# Electrolytic Capacitor, 4700 µF, 55 V, ± 20%, Radial Leaded, 5000 hours @ 125°C, Polar
**URL**: https://novapart.co/products/B41605E0478M008/electrolytic-capacitor-4700-f-55-v-20-radial
**SKU**: B41605E0478M008
**Manufacturer**: TDK
**Category**: Passive Components || Capacitors || Aluminium Electrolytic Capacitors || Leaded Aluminium Electrolytic Capacitors
**Price**: €5.0800
**Stock**: 10+
**Lead Time**: 253 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Esr | 0.018ohm |
| Svhc | No SVHC (25-Jun-2025) |
| Polarity | Polar |
| Capacitance | 4700µF |
| Voltage(Dc) | 55V |
| Lead Spacing | 8.4mm |
| Product Range | B41605 Series |
| Product Width | - |
| Qualification | AEC-Q200 |
| Product Height | 50mm |
| Product Length | - |
| Ripple Current | 9A |
| Product Diameter | 25mm |
| Capacitor Terminals | Radial Leaded |
| Capacitance Tolerance | ± 20% |
| Lifetime @ Temperature | 5000 hours @ 125°C |
| Capacitor Case / Package | - |
| Operating Temperature Max | 125°C |
| Operating Temperature Min | -55°C |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4688349/)
**==> picture [156 x 48] intentionally omitted <==**
## **Aluminum electrolytic capacitors**
Large-size capacitors
**Series/Type: B41605** Date: September 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.
~~eee~~ **Large-size capacitors B41605 Compact 125** ° **C**
## **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
- High vibration stability up to 40 _g_ depending on capacitor size
- SIKOREL design – storage for up to 15 years at a temperature of up to 35 °C
- RoHS-compatible
Qualification based on the AEC-Q200 standard
## **Construction**
Charge/discharge-proof, polar
- Aluminum case, insulated with PET sleeve and with insulation sheet at the can bottom
- High vibration stability version with middle corrugation
- Minus pole marking on case surface
- Minus pole not insulated from case
- Overload protection by safety vent on the base
- Version without insulating sleeve available upon request
## **Terminals**
Version with wired terminals, weldable and solderable Snap-in with 3 terminals, protection against polarity reversal
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 2 of 18
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**B41605 Compact** � **125** ° **C**
## **Specifications and characteristics in brief**
|Rated voltage VR
Surge voltage VS|25 ... 63 V DC
1.15�VR|25 ... 63 V DC
1.15�VR|
|---|---|---|
|Rated capacitance CR
Capacitance tolerance|2000 ... 27000 μF
±20%�M||
|Leakage current Ileak
(5 min, 20°C)|||
|Self-inductance ESL|Approx. 10 nH||
|Useful life1)
125°C; VR; IAC,R
85°C; VR; 2.3�IAC,R
40°C; VR; 2.0�IAC,R|> 5000 h
> 20000 h
> 500000 h|Requirements:
�ΔC/C�
≤30% of initial value
ESR
≤3 times initial specified limit2)
Ileak
≤initial specified limit|
|Voltage endurance test
125°C; VR|2000 h|Post test requirements:
�ΔC/C�
≤10% of initial value
ESR
≤1.3 times initial specified limit2)
Ileak
≤initial specified limit|
|Vibration resistance
test (standard)|To IEC 60068-2-6, test Fc:
Frequency range 10 Hz ... 2 kHz, displacement amplitude max. 0.375 mm,
acceleration max. 5_g_, duration 3×4 h.
Capacitor rigidlyclamped bythe case, e.g. usingour standard fixture.||
|IEC climatic category|To IEC 60068-1:
55/125/56(�55°C/+ 125°C/56 days dampheat test)||
|Sectional specification|IEC 60384-4||
|Reference standard|AEC-Q2003)||
> 1) Refer to chapter "General technical information, 5 Useful life" on how to interpret useful life. 2) ESRmax at 100 Hz, 20 °C
> 3) Refer to chapter "General technical information, 2.3 AEC-Q200 standard" for further details.
