 7.9 4.9 2.5
620 ∇16 ×35 102 379 34 33 13.8 7.9 5.0 2.5
620 ∇18 ×30 100 379 33 32 14.2 8.2 5.1 2.6
750 16 ×39 84 314 29 27 15.2 8.7 5.5 2.7
750 ∇16 ×39 84 314 29 27 15.8 9.0 5.6 2.8
820 18 ×35 76 287 26 24 16.6 9.5 6.0 3.0
820 ∇18 ×35 76 287 26 24 17.2 9.9 6.2 3.1
910 18 ×39 69 258 23 22 18.6 10.6 6.7 3.3
910 21 ×30 71 259 25 24 16.1 9.2 5.8 2.9
910 ∇18 ×39 69 258 23 22 19.2 11.0 6.9 3.4
910 ∇21 ×30 71 259 25 24 16.6 9.5 6.0 3.0
1100 21 ×35 58 215 21 20 19.0 10.8 6.8 3.4
1100 ∇21 ×35 58 215 21 20 19.7 11.2 7.0 3.5
1300 21 ×39 50 182 18 17 21.5 12.3 7.7 3.9
1300 ∇21 ×39 50 182 18 17 22.3 12.7 8.0 4.0
1800 21 ×49 36 132 13 13 27.3 15.6 9.8 4.9
1800 ∇21 ×49 36 132 13 13 28.2 16.0 10.0 5.0
B41689, B41789
Very high ripple current up to 150 °C
Page 12 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 at VR
Frequency factor of permissible ripple
current IAC versus frequency f
Frequency characteristics of ESR
Typical behavior
B41689, B41789
Very high ripple current up to 150 °C
Page 13 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Equivalent series resistance ESR
versus frequency f
Typical behavior for 820 μF/63 V
Impedance Z
versus frequency f
Typical behavior for 820 μF/63 V
B41689, B41789
Very high ripple current up to 150 °C
Page 14 of 21Please read Cautions and warnings and
Important notes at the end of this document.
Cautions and warnings
Personal safety
The electrolytes used 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 are self-extinguishing.
As far as possible, we do not use any dangerous chemicals or compounds to produce operating
electrolytes, although in exceptional cases, such materials must be used in order to achieve
specific physical and electrical properties because no alternative materials are currently known.
We do, however, restrict the amount of dangerous materials used in our products to an absolute
minimum.
Materials and chemicals used in our aluminum electrolytic capacitors are continuously adapted
in compliance with the TDK Electronics 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 our 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 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.
B41689, B41789
Very high ripple current up to 150 °C
Page 15 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 seperate file chapter "General technical infor-
mation".
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 of opposite polarity should be prevented
by connecting a diode.
3.1.6
"Reverse voltage"
Mounting
position of screw-
terminal capacitors
Screw terminal capacitors must not be mounted
with terminals facing down unless otherwise
specified.
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, e.g. fire. 8.1
"Passive flammability"
B41689, B41789
Very high ripple current up to 150 °C
Page 16 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
capacitors.
Do not apply excessive mechanical stress to the
capacitor terminals when mounting.
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
"Shelf life and 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"
Display of ordering codes for TDK Electronics products
The ordering code for one and the same product can be represented differently in data sheets,
data books, other publications, on the company website, or in order-related documents such as
shipping notes, order confirmations and product labels. The varying representations of the order-
ing codes are due to different processes employed and do not affect the specifications of the re-
spective products.
Detailed information can be found on the Internet under
www.tdk-electronics.tdk.com/orderingcodes.
B41689, B41789
Very high ripple current up to 150 °C
Page 17 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
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
ΔT Temperature difference Temperaturdifferenz
TAAmbient temperature Umgebungstemperatur
TCCase temperature Gehäusetemperatur
TBCapacitor base temperature Temperatur des Gehäusebodens
t Time Zeit
Δt Period Zeitraum
tbService life (operating hours) Brauchbarkeitsdauer (Betriebszeit)
B41689, B41789
Very high ripple current up to 150 °C
Page 18 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.
B41689, B41789
Very high ripple current up to 150 °C
Page 19 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, we are 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 a 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 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.tdk-electronics.tdk.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 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 our General
Terms and Conditions of Supply.
Important notes
Page 20 of 21
7. Our manufacturing sites serving the automotive business apply the IATF 16949
standard. The IATF certifications confirm our compliance with requirements regarding the
quality management system in the automotive industry. Referring to customer requirements
and customer specific requirements (“CSR”) TDK always has and will continue to have the
policy of respecting individual agreements. Even if IATF 16949 may appear to support the
acceptance of unilateral requirements, we hereby like to emphasize that only requirements
mutually agreed upon can and will be implemented in our Quality Management System.
For clarification purposes we like to point out that obligations from IATF 16949 shall only
become legally binding if individually agreed upon.
8. The trade names EPCOS, CeraCharge, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP,
CTVS, DeltaCap, DigiSiMic, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD,
MKK, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PowerHap, PQSine,
PQvar, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV,
ThermoFuse, WindCap are trademarks registered or pending in Europe and
in other countries. Further information will be found on the Internet at
www.tdk-electronics.tdk.com/trademarks.
Release 2018-10
Important notes
Page 21 of 21
