B43508 Series Datasheet


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Aluminum electrolytic capacitors
Large-size capacitors
Series/Type: B43508
Date: December 2016
© EPCOS AG 2016. 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.
Long-life grade capacitors
On-board chargers
Extremely high CV product, compact
High reliability
High ripple current capability
Capacitors pass the needle flame test according to
IEC 60695-11-5 for all flame exposure times up to 120 s
Charge/discharge-proof, polar
Aluminum case, fully insulated with PET
Up to 40 gvibration stability version available upon request
Snap-in solder pins to hold component in place on PC-board
Minus pole marking on case surface
Minus pole not insulated from case
Overload protection by safety vent on the base
3 terminals to ensure correct insertion: length 4.5 mm
Version with wired terminals, weldable and solderable,
available upon request
Large-size capacitors B43508
Compact 105 °C
Page2of14Please 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 VR450VDC
Surge voltage VS1.10 VR
Rated capacitance CR120 ... 680 μF
Capacitance tolerance ±20% M
Dissipation factor tan δtan δ≤0.20
(20 °C, 120 Hz)
Leakage current Ileak
(5 min, 20 °C)
Self-inductance ESL Approx. 20 nH
Useful life1) Requirements:
105 °C; VR;I
AC,R > 3000 h ΔC/C20% of initial value
85 °C; VR;I
AC, max > 6500 h tan δ≤2 times initial specified limit
40 °C; VR; 1.9 IAC,R > 200000 h Ileak initial specified limit
Voltage endurance test Post test requirements:
105 °C; VR2000 h ΔC/C10% of initial value
tan δ≤1.3 times initial specified limit
Ileak initial specified limit
Vibration resistance
To AEC-Q200 MIL-STD-202, methode 204:
Frequency range 10 Hz ... 2 kHz, displacement amplitude
max. 0.75 mm, acceleration max. 5 g, duration 3 ×4 h. Capacitor
mounted by its body which is rigidly clamped to the work surface.
Characteristics at low
Max. impedance
ratio at 100 Hz Z-25 °C/Z20 °C7
Z-40 °C/Z20 °C13
IEC climatic category To IEC 60068-1:
25/105/56 (25 °C/+105 °C/56 days damp heat test)
The capacitors can be operated in the temperature range of
40 °C to +105 °C but the impedance at 40 °C must be taken into
Detail specification
Sectional specification
Similar to CECC 30301-809
IEC 60384-4, AEC-Q200
Compact 105 °C
Page3of14Please read Cautions and warnings and
Important notes at the end of this document.
Dimensional drawing
Large-size capacitor, snap-in version with PET insulation
Dimensions (mm) Approx.
units (pcs.)
d+1 l±2
25 30 17 130
25 35 19 130
25 40 22 130
25 50 29 130
25 55 32 130
30 30 23 80
30 35 29 80
30 40 36 80
30 45 41 80
30 55 53 80
35 35 36 60
35 40 41 60
35 45 56 60
35 55 81 60
Large-size capacitors, snap-in versions are
available with 3 terminals (length (4.5 1) mm).
PET insulation is marked with "PET" on the
sleeve. Safety vent on the base.
Compact 105 °C
Page4of14Please read Cautions and warnings and
Important notes at the end of this document.
Packing example of large-size capacitors, snap-in version
For ecological reasons the packing is pure cardboard.
Ordering codes for terminal styles and insulation features
Identification in 3rd block of ordering code
Large-size capacitors
Terminal version PET insulation
3 terminals 4.5 mm M062
Ordering example:
B43508B5127M062 } Large-size capacitor, snap-in version with 3 terminals and PET insulation
Compact 105 °C
Page5of14Please read Cautions and warnings and
Important notes at the end of this document.