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 3 of 18
**B41605 Compact** � **125** ° **C**
## **Dimensional drawings**
## **Large-size capacitor, high vibration stability version (with middle corrugation) with wired terminals**
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## **Dimensions, weights and packing units**
|Dimensions
d +1
mm
l±2
mm|Dimensions
d +1
mm
l±2
mm|Wire l
v�2
mm|ength
w�2
mm|Approx.
weight
g|Packing
units
pcs.|
|---|---|---|---|---|---|
|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 stability version with wired terminals**
**==> picture [203 x 254] intentionally omitted <==**
## **Dimensions, weights and packing units**
|Dimensions
d +1
mm
l±2
mm|Dimensions
d +1
mm
l±2
mm|Wire l
v�2
mm|ength
w�2
mm|Approx.
weight
g|Packing
units
pcs.|
|---|---|---|---|---|---|
|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|
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 4 of 18
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**B41605 Compact** � **125** ° **C**
## **Large-size capacitor, high vibration stability version (with middle corrugation) with snap-in terminals**
**==> picture [55 x 124] intentionally omitted <==**
**==> picture [124 x 79] intentionally omitted <==**
**==> picture [65 x 112] intentionally omitted <==**
## **Dimensions, weights and packing units**
|Dimensions
d +1
mm
l±2
mm|Dimensions
d +1
mm
l±2
mm|Approx.
weight
g|Packing
units
pcs.|
|---|---|---|---|
|22|40|21|160|
|25|40|28|130|
|25|50|35|130|
|30|50|50|80|
|35|50|68|60|
**==> picture [224 x 90] intentionally omitted <==**
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 5 of 18
**B41605 Compact** � **125** ° **C**
## **Large-size capacitor, standard vibration stability version with snap-in terminals**
**==> picture [55 x 124] intentionally omitted <==**
**==> picture [124 x 79] intentionally omitted <==**
**==> picture [64 x 112] intentionally omitted <==**
## **Dimensions, weights and packing units**
|Dimensions
d +1
mm
l±2
mm|Dimensions
d +1
mm
l±2
mm|Approx.
weight
g|Packing
units
pcs.|
|---|---|---|---|
|22|40|21|160|
|25|40|28|130|
|25|50|35|130|
|30|50|50|80|
|35|50|68|60|
**==> picture [224 x 90] intentionally omitted <==**
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 6 of 18
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**----- Start of picture text -----**
B41605
eee
Compact = 125 ° C
**----- End of picture text -----**
## **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 3[rd] block of ordering code
|Large-size capacitors|||
|---|---|---|
|Terminal version|Vibration stabilityversion||
||Standard|High|
|3 terminals 4.5 mm|M002|M003|
|Wired terminals|M008|M009|
Ordering examples:
|B41605E5129M002|}|large-size capacitor, snap-in version with 3 terminals and PET insulation|
|---|---|---|
|B41605E5129M003|}|large-size capacitor, snap-in version with 3 terminals,|
|||middle corrugation (high vibration stability) and PET insulation|
|B41605E5129M008|}|large-size capacitor, with wired terminals and PET insulation|
|B41605E5129M009|}|large-size capacitor, with wired terminals,|
|||middle corrugation (high vibration stability) and PET insulation|
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 7 of 18
**B41605 Compact** � **125** ° **C**
## **Overview of available types**
The capacitance and voltage ratings listed below are available in different case sizes upon request. Other voltage and capacitance ratings are also available upon request.
