Aluminum electrolytic capacitors
Large-size capacitors
Series/Type: B41605
Date: December 2010
© EPCOS AG 2010. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Long-life grade capacitors
Applications
High-reliability equipment in automotive power electronics
Applications with highest ripple current load at high
frequencies
Features
High reliability and long useful life, up to 5000 h at 125 °C
Very high ripple current capability optimized for high
frequencies
Compact design
Vibration resistance up to 40 g
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.
RoHS-compatible
Construction
Charge/discharge-proof, polar
Aluminum case, fully insulated
Up to 40 gvibration stability version with wired terminals and
corrugation
Snap-in solder version with pins to hold component in place
on PC-board
Minus pole not insulated from case
Overload protection (safety vent)
Without insulation sleeve upon request
Terminals
Standard vibration version with wired terminals,
weldable and solderable
Snap-in with 3 terminals, protection against polarity reversal
Up to 40 gvibration stability version with wired terminals,
weldable and solderable
Large-size capacitors B41605
Long useful life, compact 125 °C
Page 2 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Specifications and characteristics in brief
Rated voltage VR25 ... 63 V DC
Surge voltage VS1.15 VR
Rated capacitance CR2000 ... 27000 µF
Capacitance tolerance ±20% M
Leakage current Ileak
(5 min, 20 °C)
Self-inductance ESL 10 nH
Useful life Requirements:
125 °C; VR; IAC,R > 5000 h ∆C/C ≤ ±30% of initial value
85 °C; VR; 2.3 IAC,R > 20000 h ESR ≤3 times initial specified limit
40 °C; VR; 2.0 IAC,R > 500000 h Ileak ≤initial specified limit
Voltage endurance
test
Post test requirements:
125 °C; VR2000 h ∆C/C ≤ ±10% of initial value
ESR ≤1.3 times initial specified limit
Ileak ≤initial specified limit
Vibration resistance test To IEC 60068-2-6, test Fc:
40 gvibration stability version Snap-in version with 3 terminals
and version with wired terminals
Frequency range 10 Hz ... 2 kHz,
displacement amplitude max. 3 mm,
acceleration max. 40 g,
duration 3 ×2 h.
Capacitor mounted by its body
which is rigidly clamped to the work
surface.
Frequency range 10 Hz ... 2 kHz,
displacement amplitude max.
0.75 mm, acceleration max. 10 g,
duration 3 ×2 h.
Capacitor mounted by its body
which is rigidly clamped to the
work surface.
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 30301-809
IEC 60384-4
B41605
Long useful life, compact 125 °C
Page 3 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Dimensional drawings
Large-size capacitor, up to 40 gvibration stability version with wired terminals
Dimensions and weights
Dimensions Wire length Approx.
weight
g
Packing
units
pcs.
d +1
mm
l±2
mm
v2
mm
w2
mm
22 40 25 23 21 56
25 40 25 23 28 56
25 50 25 23 35 56
30 50 15 13 50 36
35 50 15 13 68 30
Large-size capacitor, standard vibration version with wired terminals
Dimensions and weights
Dimensions Wire length Approx.
weight
g
Packing
units
pcs.
d +1
mm
l±2
mm
v2
mm
w2
mm
22 40 25 23 21 56
25 40 25 23 28 56
25 50 25 23 35 56
30 50 15 13 50 36
35 50 15 13 68 30
B41605
Long useful life, compact 125 °C
Page 4 of 17Please read Cautions and warnings and
Important notes at the end of this document.
Large size capacitor, snap-in version with 3 terminals
Dimensions, weights and packing units
Dimensions Approx.
weight
g
Packing
units
pcs.
d +1
mm
l±2
mm
22 40 21 160
25 40 28 130
25 50 35 130
30 50 50 80
35 50 68 60
Packing of snap-in capacitors
For ecological reasons the packing is
pure cardboard. Components can be
withdrawn (in full or in part) in the
correct position for insertion.
B41605
Long useful life, compact 125 °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 40 55 63
Case dimensions d ×l (mm)
CR(µF)
2000 22 ×40
2500 22 ×40
2700 25 ×40
3300 25 ×40
3900 22 ×40 25 ×50
4700 25 ×50
5100 25 ×40
5600 30 ×50
6800 22 ×40 25 ×50 30 ×50
8100 35 ×50
9000 25 ×40
10000 30 ×50 35 ×50
12000 25 ×50
15000 35 ×50
18000 30 ×50
27000 35 ×50
The capacitance and voltage ratings listed above are available in different cases upon request.
