Aluminum electrolytic capacitors
Axial-lead and soldering star capacitors
Series/Type: B41690, B41790
Date: February 2011
© EPCOS AG 2011. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Applications
Ultra compact design for automotive applications up to 140 °C
Features
Up to 150 °C operating temperature at reduced voltage
applied
Long useful life, 2000 h at up to 140 °C
Very high ripple current capability
Ultra compact design
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.
Axial-lead and soldering star capacitors B41690, B41790
Ultra compact up to 140 °C
Page 2 of 17Please 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%.
Specifications and characteristics in brief
Rated voltage VR25 ... 63 V DC
Surge voltage VS1.3 VR(for VR≤40 V DC)
1.15 VR(for VR= 63 V DC)
Rated capacitance CR300 ... 10000 µF
Capacitance tolerance 10/+30% Q
Leakage current Ileak
(5 min, 20 °C)
Self-inductance ESL1) Diameter d (mm) 12 14 16 18 20/21
Terminals Length l (mm) Approx. ESL (nH)
axial 25 22 26
29 38
30 21 24 29 34
39 33 38 45
49 50
soldering star 25 67
30 6 7 8 10
39 9 11 13
49 14
Useful life Requirements:
140 °C; VR; 0.6 IAC,R > 2000 h ∆C/C ≤ ±30% of initial value
125 °C; VR; IAC, R > 5000 h ESR ≤3 times initial specified limit
85 °C; VR; IAC, max > 15000 h Ileak ≤initial specified limit
40 °C; VR;2IAC, R > 500000 h
Voltage endurance test Post test requirements:
125 °C; VR2000 h ∆C/C ≤ ±10% of initial value
ESR ≤1.3% initial specified limit
Ileak ≤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 ×2 h.
Capacitor mounted by its wire leads at a distance of (6 ±1) mm from
the case and additionally clamped by the case.
IEC climatic category To IEC 60068-1:
55/125/56 (55 °C/+125 °C/56 days damp heat test)
Detail specification
Sectional specification
Similar to CECC 30301-802
IEC 60384-4
B41690, B41790
Ultra compact up to 140 °C
Page 3 of 17Please read Cautions and warnings and
Important notes at the end of this document.
B41690, Axial-lead capacitors
Dimensional drawing
Dimensions, weights and packing units
d×l dmax ×Imax Approx. weight Packing units (pcs.)
mm mm g Pallet Reel
12 ×30 12.5 ×30.5 5.1 288 450
14 ×25 14.5 ×25.5 5.7 200 350
14 ×30 14.5 ×30.5 6.8 200 350
16 ×25 16.5 ×25.5 7.4 180 250
16 ×30 16.5 ×30.5 8.9 180 250
16 ×39 16.5 ×40 11.7 180
18 ×30 18.5 ×30.5 11.1 160
18 ×39 18.5 ×40 14.7 160
20 ×29 20.5 ×29.5 13.5 140
21 ×39 21.5 ×40 20.0 140
21 ×49 21.5 ×50 25.0 110
B41690, B41790
Ultra compact up to 140 °C
Page 4 of 17Please read Cautions and warnings and
Important notes at the end of this document.
B41790, Soldering star capacitors
Dimensional drawings
Mounting holes d = 12 mm ... 14 mm 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.
12 ×30 13.5 ×32 12.5 3.0 5.4 480
14 ×25 15.5 ×27 14.5 3.0 6.1 480
14 ×30 15.5 ×32 14.5 3.0 7.2 480
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 ×39 17.5 ×41.5 16.5 3.0 12.2 200
18 ×30 19.5 ×32 18.5 3.0 11.8 300
18 ×39 19.5 ×41.5 18.5 3.0 15.4 200
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
B41690, B41790
Ultra compact up to 140 °C
Page 5 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Overview of available types
VR(V DC) 25 35 40 63
Case dimensions d ×l (mm)
CR(µF)
300 12 ×30
470 14 ×30
600 12 ×30
680 16 ×30
1000 14 ×25 14 ×30 16 ×39
1200 12 ×30
1300 18 ×39
1400 16 ×25 16 ×30
1800 18 ×30
1900 16 ×30
2000 14 ×30 21 ×39
2300 20 ×29
2500 18 ×30 21 ×49
2700 18 ×39
2900 16 ×30
3000 20 ×29
3800 18 ×39
3900 18 ×30 21 ×39
4300 16 ×39
5000 20 ×29
5200 21 ×39 21 ×49
5800 18 ×39
7000 21 ×49
8000 21 ×39
10000 21 ×49
B41690, B41790
Ultra compact up to 140 °C
Page 6 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Case dimensions and ordering codes