|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||||
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 8 of 18
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**B41605 Compact** � **125** ° **C**
## **Technical data and ordering codes**
|CR
100 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|IAC,max
10 kHz
125°C
A|IAC,R
10 kHz
125°C
A|Ordering code
(composition see
below)|
|---|---|---|---|---|---|---|---|
|VR= 25 V DC||||||||
|6800
9000
12000
18000
27000|22×40
25×40
25×50
30×50
35×50|22
18
13
11
10|115
80
55
45
32|19
15
12
11
11|9.5
10.5
13.2
14.3
14.6|6.5
7.1
9.0
9.8
10.0|B41605E5688M00*
B41605E5908M00*
B41605E5129M00*
B41605E5189M00*
B41605E5279M00*|
|VR= 40 V DC||||||||
|3900
5100
6800
10000
15000|22×40
25×40
25×50
30×50
35×50|26
21
16
13
11|115
80
60
45
32|19
15
11
11
11|9.5
10.5
13.2
14.4
14.7|6.5
7.1
9.0
9.9
10.1|B41605E7398M00*
B41605E7518M00*
B41605E7688M00*
B41605E7109M00*
B41605E7159M00*|
|VR= 55 V DC||||||||
|2500
3300
4700
6800
10000|22×40
25×40
25×50
30×50
35×50|31
24
18
15
13|115
80
60
45
35|19
15
12
11
11|9.5
10.5
13.2
14.3
14.6|6.4
7.1
9.0
9.8
10.0|B41605E0258M00*
B41605E0338M00*
B41605E0478M00*
B41605E0688M00*
B41605E0109M00*|
|VR= 63 V DC||||||||
|2000
2700
3900
5600
8100|22×40
25×40
25×50
30×50
35×50|35
26
20
16
13|115
85
65
45
35|19
15
12
11
11|9.5
10.4
13.2
14.3
14.6|6.4
7.0
9.0
9.8
10.0|B41605E8208M00*
B41605E8278M00*
B41605E8398M00*
B41605E8568M00*
B41605E8818M00*|
## **Composition of ordering code**
- = Version
- 2 = for snap-in version with 3 terminals
- 3 = for snap-in version with 3 terminals and middle corrugation
- 8 = for version with wired terminals
- 9 = for version with wired terminals and middle corrugation
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 9 of 18
**B41605 Compact** � **125** ° **C**
## **Useful life**[1)]
depending on ambient temperature TA under ripple current operating conditions at VR
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## **Useful life**[1)]
depending on case temperature TC under ripple current operating conditions at VR
**==> picture [36 x 60] intentionally omitted <==**
**==> picture [267 x 68] intentionally omitted <==**
1) Refer to chapter "General technical information, 5 Useful life" on how to interpret useful life.
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 10 of 18
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B41605
**----- End of picture text -----**
**Compact** � **125** ° **C**
## **Frequency factor of permissible ripple current IAC versus frequency f**
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**==> picture [108 x 99] intentionally omitted <==**
## **Equivalent series resistance ESR versus frequency f** Typical behavior for 3300 μF/55 V
**Frequency characteristics of ESR** Typical behavior
**==> picture [33 x 33] intentionally omitted <==**
**Impedance Z versus frequency f** Typical behavior for 3300 μF/55 V
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 11 of 18
**B41605 Compact** � **125** ° **C**
## **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.
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 12 of 18
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**----- Start of picture text -----**
B41605
Compact � 125 ° C
**----- End of picture text -----**
## **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 of opposite polarity should be prevented
byconnectinga 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 duringsoldering.|11.5
"Soldering"|
|Soldering,
cleaningagents|Do not allow halogenated hydrocarbons to come
into contact with aluminum electrolytic capacitors.|11.6
"Cleaningagents"|
|Upper category
temperature|Do not exceed the upper category temperature.|7.2
"Maximum permissible
operatingtemperature"|
|Passive
flammability|Avoid external energy, e.g. fire.|8.1
"Passive flammability"|
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 13 of 18
**B41605 Compact** � **125** ° **C**
|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 humidityof≤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 ordering codes are due to different processes employed and do not affect the specifications of the respective products.
Detailed information can be found on the Internet under www.tdk-electronics.tdk.com/orderingcodes.