Other voltage and capacitance ratings are also available upon request.
B41605
Long useful life, compact 125 °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
Snap-in version with
3 terminals
Ordering code
Version with wired
terminals
Ordering code
Up to 40 gvibration
stability version with
wired terminals
25 6800 22 ×40 B41605B5688M002 B41605B5688M008 B41605B5688M009
9000 25 ×40 B41605A5908M002 B41605A5908M008 B41605A5908M009
12000 25 ×50 B41605A5129M002 B41605A5129M008 B41605A5129M009
18000 30 ×50 B41605A5189M002 B41605B5189M008 B41605B5189M009
27000 35 ×50 B41605A5279M002 B41605B5279M008 B41605B5279M009
40 3900 22 ×40 B41605A7398M002 B41605A7398M008 B41605A7398M009
5100 25 ×40 B41605A7518M002 B41605A7518M008 B41605A7518M009
6800 25 ×50 B41605A7688M002 B41605A7688M008 B41605A7688M009
10000 30 ×50 B41605A7109M002 B41605B7109M008 B41605B7109M009
15000 35 ×50 B41605A7159M002 B41605B7159M008 B41605B7159M009
55 2500 22 ×40 B41605A0258M002 B41605A0258M008 B41605A0258M009
3300 25 ×40 B41605A0338M002 B41605A0338M008 B41605A0338M009
4700 25 ×50 B41605A0478M002 B41605A0478M008 B41605A0478M009
6800 30 ×50 B41605A0688M002 B41605B0688M008 B41605B0688M009
10000 35 ×50 B41605A0109M002 B41605B0109M008 B41605B0109M009
63 2000 22 ×40 B41605A8208M002 B41605A8208M008 B41605A8208M009
2700 25 ×40 B41605B8278M002 B41605B8278M008 B41605B8278M009
3900 25 ×50 B41605A8398M002 B41605A8398M008 B41605A8398M009
5600 30 ×50 B41605B8568M002 B41605C8568M008 B41605C8568M009
8100 35 ×50 B41605A8818M002 B41605B8818M008 B41605B8818M009
B41605
Long useful life, compact 125 °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
105 °C
A
IAC,max
10 kHz
125 °C
A
IAC,R
10 kHz
125 °C
A
VR= 25 V DC
6800 17 22 115 19 19 12.8 9.5 6.5
9000 13 18 80 15 15 13.8 10.5 7.1
12000 10 13 55 12 12 17.5 13.2 9.0
18000 8 11 45 11 11 19.1 14.3 9.8
27000 7 10 32 11 11 19.4 14.6 10.0
VR= 40 V DC
3900 18 26 115 19 19 12.8 9.5 6.5
5100 15 21 80 15 15 13.8 10.5 7.1
6800 11 16 60 11 11 17.5 13.2 9.0
10000 9 13 45 11 11 19.2 14.4 9.9
15000 8 11 32 11 11 19.5 14.7 10.1
VR= 55 V DC
2500 21 31 115 19 19 12.7 9.5 6.4
3300 17 24 80 15 15 13.8 10.5 7.1
4700 13 18 60 12 12 17.5 13.2 9.0
6800 10 15 45 11 11 19.1 14.3 9.8
10000 9 13 35 11 11 19.4 14.6 10.0
VR= 63 V DC
2000 25 35 115 19 19 12.7 9.5 6.4
2700 19 26 85 15 15 13.6 10.4 7.0
3900 14 20 65 12 12 17.5 13.2 9.0
5600 11 16 45 11 11 19.1 14.3 9.8
8100 9 13 35 11 11 19.4 14.6 10.0
B41605
Long useful life, compact 125 °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)
B41605
Long useful life, compact 125 °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= 55 V: Vop ≤48 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= 55 V: Vop ≤48 V
VR= 40 V: Vop ≤35 V VR= 63 V: Vop ≤55 V
B41605
Long useful life, compact 125 °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 3300 µF/55 V
Impedance Z
versus frequency f
Typical behavior for 3300 µF/55 V
B41605
Long useful life, compact 125 °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.
B41605
Long useful life, compact 125 °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"
B41605
Long useful life, compact 125 °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"
B41605
Long useful life, compact 125 °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)
B41605
Long useful life, compact 125 °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.
B41605
Long useful life, compact 125 °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
