Power Capacitors
Series/Type: B25838
The following products presented in this data sheet are being withdrawn.
Ordering Code Substitute Product Date of
Withdrawal Deadline Last
Orders Last Shipments
B25838L8475K004 2014-08-14 2015-03-31 2016-09-30
B25838L8226K004 2014-08-14 2015-03-31 2016-09-30
B25838L8186K004 2014-08-14 2015-03-31 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
B25838L8156K004 2014-08-14 2015-03-31 2016-09-30
B25838L8126K004 2014-08-14 2015-03-31 2016-09-30
B25838L8106K004 2014-08-14 2015-03-31 2016-09-30
B25838L6685K004 2014-08-14 2015-03-31 2016-09-30
B25838L6336K004 2014-08-14 2015-03-31 2016-09-30
B25838L6226K004 2014-08-14 2015-03-31 2016-09-30
B25838L6156K004 2014-08-14 2015-03-31 2016-09-30
B25838L6126K004 2014-08-14 2015-03-31 2016-09-30
B25838L6106K004 2014-08-14 2015-03-31 2016-09-30
B25838L4476K004 2014-08-14 2015-03-31 2016-09-30
B25838L4336K004 2014-08-14 2015-03-31 2016-09-30
B25838L4226K004 2014-08-14 2015-03-31 2016-09-30
B25838L4156K004 2014-08-14 2015-03-31 2016-09-30
B25838L4106K004 2014-08-14 2015-03-31 2016-09-30
B25838K8225K001 2014-08-14 2015-03-31 2016-09-30
B25838K8105K001 2014-08-14 2015-03-31 2016-09-30
B25838K6475K009 2014-08-14 2015-03-31 2016-09-30
B25838K6225K001 2014-08-14 2015-03-31 2016-09-30
B25838K6105K001 2014-08-14 2015-03-31 2016-09-30
B25838K4475K009 2014-08-14 2015-03-31 2016-09-30
B25838K4225K001 2014-08-14 2015-03-31 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.
Please read
Cautions and warnings
and
209/05
Important notes
at the end of this document.
MKV AC Ca pacitor s
Damping B25838
Features
■High dielectric strength
■High peak-current capability
Applications
■For damping and commutating in the upper frequency range
Construction
■Self-healing
■Plastic dielectric
■Oil-impregnated tubular windings (no PCB)
■Metal-sprayed end faces ensure reliable contacting
■Cylindrical aluminum case
■Ceramic lead-throughs
■Mounting bolts M8 or M12
Terminals
■Screw terminals M10
■Tab connectors 6.3 mm
■Dual tab connectors 6.3 mm
Mounting
■If the vibration stress is ≤ 5
g
and the capacitors are ≤ 60 mm in diameter
and ≤ 160 mm in height the bolt is used for mounting.
Grounding
■Mounting bolt for grounding in accordance with VDE 0100
■Grounding identification in accordance with DIN 40 011
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
309/05
Important notes
at the end of this document.
MKV AC Ca pacitor s
Damping B25838
Technical data
Standards IEC 1071-1/2
EN 61071-1/2
VDE 0560 part 120 and 121
Dielectric dissipation factor tan δ02 · 10–4
Capacitance tolerance ± 10%
Max. repetitive rate
of voltage rise (dv/dt)max
Max. non-repetitive rate
of voltage rise (dv/dt)s
Climatic data:
Min. operating temperature Tmin – 25 °C
Max. operating temperature Tmax + 85 °C
Average relative humidity ≤95 %
Failure quota αFQ(co) 300 failures per 109 component hours
Load duration tLD(co) 100 000 h
Storage temperature limit Tstg – 55/+ 85 °C
IEC climatic category
(IEC 68-1 and 2)
25/085/56
Test data:
AC test voltage
between terminals VTT 1,25 · VR, 50 Hz, 10 s (or DC 1.75 x VR, 10 s)
between terminals and case VTC 2 · Vi + 1000 V, 50 Hz, 10 s
Insulating voltage Vi = max. recurrent peak
voltage /
Insulation resistance Rins CR ≤ 1 μF: ≥10 000 MΩ
Self-discharge time constant τ =Rins · C CR >1 μF: ≥10 000 s
Dissipation factor (50 Hz) tan δ≤ 3 . 10 –4
î
C
----
IS
C
----
v
ˆ
2
Please read
Cautions and warnings
and
409/05
Important notes
at the end of this document.
MKV AC Ca pacitor s
Damping B25838
Characteristics and ordering codes
CR1)
μF
Imax
A
î
A
Is
A
Rins
20 °C
mΩ
Lself
nH
Dimensions
d × l
mm
Fig. Appr.