VR
V DC
CR
100 Hz
20 °C
µF
Case
dimensions
d×l
mm
Ordering code
Axial pallet
Ordering code
Axial reel
Ordering code
Soldering star
25 1200 12 ×30 B41690A5128Q007 B41690A5128Q009 B41790A5128Q000
2000 14 ×30 B41690A5208Q007 B41690A5208Q009 B41790A5208Q000
2900 16 ×30 B41690A5298Q007 B41690A5298Q009 B41790A5298Q000
3900 18 ×30 B41690A5398Q007 B41790A5398Q000
4300 16 ×39 B41690A5438Q007 B41690A5438Q009 B41790A5438Q000
5000 20 ×29 B41690A5508Q007
5800 18 ×39 B41690A5588Q007 B41790A5588Q000
8000 21 ×39 B41690A5808Q007 B41790A5808Q000
10000 21 ×49 B41690A5109Q007 B41790A5109Q000
35 1000 14 ×25 B41690A7108Q007 B41690A7108Q009 B41790A7108Q000
1400 16 ×25 B41690A7148Q007 B41690A7148Q009 B41790A7148Q000
1900 16 ×30 B41690A7198Q007 B41690A7198Q009 B41790A7198Q000
2500 18 ×30 B41690A7258Q007 B41790A7258Q000
3000 20 ×29 B41690A7308Q007
3800 18 ×39 B41690A7388Q007 B41790A7388Q000
5200 21 ×39 B41690A7528Q007 B41790A7528Q000
7000 21 ×49 B41690A7708Q007 B41790A7708Q000
40 600 12 ×30 B41690A7607Q007 B41690A7607Q009 B41790A7607Q000
1000 14 ×30 B41690B7108Q007 B41690B7108Q009 B41790B7108Q000
1400 16 ×30 B41690B7148Q007 B41690B7148Q009 B41790B7148Q000
1800 18 ×30 B41690A7188Q007 B41790A7188Q000
2300 20 ×29 B41690A7238Q007
2700 18 ×39 B41690A7278Q007 B41790A7278Q000
3900 21 ×39 B41690A7398Q007 B41790A7398Q000
5200 21 ×49 B41690B7528Q007 B41790B7528Q000
63 300 12 ×30 B41690A8307Q007 B41690A8307Q009 B41790A8307Q000
470 14 ×30 B41690A8477Q007 B41690A8477Q009 B41790A8477Q000
680 16 ×30 B41690A8687Q007 B41690A8687Q009 B41790A8687Q000
1000 16 ×39 B41690A8108Q007 B41690A8108Q009 B41790A8108Q000
1300 18 ×39 B41690A8138Q007 B41790A8138Q000
2000 21 ×39 B41690A8208Q007 B41790A8208Q000
2500 21 ×49 B41690A8258Q007 B41790A8258Q000
B41690, B41790
Ultra compact up to 140 °C
Page 7 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Technical data
CR
100 Hz
20 °C
µF
ESRtyp
100 Hz
20 °C
mΩ
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,max
10 kHz
85 °C
A
IAC,max
10 kHz
105 °C
A
IAC,max
10 kHz
125 °C
A
IAC,R
10 kHz
125 °C
A
IAC,max
10 kHz
140 °C
A
VR= 25 V DC
1200 80 135 1000 70 68 5.7 4.9 3.6 2.5 1.6
2000 50 90 620 48 47 6.8 5.8 4.3 3.0 1.9
2900 35 60 460 32 31 9.7 8.4 6.2 4.3 2.8
3900 27 45 330 25 24 11.0 9.4 7.0 4.8 3.1
4300 23 40 310 21 21 13.4 11.6 8.6 5.9 3.5
5000 23 37 260 21 21 11.6 10.0 7.4 5.1 3.3
5800 18 30 230 17 17 15.0 12.9 9.5 6.6 4.3
8000 15 25 160 14 14 16.6 14.2 10.5 7.3 4.8
10000 12 20 130 11 11 20.7 17.7 13.2 9.1 5.9
VR= 35 V DC
1000 75 125 900 65 63 5.5 4.7 3.5 2.4 1.5
1400 60 100 620 52 50 5.9 5.0 3.7 2.6 1.7
1900 38 65 460 32 31 9.5 8.2 6.1 4.2 2.7
2500 32 50 360 25 24 11.0 9.4 7.0 4.8 3.1
3000 27 45 310 23 22 11.6 10.0 7.4 5.1 3.3
3800 21 35 210 17 17 14.8 12.7 9.4 6.5 4.2
5200 16 27 160 14 14 16.4 14.0 10.4 7.2 4.7
7000 13 21 120 11 11 20.7 17.7 13.2 9.1 5.9
VR= 40 V DC
600 100 165 1000 70 68 5.7 4.9 3.6 2.5 1.6
1000 65 105 620 48 47 6.8 5.8 4.3 3.0 1.9
1400 45 70 460 32 31 9.6 8.2 6.1 4.2 2.7
1800 35 58 330 26 25 10.9 9.4 6.9 4.8 3.1
2300 30 48 260 23 22 11.6 10.0 7.4 5.1 3.3
2700 25 40 210 17 17 14.8 12.7 9.4 6.5 4.2
3900 18 30 150 14 14 16.4 14.0 10.4 7.2 4.7
5200 14 23 120 11 11 20.7 17.7 13.2 9.1 5.9
VR= 63 V DC
300 160 260 2500 120 115 5.0 4.3 3.2 2.2 1.4
470 105 175 1600 83 80 6.1 5.3 3.9 2.7 1.7
680 80 130 1100 65 62 7.1 6.0 4.4 3.1 2.0
1000 50 80 750 38 36 11.6 10.0 7.4 5.1 3.3
1300 40 64 580 30 28 13.2 11.4 8.5 5.8 3.4
2000 27 44 370 23 22 15.4 13.2 9.8 6.8 4.4
2500 22 35 300 18 17 19.3 16.5 12.3 8.5 5.5
B41690, B41790
Ultra compact up to 140 °C
Page 8 of 17Please read Cautions and warnings and
Important notes at the end of this document.
