B41570E7479Q000

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## **Aluminum electrolytic capacitors** 

Capacitors with screw terminals 

**Series/Type: B41550, B41570** 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. 

**B41550, B41570** 

**Capacitors with screw terminals SIKOREL 105** ° **C** 

## **Long-life grade capacitors** 

## **Applications** 

Highly professional power supplies 

## **Features** 

- Outstanding reliability 

- Operation at temperatures up to 125 °C permissible without insulating sleeve[1)] 

- High ripple current capability 

B41550 B41570 

- Long useful life 

- _ 

- SIKOREL design storage for up to 10 years at a temperature of up to 35 °C 

- All-welded construction ensures reliable electrical contact RoHS-compatible 

## **Construction** 

- Charge-discharge proof, polar 

- Aluminum case, insulated with PVC sleeve 

- Version with PET insulation available upon request 

- Poles with screw terminal connections 

- Mounting with ring clips, clamps or threaded stud 

- Types with threaded stud are available with or without insulated base 

1) For ∅ = 51.6 mm: 2500 h, for ∅≥ 64.3 mm: 5000 h 

Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 2 of 18 

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**B41550, B41570 SIKOREL** � **105** ° **C** 

## **Specifications and characteristics in brief** 

|Rated voltage VR<br>Surge voltage VS|16 ... 100 V DC<br>1.15�VR|16 ... 100 V DC<br>1.15�VR|16 ... 100 V DC<br>1.15�VR|16 ... 100 V DC<br>1.15�VR|
|---|---|---|---|---|
|Rated capacitance CR<br>Capacitance tolerance|4700 ... 220000 μF<br>�10/+30%�Q||||
|Leakage current Ileak<br>(20°C, 5 min)|||||
|Self-inductance ESL|d = 51.6 mm:<br>d≥64.3 mm:||approx. 15 nH<br>approx. 20 nH||
|Useful life1)<br>105°C; VR; IAC,R<br>85°C; VR; IAC,max<br>40°C; VR; 2.4�IAC,R<br>40°C; VR; 2.7�IAC,R|d = 51.6 mm||d≥64.3 mm|Requirements:<br>�ΔC/C�<br>≤45% of initial value<br>ESR<br>≤3 times initial specified limit<br>Ileak<br>≤initial specified limit|
||> 10000 h<br>> 15000 h<br>> 200000 h<br>�||> 20000 h<br>> 25000 h<br>�<br>> 200000 h||
|Voltage endurance test<br>105°C; VR; IAC,R|5000 h|||Post test requirements:<br>�ΔC/C�<br>≤±15% of initial value<br>ESR<br>≤1.3 times initial specified limit<br>Ileak<br>≤initial specified limit|
|Vibration resistance test|To IEC 60068-2-6, test Fc:<br>Frequency range 10 ... 55 Hz, displacement amplitude 0.75 mm,<br>acceleration max. 10_g_, duration 3×2 h.<br>Capacitor mounted by its body which is rigidly clamped to the work<br>surface.||||
|IEC climatic category|To IEC 60068-1:<br>55/105/56(�55°C/+105°C/56 days dampheat test)||||
|Detail specification<br>Sectional specification|Similar to CECC 30301-804<br>IEC 60384-4||||



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 3 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

## **Ripple current capability** 

Due to the ripple current capability of the contact elements, the following current upper limits must not be exceeded: 

|Capacitor diameter|51.6 mm|> 51.6 mm|
|---|---|---|
|IAC,max|30 A|40 A|



## **Dimensional drawings** 

## **B41550 B41570** 

Ring clip/clamp mounting Threaded stud mounting 

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For standard types with threaded stud the base is not insulated. Also refer to the mounting instructions in chapter "Capacitors with screw terminals � Accessories". 

