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Power Capacitors  
The following products presented in this data sheet are being withdrawn.  
Ordering Code  
Substitute Product  
Date of  
Withdrawal  
Deadline Last  
Orders  
Last Shipments  
B25856K7505K003  
B25856K7504K013  
B25856K7405K003  
2014-08-14  
2014-08-14  
2014-08-14  
2015-03-31  
2015-03-31  
2015-03-31  
2016-09-30  
2016-09-30  
2016-09-30  
EPCOS AG 2015. 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.  
Ordering Code  
Substitute Product  
Date of  
Withdrawal  
Deadline Last  
Orders  
Last Shipments  
B25856K7355K003  
B25856K7255K003  
B25856K7205K003  
B25856K7155K013  
B25856K7105K003  
B25856K4755K003  
B25856K4504K013  
B25856K4255K003  
B25856K4204K003  
B25856K4105K003  
B25856K3504K003  
B25856K3255K003  
B25856K3104K003  
B25856K2504K003  
B25856K2405K003  
B25856K2305K003  
B25856K2255K003  
B25856K2205K003  
B25856K2204K003  
B25856K2105K003  
B25856K1755K003  
B25856K1505K003  
B25856K1255K003  
B25856K1204K003  
B25856K1155K003  
B25856K1106K003  
B25856K0755K003  
B25856K0405K003  
B25856K0205K003  
B25856K0204K003  
B25856K0156K003  
B25856K0155K003  
B25856K0105K003  
B25856J7305J003  
B25856J0474K003  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2014-08-14  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2015-03-31  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
2016-09-30  
For further information please contact your nearest EPCOS sales office, which will also support you in selecting a suitable  
substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.  
MKV AC, MKV DC Capacitors  
LSI Snubbering and Clamping  
B25856  
Features  
High dielectric strength  
High peak-current capability  
Extremely low inductance  
Construction  
Self-healing  
Plastic dielectric  
Oil-impregnated tubular windings (no PCB)  
Metal-sprayed end faces ensure reliable  
contacting  
Fully insulated case  
Axial version  
Terminals  
Internal thread M6 × 8 and M8 × 10  
Axial  
Mounting  
On the terminals  
Individual data sheets  
Individual data sheets contain detailed specification incl. thermal data.  
Upon request, these data sheets are available for each capacitor type.  
Please read Cautions and warnings and  
Important notes at the end of this document.  
2
09/05  
MKV AC, MKV DC Capacitors  
LSI Snubbering and Clamping  
B25856  
Technical data  
Standards  
IEC 1071-1/2  
EN 61071-1/2  
VDE 0560 part 120 and 121  
Dielectric dissipation factor  
Capacitance tolerance  
tan δ0  
2 x 10–4  
± 10%  
Max. repetitive rate  
of voltage rise  
î
---  
C
(dv/dt)max  
(dv/dt)s  
IS  
---  
C
Max. non-repetitive rate  
of voltage rise  
Climatic data:  
Min. operating temperature  
Max. operating temperature  
Average relative humidity  
Failure quota  
Tmin  
– 25 °C  
Tmax  
+ 85 °C  
95%  
αFQ(co)  
tLD(co)  
Tstg  
300 failures per 109 component hours  
Load duration  
100 000 h  
Storage temperature limit  
98 mm diameter: – 55/+ 85 °C  
103 mm diameter: – 30/+ 85 °C  
IEC climatic category  
(IEC 68-1 and 2)  
25/085/56  
Test A, cold  
– 25 °C  
Test B, dry heat  
+ 85 °C  
Test Ca, damp heat, steady state  
56 days/40 °C/93 % rel. humidity  
Values after test Ca:  
Capacitance change  
Insulation resistance  
Self-discharge time constant τ =  
Dissipation factor change  
Test data:  
ΔC/C  
Rins  
1%  
CR 1 μF: 10000 MΩ  
CR > 1 μF: 10000 s  
1 x 10–4  
Rins x C  
Δtan δ  
Voltage test between terminals  
DC test voltage  
VTT  
1.5 x VR, 10 s  
1.75 x VR, 10 s  
(VR = DC)  
(VR = AC)  
AC test voltage (rms value)  
Insulation resistance  
VTT  
Rins  
1.25 x VR, 50 Hz, 10 s  
(VR = AC)  
CR 1 μF: 10000 MΩ  
Self-discharge time constant  
Dissipation factor (50 Hz)  
τ =Rins x C CR > 1 μF: 10000 s  
tan δ  
3 x 10–4  
Please read Cautions and warnings and  
Important notes at the end of this document.  