1) Refer to chapter "General technical information, 5.3 Calculation of useful life" for an explanation on how to interpret the useful life
graphs.
Useful life
depending on ambient temperature TAunder ripple current operating conditions at VR1)
Useful life
depending on case temperature TCunder ripple current operating conditions at VR1)
B41690, B41790
Ultra compact up to 140 °C
Page 9 of 17Please read Cautions and warnings and
Important notes at the end of this document.
2) Refer to chapter "General technical information, 5.3 Calculation of useful life" for an explanation on how to interpret the useful life
graphs.
Useful life
depending on ambient temperature TAunder ripple current operating conditions at Vop2)
VR= 25 V: Vop ≤20 V; VR= 35 V: Vop ≤30 V;
VR= 40 V: Vop ≤35 V; VR= 63 V: Vop ≤55 V
Useful life
depending on case temperature TCunder ripple current operating conditions at Vop2)
VR= 25 V: Vop ≤20 V; VR= 35 V: Vop ≤30 V;
VR= 40 V: Vop ≤35 V; VR= 63 V: Vop ≤55 V
B41690, B41790
Ultra compact up to 140 °C
Page 10 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Frequency factor of permissible ripple
current IAC versus frequency f
Frequency characteristics of ESR
Typical behavior
Equivalent series resistance ESR
versus frequency f
Typical behavior for 1000 µF/40 V
Impedance Z
versus frequency f
Typical behavior for 1000 µF/40 V
B41690, B41790
Ultra compact up to 140 °C
Page 11 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Cautions and warnings
Personal safety
The electrolytes used by EPCOS have not only been optimized with a view to the intended
application, but also 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, part of the high-voltage electrolytes used by EPCOS are self-extinguishing. They
contain flame-retarding substances which will quickly extinguish any flame that may have been
ignited.
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 safe substitute materials are
currently known. However, the amount of dangerous materials used in our products has been
limited to an absolute minimum. Nevertheless, the following rules should be observed when
handling aluminum electrolytic capacitors:
Any escaping electrolyte should not come into contact with eyes or skin.
If electrolyte does come into contact with the skin, wash the affected parts 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 breathing in 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.
B41690, B41790
Ultra compact up to 140 °C
Page 12 of 17Please 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"
Upper category
temperature
Do not exceed the upper category temperature. 7.2
"Maximum permissible
operating temperature"
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"
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"
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"
Robustness of
terminals
The following maximum tightening torques must
not be exceeded when connecting screw
terminals:
M5: 2 Nm
M6: 2.5 Nm
11.3
"Mounting torques"
Soldering Do not exceed the specified time or temperature
limits during soldering.
11.5
"Soldering"
B41690, B41790
Ultra compact up to 140 °C
Page 13 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Topic Safety information Reference
chapter "General
technical information"
Soldering,
cleaning agents
Do not allow halogenated hydrocarbons to come
into contact with aluminum electrolytic capacitors.
11.6
"Cleaning agents"
Passive
flammability
Avoid external energy, such as fire or electricity. 8.1
"Passive flammability"
Active
flammability
Avoid overload of the capacitors. 8.2
"Active flammability"
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"
B41690, B41790
Ultra compact up to 140 °C
Page 14 of 17Please 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)
B41690, B41790
Ultra compact up to 140 °C
Page 15 of 17Please 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.
B41690, B41790
Ultra compact up to 140 °C
Page 16 of 17Please 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, CSMP, CSSP, CTVS, DeltaCap,
DigiSiMic, DSSP, FormFit, MiniBlue, MiniCell, MKK, MKD, MLSC, MotorCap, PCC,
PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI, SIKOREL, SilverCap,
SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trade-
marks 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 17 of 17