## **Dimensions and weights** 

|Ter-<br>minal|Dimensions (mm) with insulating<br>d<br>l±1<br>l1±1|Dimensions (mm) with insulating<br>d<br>l±1<br>l1±1|Dimensions (mm) with insulating<br>d<br>l±1<br>l1±1|sleeve<br>l2+0/�1|d1|d2max.|a +0.2/�0.4|Approx.<br>weight (g)|
|---|---|---|---|---|---|---|---|---|
|M5|51.6 +0.5/�1|80.7|87.0|17|M12|8.2|22.2|220|
|M5<br>M5|64.3 +0.5/�1<br>64.3 +0.5/�1|80.7<br>105.7|87.0<br>112.0|17<br>17|M12<br>M12|8.2<br>8.2|28.5<br>28.5|370<br>440|
|M5<br>M5|76.9 +0.5/�1<br>76.9 +0.5/�1|105.7<br>143.2|112.0<br>149.5|17<br>17|M12<br>M12|8.2<br>8.2|31.7<br>31.7|620<br>840|



Tolerances of terminal thread respectively stud thread: 

- Terminal thread M5: 6H 

- Thread of stud M12: 6g 

Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 4 of 18 

**B41550, B41570 SIKOREL 105** ° **C** 

|**Packing**|||
|---|---|---|
|Capacitor diameter d|Length l|Packing units|
|(mm)|(mm)|(pcs.)|
|51.6|all|36|
|64.3|all|25|
|76.9|all|16|



For ecological reasons the packing is pure cardboard. 

Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 5 of 18 

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**----- Start of picture text -----**<br>
a ;<br>**----- End of picture text -----**<br>


## **B41550, B41570 SIKOREL 105** 

**105** ° **C** 

## **Special design** 

## i Insulated base 

Length l and l1 increase by +0.5 mm for types with threaded stud and insulated base. All other dimensions of the capacitor are identical with those of standard capacitors of this series. 

Please refer to the table "Dimensions and weights". 

## **Design options** 

|Design options|Identification in third<br>block of orderingcode|Remark|
|---|---|---|
|Standard|Q000|Standard version without threaded stud:<br>fully insulated with PVC<br>Standard version with threaded stud:<br>insulated with PVC sleeve, base not insulated|
|Insulated base|Q008|For capacitors with threaded stud, fully<br>insulated with PVC sleeve and PP disc|



## **Accessories** 

The following items are included in the delivery package, but are not fastened to the capacitors: 

||Thread|Toothed<br>washers|Screws/nuts|Maximum<br>torque|
|---|---|---|---|---|
|For terminals|M5|A 5.1 DIN 6797|DIN 7985 / ISO 7045-M5×10-5.6-Z|2 Nm|
|For mounting|M12|J 12.5 DIN 6797|Hex nut BM 12 DIN 439|10 Nm|



The following items must be ordered separately. For details, refer to chapter "Capacitors with screw terminals Accessories". 

|Item|Type|
|---|---|
|Ringclips|B44030|
|Clamps for capacitors with d≥64.3 mm|B44030|
|Insulating parts|B44020|



Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 6 of 18 

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**B41550, B41570 SIKOREL** � **105** ° **C** 

## **Overview of available types** 

The capacitance and voltage ratings listed above are available in different case sizes upon request. Other voltage and capacitance ratings are also available upon request. 

|VR (V DC)|16|25|40|63|100|
|---|---|---|---|---|---|
||Case dimensions d×l(mm)|||||
|CR (μF)||||||
|4700|||||51.6×<br>80.7|
|6800|||||64.3×<br>80.7|
|10000||||51.6×<br>80.7|64.3×<br>80.7|
|15000||||64.3×<br>80.7|64.3×105.7|
|22000|||51.6×<br>80.7|64.3×105.7|76.9×105.7|
|33000||51.6×<br>80.7|64.3×<br>80.7|76.9×105.7|76.9×143.2|
|47000|51.6×<br>80.7|64.3×<br>80.7|64.3×105.7|76.9×143.2||
|68000|64.3×<br>80.7|64.3×105.7|76.9×105.7|||
|100000|64.3×105.7|76.9×105.7|76.9×143.2|||
|150000|76.9×105.7|76.9×143.2||||
|220000|76.9×143.2|||||



Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 7 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