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 14 of 18
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**B41605 Compact** � **125** ° **C**
## **Symbols and terms**
|Symbol|English|German|
|---|---|---|
|C
CR
CS
CS,T
Cf
d
dmax
ESL
ESR
ESRf
ESRT
f
I
IAC
IAC,RMS
IAC,f
IAC,max
IAC,R
Ileak
Ileak,op
l
lmax
R
Rins
Rsymm
T
ΔT
TA
TC
TB
t
Δt
tb|Capacitance
Rated capacitance
Series capacitance
Series capacitance at temperature T
Capacitance at frequency f
Case diameter, nominal dimension
Maximum case diameter
Self-inductance
Equivalent series resistance
Equivalent series resistance at
frequency f
Equivalent series resistance at
temperature T
Frequency
Current
Alternating current (ripple current)
Root-mean-square value of alternating
current
Ripple current at frequency f
Maximum permissible ripple current
Rated ripple current
Leakage current
Operating leakage current
Case length, nominal dimension
Maximum case length (without
terminals and mounting stud)
Resistance
Insulation resistance
Balancing resistance
Temperature
Temperature difference
Ambient temperature
Case temperature
Capacitor base temperature
Time
Period
Service life(operatinghours)|Kapazität
Nennkapazität
Serienkapazität
Serienkapazität bei Temperatur T
Kapazität bei Frequenz f
Gehäusedurchmesser, Nennmaß
Maximaler Gehäusedurchmesser
Eigeninduktivität
Ersatzserienwiderstand
Ersatzserienwiderstand bei Frequenz f
Ersatzserienwiderstand bei Temperatur T
Frequenz
Strom
Wechselstrom
Wechselstrom, Effektivwert
Wechselstrom bei Frequenz f
Maximal zulässiger Wechselstrom
Nennwechselstrom
Reststrom
Betriebsreststrom
Gehäuselänge, Nennmaß
Maximale Gehäuselänge (ohne Anschlüsse
und Gewindebolzen)
Widerstand
Isolationswiderstand
Symmetrierwiderstand
Temperatur
Temperaturdifferenz
Umgebungstemperatur
Gehäusetemperatur
Temperatur des Gehäusebodens
Zeit
Zeitraum
Brauchbarkeitsdauer(Betriebszeit)|
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 15 of 18
**B41605 Compact** � **125** ° **C**
|Symbol|English|German|
|---|---|---|
|V
VF
Vop
VR
VS
XC
XL
Z
ZT
tanδ
λ
ε0
εr
ω|Voltage
Forming voltage
Operating voltage
Rated voltage, DC voltage
Surge voltage
Capacitive reactance
Inductive reactance
Impedance
Impedance at temperature T
Dissipation factor
Failure rate
Absolute permittivity
Relative permittivity
Angular velocity; 2�π�f|Spannung
Formierspannung
Betriebsspannung
Nennspannung, Gleichspannung
Spitzenspannung
Kapazitiver Blindwiderstand
Induktiver Blindwiderstand
Scheinwiderstand
Scheinwiderstand bei Temperatur T
Verlustfaktor
Ausfallrate
Elektrische Feldkonstante
Dielektrizitätszahl
Kreisfrequenz; 2�π�f|
## **Note**
All dimensions are given in mm.
Please read _Cautions and warnings_ and _Important notes_ at the end of this document.
Page 16 of 18
## **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 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 Material 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 foregoing for customer-specific products.
6. Unless otherwise agreed in individual contracts, **all orders are subject to our General Terms and Conditions of Supply** .
Page 17 of 18
## **Important notes**
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
Page 18 of 18
## Links
- [View this product on Novapart](https://novapart.co/products/B41605E0478M008/electrolytic-capacitor-4700-f-55-v-20-radial)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/epcos/b41605e0478m008/cap-alu-elec-4700uf-55v-radial/dp/4688349)
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