3
09/05  
MKV AC, MKV DC Capacitors  
LSI Snubbering and Clamping  
B25856  
Characteristics and ordering codes  
1)  
CR  
Imax  
î
Is  
A
RS  
20 °C  
Lself Dimensions Fig. Appr. Ordering code  
d × l  
weight  
μF  
A
A
mΩ  
nH mm  
g
ˆ
VRDC = AC 1700 V  
VR = AC 1400 V  
v = 2000 V  
vs = 2900 V  
VTT = AC 1800 V, 10 s  
0.2  
0.47 80  
1
1.5  
2
4
7.5  
15  
30  
200  
470  
500 3.1  
<20 40 × 49  
<20 68 × 49  
<20 53 × 59  
<20 68 × 68  
<20 68 × 79  
<20 73 × 100  
<20 93 × 100  
<20 93 × 168  
1
1
1
2
2
2
2
2
130 B25856K0204K003  
300 B25856J0474K003  
200 B25856K0105K003  
500 B25856K0155K003  
550 B25856K0205K003  
700 B25856K0405K003  
1000 B25856K0755K003  
1600 B25856K0156K003  
1200 1.0  
3500 1.6  
3500 1.1  
5000 1.5  
6000 1.8  
7500 1.0  
7500 2.0  
60  
80  
70  
70  
80  
80  
1400  
1400  
2000  
2400  
3000  
3000  
ˆ
VRDC = AC 2000 V  
VR = AC 1700 V  
v = 2400 V  
vs = 3500 V  
VTT = AC 2200 V, 10 s  
0.2  
0.5  
1
2.5  
7.5  
30  
50  
50  
80  
80  
350  
600  
1200  
3000  
900 6.0  
<20 40 × 59  
<20 68 × 49  
<20 53 × 70  
<20 83 × 79  
<20 93 × 126  
1
1
1
2
2
150 B25856K4204K003  
300 B25856K4504K013  
250 B25856K4105K003  
700 B25856K4255K003  
1250 B25856K4755K003  
1500 1.1  
3000 2.4  
7500 1.0  
4200 10500 1.4  
ˆ
VRDC = AC 2500 V  
VR = AC 2100 V  
v = 3000 V  
vs = 4300 V  
VTT = AC 2700 V, 10 s  
0.2  
1.5  
2.5  
5
7.5  
10  
30  
80  
80  
80  
80  
80  
500  
3600  
3500  
5000 12500 1.5  
5000 13000 1.8  
6800 17000 1.4  
1200 6.1  
9000 0.9  
8800 1.3  
<20 40 × 70  
<20 83 × 79  
<20 83 × 100  
<20 93 × 142  
<20 98 × 173  
<20 108 × 173  
1
2
2
2
2
2
160 B25856K1204K003  
700 B25856K1155K003  
850 B25856K1255K003  
1400 B25856K1505K003  
1800 B25856K1755K003  
2200 B25856K1106K003  
1) Other capacitance values upon request  
Please read Cautions and warnings and  
Important notes at the end of this document.  
4
09/05  
MKV AC, MKV DC Capacitors  
LSI Snubbering and Clamping  
B25856  
Characteristics and ordering codes  
1)  
CR  
Imax  
î
Is  
A
RS  
20 °C  
Lself Dimensions Fig. Appr. Ordering code  
d × l  
weight  
μF  
A
A
mΩ  
nH mm  
g
ˆ
VRDC = AC 3000 V  
VR = AC 2500 V  
v = 3600 V  
vs = 5200 V  
VTT = AC 3200 V, 10 s  
0.5  
1
1.5  
2
2.5  
3
3.5  
4
5
70  
80  
80  
80  
80  
80  
80  
80  
80  
2200  
3000  
5500 1.9  
7500 1.1  
<20 68 × 79  
<20 83 × 79  
<20 93 × 79  
<20 88 × 100  
<20 98 × 100  
2
2
2
2
2
2
2
2
2
550 B25856K7504K013  
700 B25856K7105K003  
800 B25856K7155K013  
900 B25856K7205K003  
1100 B25856K7255K003  
1100 B25856J7305J003  
1400 B25856K7355K003  
1500 B25856K7405K003  
1800 B25856K7505K003  
4800 12000 0.7  
3600 9000 1.3  
4500 11000 1.0  
3600 9000 1.9  
4200 10500 1.7  
4800 12000 1.5  
6000 15000 1.2  
<10  
88 × 142  
<20 93 × 142  
<20 98 × 142  
<20 108 × 142  
ˆ
VRDC = AC 3300 V  
VR = AC 2800 V  
v = 4000 V  
vs = 5800 V  
VTT = AC 3500 V, 10 s  
0.1  
0.5  
2.5  
20  
70  
80  
350  
1800  
3500  
900 8.0  
4500 1.7  
8800 2.0  
<20 40 × 70  
<20 73 × 79  
<20 88 × 142  
1
2
2
160 B25856K3104K003  
600 B25856K3504K003  
1300 B25856K3255K003  
ˆ
VRDC = AC 4000 V  
VR = AC 3400 V  
v = 4800 V  
vs = 7000 V  
VTT = AC 4300 V, 10 s  
0.2  
0.5  
1
2
2.5  
3
50  
80  
80  
80  
80  
80  
80  
1200  
3000  
3500  
5000 12500 1.3  
3800 9400 2.3  
3000 2.6  
7500 1.1  
8800 1.3  
<20 53 × 70  
<20 83 × 79  
<20 88 × 105  
<20 98 × 126  
<20 88 × 168  
<20 98 × 168  
<20 108 × 168  
1
2
2
2
2
2
2
250 B25856K2204K003  
700 B25856K2504K003  
1000 B25856K2105K003  
1350 B25856K2205K003  
1500 B25856K2255K003  
1700 B25856K2305K003  
2100 B25856K2405K003  
4500 11000 2.0  
6000 15000 1.5  
4
1) Other capacitance values upon request  
Please read Cautions and warnings and  
Important notes at the end of this document.  
5
09/05  
MKV AC, MKV DC Capacitors  
LSI Snubbering and Clamping  
B25856  
Dimensional drawing 1  
Dimensional drawing 2  
Internal thread  
M8 x 10  
Internal thread  
M6 x 8  
ø22  
ø15 1  
ød max.  
ød max.  
ø15 1  
Internal thread  
M6 x 8  
ø22  
KLK1611-2  
Internal thread  
M8 x 10  
KLK1341-5  
d
max = 40 ... 68 mm:  
dmax = 68 ... 108 mm:  
Internal thread = M6 × 8  
Internal thread = M8 × 10  
Max. torque = 7 Nm  
Max. torque = 7 Nm  
Please read Cautions and warnings and  
Important notes at the end of this document.  
6
09/05  
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  
(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.  
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