**Technical data and ordering codes** 

|CR<br>100 Hz<br>20°C<br>μF|Case<br>dimensions<br>d×l<br>mm|ESRtyp<br>100 Hz<br>20°C<br>mΩ|ESRmax<br>100 Hz<br>20°C<br>mΩ|Zmax<br>10 kHz<br>20°C<br>mΩ|IAC,max<br>100 Hz<br>40°C<br>A|IAC,max<br>100 Hz<br>85°C<br>A|IAC,R<br>100 Hz<br>105°C<br>A|Ordering code<br>(composition see<br>below)|
|---|---|---|---|---|---|---|---|---|
|VR= 16 V DC|||||||||
|47000<br>68000<br>100000<br>150000<br>220000|51.6×<br>80.7<br>64.3×<br>80.7<br>64.3×105.7<br>76.9×105.7<br>76.9×143.2|5.0<br>5.0<br>4.0<br>4.0<br>4.0|13<br>13<br>10<br>10<br>8.0|13<br>13<br>9.0<br>10<br>7.0|30<br>40<br>40<br>40<br>40|30<br>38<br>39<br>40<br>40|16<br>17<br>19<br>22<br>26|B415*0E4479Q00#<br>B415*0E4689Q00#<br>B415*0E4100Q00#<br>B415*0E4150Q00#<br>B415*0A4220Q00#|
|VR= 25 V DC|||||||||
|33000<br>47000<br>68000<br>100000<br>150000|51.6×<br>80.7<br>64.3×<br>80.7<br>64.3×105.7<br>76.9×105.7<br>76.9×143.2|6.0<br>5.0<br>5.0<br>4.0<br>4.0|13<br>13<br>11<br>9.0<br>7.0|12<br>11<br>9.0<br>8.0<br>6.0|30<br>40<br>40<br>40<br>40|29<br>34<br>35<br>39<br>40|15<br>17<br>17<br>21<br>26|B415*0E5339Q00#<br>B415*0E5479Q00#<br>B415*0E5689Q00#<br>B415*0E5100Q00#<br>B415*0A5150Q00#|
|VR= 40 V DC|||||||||
|22000<br>33000<br>47000<br>68000<br>100000|51.6×<br>80.7<br>64.3×<br>80.7<br>64.3×105.7<br>76.9×105.7<br>76.9×143.2|6.0<br>5.0<br>5.0<br>4.0<br>4.0|13<br>12<br>8.0<br>9.0<br>7.0|13<br>12<br>8.0<br>7.0<br>6.0|30<br>40<br>40<br>40<br>40|29<br>34<br>35<br>39<br>40|15<br>17<br>17<br>21<br>26|B415*0E7229Q00#<br>B415*0E7339Q00#<br>B415*0E7479Q00#<br>B415*0E7689Q00#<br>B415*0A7100Q00#|
|VR= 63 V DC|||||||||
|10000<br>15000<br>22000<br>33000<br>47000|51.6×<br>80.7<br>64.3×<br>80.7<br>64.3×105.7<br>76.9×105.7<br>76.9×143.2|7.0<br>6.0<br>5.0<br>4.0<br>3.0|18<br>13<br>10<br>8.0<br>7.0|14<br>11<br>9.0<br>8.0<br>6.0|30<br>40<br>40<br>40<br>40|27<br>31<br>35<br>39<br>40|13<br>15<br>17<br>21<br>26|B415*0E8109Q00#<br>B415*0E8159Q00#<br>B415*0E8229Q00#<br>B415*0E8339Q00#<br>B415*0A8479Q00#|
|VR= 100 V DC|||||||||
|4700<br>6800<br>10000<br>15000<br>22000<br>33000|51.6×<br>80.7<br>64.3×<br>80.7<br>64.3×<br>80.7<br>64.3×105.7<br>76.9×105.7<br>76.9×143.2|15<br>10<br>8.0<br>7.0<br>6.0<br>5.0|29<br>20<br>15<br>13<br>11<br>9.0|20<br>17<br>14<br>11<br>9.0<br>8.0|28<br>36<br>40<br>40<br>40<br>40|20<br>26<br>32<br>36<br>38<br>40|10<br>13<br>16<br>18<br>19<br>23|B415*0E9478Q00#<br>B415*0E9688Q00#<br>B415*0E9109Q00#<br>B415*0E9159Q00#<br>B415*0A9229Q00#<br>B415*0A9339Q00#|



## **Composition of ordering code** 

- = Mounting style 

   - 5 = for capacitors with ring clip/clamp mounting 

   - 7 = for capacitors with threaded stud 

- # = Design 

   - 0 = standard 

   - 8 = insulated base 

   - For details refer to "Design options" on page 6. 

Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 8 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

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## **Useful life**[1)] 

depending on ambient temperature TA under ripple current operating conditions d = 51.6 mm 

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## **Useful life**[1)] 

depending on ambient temperature TA under ripple current operating conditions d ≥ 64.3 mm 

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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 9 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

## **Frequency factor of permissible ripple current IAC versus frequency f** 

|VR (V DC)|16; 25|40|63|100|
|---|---|---|---|---|
|d = 51.6 mm|a|b|c|c|
|d = 64.3 mm|a|a|c|c|
|d = 76.9 mm|a|a|b|c|



**Frequency characteristics of ESR** Typical behavior 

|VR (V DC)|16; 25|40|63|100|
|---|---|---|---|---|
|d = 51.6 mm|a|b|c|c|
|d = 64.3 mm|a|a|c|c|
|d = 76.9 mm|a|a|b|c|



Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 10 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

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## **Impedance Z versus frequency f** 

Typical behavior at 20 °C 

|CR<br>μF|VR<br>V DC|d<br>mm|Curve|
|---|---|---|---|
|150000<br>68000|16<br>40|76.9<br>76.9|a<br>b|
|15000|100|64.3|c|



Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 11 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

## **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 (DMAC). 

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. 

Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 12 of 18 

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**B41550, B41570 SIKOREL** � **105** ° **C** 

## **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<br>chapter "General<br>technical information"|
|---|---|---|
|Polarity|Make sure that polar capacitors are connected<br>with the right polarity.|1<br>"Basic construction of<br>aluminum electrolytic<br>capacitors"|
|Reverse voltage|Voltages of opposite polarity should be prevented<br>byconnectinga diode.|3.1.6<br>"Reverse voltage"|
|Mounting<br>position of screw-<br>terminal capacitors|Screw terminal capacitors must not be mounted<br>with terminals facing down unless otherwise<br>specified.|11.1.<br>"Mounting positions of<br>capacitors with screw<br>terminals"|
|Robustness of<br>terminals|The following maximum tightening torques must<br>not be exceeded when connecting screw<br>terminals:<br>M5: 2.5 Nm<br>M6: 4.0 Nm|11.3<br>"Mounting torques"|
|Mounting of<br>single-ended<br>capacitors|The internal structure of single-ended capacitors<br>might be damaged if excessive force is applied to<br>the lead wires.<br>Avoid any compressive, tensile or flexural stress.<br>Do not move the capacitor after soldering to PC<br>board.<br>Do not pick up the PC board by the soldered<br>capacitor.<br>Do not insert the capacitor on the PC board with a<br>hole space different to the lead space specified.|11.4<br>"Mounting<br>considerations for<br>single-ended capacitors"|
|Soldering|Do not exceed the specified time or temperature<br>limits duringsoldering.|11.5<br>"Soldering"|
|Soldering,<br>cleaningagents|Do not allow halogenated hydrocarbons to come<br>into contact with aluminum electrolytic capacitors.|11.6<br>"Cleaningagents"|
|Upper category<br>temperature|Do not exceed the upper category temperature.|7.2<br>"Maximum permissible<br>operatingtemperature"|
|Passive<br>flammability|Avoid external energy, e.g. fire.|8.1<br>"Passive flammability"|



Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 13 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

|Topic|Safety information|Reference<br>chapter "General<br>technical information"|
|---|---|---|
|Active<br>flammability|Avoid overload of the capacitors.|8.2<br>"Active flammability"|
|Maintenance|Make periodic inspections of the capacitors.<br>Before the inspection, make sure that the power<br>supply is turned off and carefully discharge the<br>capacitors.<br>Do not apply excessive mechanical stress to the<br>capacitor terminals when mounting.|10<br>"Maintenance"|
|Storage|Do not store capacitors at high temperatures or<br>high humidity. Capacitors should be stored at<br>+5 to +35°C and a relative humidityof≤75%.|7.3<br>"Shelf life and storage<br>conditions"|
|||Reference<br>chapter "Capacitors with<br>screw terminals"|
|Breakdown strength<br>of insulating<br>sleeves|Do not damage the insulating sleeve, especially<br>when ring clips are used for mounting.|"Screw terminals�<br>accessories"|



## **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 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.epcos.com/orderingcodes. 

Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 14 of 18 

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**B41550, B41570 SIKOREL** � **105** ° **C** 

## **Symbols and terms** 

|Symbol|English|German|
|---|---|---|
|C<br>CR<br>CS<br>CS,T<br>Cf<br>d<br>dmax<br>ESL<br>ESR<br>ESRf<br>ESRT<br>f<br>I<br>IAC<br>IAC,RMS<br>IAC,f<br>IAC,max<br>IAC,R<br>Ileak<br>Ileak,op<br>l<br>lmax<br>R<br>Rins<br>Rsymm<br>T<br>ΔT<br>TA<br>TC<br>TB<br>t<br>Δt<br>tb|Capacitance<br>Rated capacitance<br>Series capacitance<br>Series capacitance at temperature T<br>Capacitance at frequency f<br>Case diameter, nominal dimension<br>Maximum case diameter<br>Self-inductance<br>Equivalent series resistance<br>Equivalent series resistance at<br>frequency f<br>Equivalent series resistance at<br>temperature T<br>Frequency<br>Current<br>Alternating current (ripple current)<br>Root-mean-square value of alternating<br>current<br>Ripple current at frequency f<br>Maximum permissible ripple current<br>Rated ripple current<br>Leakage current<br>Operating leakage current<br>Case length, nominal dimension<br>Maximum case length (without<br>terminals and mounting stud)<br>Resistance<br>Insulation resistance<br>Balancing resistance<br>Temperature<br>Temperature difference<br>Ambient temperature<br>Case temperature<br>Capacitor base temperature<br>Time<br>Period<br>Service life(operatinghours)|Kapazität<br>Nennkapazität<br>Serienkapazität<br>Serienkapazität bei Temperatur T<br>Kapazität bei Frequenz f<br>Gehäusedurchmesser, Nennmaß<br>Maximaler Gehäusedurchmesser<br>Eigeninduktivität<br>Ersatzserienwiderstand<br>Ersatzserienwiderstand bei Frequenz f<br>Ersatzserienwiderstand bei Temperatur T<br>Frequenz<br>Strom<br>Wechselstrom<br>Wechselstrom, Effektivwert<br>Wechselstrom bei Frequenz f<br>Maximal zulässiger Wechselstrom<br>Nennwechselstrom<br>Reststrom<br>Betriebsreststrom<br>Gehäuselänge, Nennmaß<br>Maximale Gehäuselänge (ohne Anschlüsse<br>und Gewindebolzen)<br>Widerstand<br>Isolationswiderstand<br>Symmetrierwiderstand<br>Temperatur<br>Temperaturdifferenz<br>Umgebungstemperatur<br>Gehäusetemperatur<br>Temperatur des Gehäusebodens<br>Zeit<br>Zeitraum<br>Brauchbarkeitsdauer(Betriebszeit)|



Please read _Cautions and warnings_ and _Important notes_ at the end of this document. 

Page 15 of 18 

**B41550, B41570 SIKOREL** � **105** ° **C** 

|Symbol|English|German|
|---|---|---|
|V<br>VF<br>Vop<br>VR<br>VS<br>XC<br>XL<br>Z<br>ZT<br>tanδ<br>λ<br>ε0<br>εr<br>ω|Voltage<br>Forming voltage<br>Operating voltage<br>Rated voltage, DC voltage<br>Surge voltage<br>Capacitive reactance<br>Inductive reactance<br>Impedance<br>Impedance at temperature T<br>Dissipation factor<br>Failure rate<br>Absolute permittivity<br>Relative permittivity<br>Angular velocity; 2�π�f|Spannung<br>Formierspannung<br>Betriebsspannung<br>Nennspannung, Gleichspannung<br>Spitzenspannung<br>Kapazitiver Blindwiderstand<br>Induktiver Blindwiderstand<br>Scheinwiderstand<br>Scheinwiderstand bei Temperatur T<br>Verlustfaktor<br>Ausfallrate<br>Elektrische Feldkonstante<br>Dielektrizitätszahl<br>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, EPCOS is 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 an EPCOS 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.epcos.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 the current version of the "General Terms of Delivery for Products and Services in the Electrical Industry" published by the German Electrical and Electronics Industry Association (ZVEI)** . 

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## **Important notes** 

7. The trade names EPCOS, CeraDiode, CeraLink, CeraPad, CeraPlas, CSMP, CSSP, CTVS, DeltaCap, DigiSiMic, DSSP, ExoCore, FilterCap, FormFit, LeaXield, MiniBlue, MiniCell, MKD, MKK, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, PQSine, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, TFAP, ThermoFuse, WindCap are **trademarks registered or pending** in Europe and in other countries. Further information will be found on the Internet at www.epcos.com/trademarks. 

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