1) 120-Hz conversion factor of ripple current: IAC (120 Hz) = 1.03 IAC (100 Hz)
Technical data and ordering codes
100 Hz
20 °C
100 Hz
20 °C
10 kHz
20 °C
100 Hz
60 °C
100 Hz
85 °C
100 Hz
105 °C
Ordering code
(composition see
120 25 ×30 1020 1440 2.08 1.55 0.77 B43508B5127M062
150 25 ×30 820 1150 2.33 1.74 0.86 B43508B5157M062
180 25 ×35 680 960 2.64 1.97 0.97 B43508B5187M062
180 30 ×30 680 960 2.73 2.04 1.01 B43508C5187M062
220 25 ×40 560 790 3.01 2.25 1.11 B43508B5227M062
220 30 ×30 560 790 3.02 2.26 1.11 B43508C5227M062
270 25 ×50 460 640 3.51 2.63 1.30 B43508A5277M062
270 30 ×35 460 640 3.47 2.59 1.28 B43508B5277M062
330 25 ×55 370 530 3.97 2.97 1.47 B43508A5337M062
330 30 ×40 370 530 4.21 3.15 1.56 B43508B5337M062
330 35 ×35 370 530 4.06 3.04 1.50 B43508C5337M062
390 30 ×45 320 450 4.71 3.52 1.74 B43508A5397M062
390 35 ×35 320 450 4.42 3.30 1.63 B43508B5397M062
470 30 ×55 260 370 5.42 4.05 2.00 B43508A5477M062
470 35 ×40 260 370 5.00 3.74 1.85 B43508B5477M062
560 35 ×45 220 310 5.62 4.20 2.08 B43508A5567M062
680 35 ×55 180 260 6.50 4.86 2.40 B43508A5687M062
Compact 105 °C
Page6of14Please 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)
The useful life graph is available upon request.
Frequency factor of permissible ripple
current IAC versus frequency f
Frequency characteristics of ESR
Typical behavior
Impedance Z versus frequency f
Typical behavior at 20 °C
Compact 105 °C
Page7of14Please 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
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, 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 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.
Compact 105 °C
Page8of14Please 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.
"Basic construction of
aluminum electrolytic
Reverse voltage Voltages of opposite polarity should be prevented
by connecting a diode.
"Reverse voltage"
position of screw-
terminal capacitors
Screw terminal capacitors must not be mounted
with terminals facing down unless otherwise
"Mounting positions of
capacitors with screw
Robustness of
The following maximum tightening torques must
not be exceeded when connecting screw
M5: 2.5 Nm
M6: 4.0 Nm
"Mounting torques"
Mounting of
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
Do not pick up the PC board by the soldered
Do not insert the capacitor on the PC board with a
hole space different to the lead space specified.
considerations for
single-ended capacitors"
Soldering Do not exceed the specified time or temperature
limits during soldering.
cleaning agents
Do not allow halogenated hydrocarbons to come
into contact with aluminum electrolytic capacitors.
"Cleaning agents"
Upper category
Do not exceed the upper category temperature. 7.2
"Maximum permissible
operating temperature"
Avoid external energy, e.g. fire. 8.1
"Passive flammability"
Compact 105 °C
Page9of14Please read Cautions and warnings and
Important notes at the end of this document.
Topic Safety information Reference
chapter "General
technical information"
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
Do not apply excessive mechanical stress to the
capacitor terminals when mounting.
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%.
"Shelf life and storage
chapter "Capacitors with
screw terminals"
Breakdown strength
of insulating
Do not damage the insulating sleeve, especially
when ring clips are used for mounting.
"Screw terminals
Display of ordering codes for EPCOS products
The ordering code for one and the same product can be represented differently in data sheets,
data books, other publications and the website of EPCOS, 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
Compact 105 °C
Page 10 of 14Please 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
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)
Compact 105 °C
Page 11 of 14Please 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
All dimensions are given in mm.
Compact 105 °C
Page 12 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Page 13 of 14
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical
requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application. As a
rule 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 life-saving systems), it must therefore be ensured by means of suitable design of the
customer application or other action taken by the customer (e.g. installation of protective circuitry
or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or
failure of an electronic component.
3. The warnings, cautions and product-specific notes must be observed.
4. In order to satisfy certain technical requirements, some of the products described in this
publication may contain substances subject to restrictions in certain jurisdictions (e.g.
because they are classed as hazardous). Useful information on this will be found in our Material
Data Sheets on the Internet ( 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
foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to our General Terms
and Conditions of Supply.
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.
Page 14 of 14
Important notes
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
Release 2018-10