weight
g
Ordering code
VR = AC 600 V = 750 V
vs= 1000 V
VTT = AC 750 V, 10 s
VTC = AC 2100 V, 10 s
2.2 20 350 880 8.0 60 40.0 × 57 3 90 B25838K4225K001
4.7 40 750 1900 4.5 70 40.0 × 95 2 140 B25838K4475K009
10 80 1600 4000 2.4 90 64.2 × 115 1 450 B25838L4106K004
15 80 2400 6000 2.2 140 79.2 × 194 1 1100 B25838L4156K004
22 80 3500 8800 1.7 140 79.2 × 194 1 1100 B25838L4226K004
33 80 5300 13000 1.4 140 79.2 × 194 1 1100 B25838L4336K004
47 80 7500 19000 1.1 140 79.2 × 194 1 1100 B25838L4476K004
VR = AC 900 V = 1100 V
vs= 1500 V
VTT = AC 1150 V, 10 s
VTC = AC 2600 V, 10 s
1.0 20 280 700 9.6 60 40.0 × 57 3 90 B25838K6105K001
2.2 20 620 1500 4.9 60 50.0 × 57 3 130 B25838K6225K001
4.7 40 1300 3300 3.1 70 50.0 × 95 2 220 B25838K6475K009
6.8 80 1900 4800 2.0 90 64.2 × 115 1 450 B25838L6685K004
10 80 2800 7000 1.9 140 79.2 × 194 1 1100 B25838L6106K004
12 80 3400 8400 1.7 140 79.2 × 194 1 1100 B25838L6126K004
15 80 4200 10500 1.5 140 79.2 × 194 1 1100 B25838L6156K004
22 80 6200 15000 1.2 140 79.2 × 194 1 1100 B25838L6226K004
33 80 9200 23000 1.1 140 89.3 × 194 1 1500 B25838L6336K004
VR = AC 1100 V = 1400 V
vs= 1900 V
VTT = AC 1400 V, 10 s
VTC = AC 3000 V, 10 s
1,0 20 600 1500 13,0 90 40,0 × 95 3 140 B25838K8105K001
2,2 20 1300 3300 6,5 70 50,0 × 95 3 220 B25838K8225K001
4,7 80 2800 7000 3,5 170 64,2 × 194 1 750 B25838L8475K004
10 80 6000 15000 2,1 170 79,2 × 194 1 1100 B25838L8106K004
12 80 7200 18000 2,0 170 89,3 × 194 1 1500 B25838L8126K004
15 80 9000 23000 1,7 170 89,3 × 194 1 1500 B25838L8156K004
18 80 11000 27000 1,5 170 89,3 × 194 1 1500 B25838L8186K004
22 80 13000 33000 1,4 170 89,3 × 194 1 1500 B25838L8226K004
1) Other capacitance values upon request
v
ˆ
v
ˆ
v
ˆ
Please read
Cautions and warnings
and
509/05
Important notes
at the end of this document.
MKV AC Ca pacitor s
Damping B25838
Dimensional drawing 1
Screw terminals M10
Dimensions in mm
Mounting parts (included in delivery)
d
–1,2
I
–4 ∅
d
1 –0,4
I
1 min
Creepage
distance
k
Clear-
ance
64.2 115 60.2 78 20 13
64.2 194 60.2 150 20 13
79.2 194 75.2 150 20 13
89.3 194 85.2 150 20 13
Max. torque terminals*) 7 Nm
Threaded bolt Max. torque Toothed washer Hex nut
M8 4 Nm J 8.2 DIN 6797 M 8 DIN 439
M12 10 Nm J 12.5 DIN 6797 M12 DIN 439
KLK1440
-
3
~
16+1
l
M10
ød
1
13 min.
Hex nut
M12
35
M10 DIN 439
1
10,5 DIN 433
Washer
4
~
k
ld
_
24,5 2
357
_
1)
*) The terminal torque must not act upon the ceramic. So the lead should be locked between to nuts.
1) Dimensions only for orientation, subject for modifications
Dimensional drawing 2
Dual tab connectors 6.3 mm
Dimensions in mm
**) 8 mm = threaded bolt M8
12 mm = threaded bolt M12
dIl
1 max
l
2 +1**)
Creepage
distance
Clear-
ance
40 95 28 8 10 9
50 95 32 12 14 9
KLK1441-B
Tab connector
9 min.
21±1
A 6,3 x 0,8
DIN 46 244
d l l
12
l
+0,5
–
0,2 +1
–
2
Please read
Cautions and warnings
and
609/05
Important notes
at the end of this document.
MKV AC Ca pacitor s
Damping B25838
Dimensional drawing 3
Tab connectors 6.3 mm
Dimensions in mm
*) 8 mm = threaded bolt M8, 12 mm =threaded bolt M12
**) Type B25838K4225K001
dIl
1 max
l
2 +1*)
Creepage
distance
Clear-
ance
40 57 28 8 10**) 9
40 57 32 8 14 9
40 95 32 8 14 9
50 57 32 12 14 9
50 95 32 12 14 9
Mounting parts (included in delivery)
Threaded bolt Max. torque Toothed washer Hex nut
M8 4 Nm J 8,2 DIN 6797 M 8 DIN 439
M12 10 Nm J 12,5 DIN 6797 M 12 DIN 439
KLK1442-J
Tab connector
9 min.
21±1
A 6,3 x 0,8
DIN 46 244
d l l
12
l
+0,5
–
0,2 +1
–
2
709/05
MKV AC Ca pacitor s
Damping, Commutating B25838
Cautions and warnings
Safety
■In case of dents of more than 1 mm depth or any other mechanical damage, capacitors must not
be used at all. This applies also in cases of oil leakage.
■Electrical or mechanical misapplication of capacitors may be hazardous. Personal injury or prop-
erty damage may result from bursting of the capacitor or from expulsion of oil or melted material
due to mechanical disruption of the capacitor.
■Ensure good, effective grounding for capacitor enclosures.
■Observe appropriate safety precautions during operation (self-recharging phenomena and the
high energy contained in capacitors).
■Handle capacitors carefully, because they may still be charged even after disconnection.
■The terminals of capacitors, connected bus bars and cables as well as other devices may also
be energized.
■Follow good engineering practice.
■Failure to follow cautions may result, worst case, in premature failures, bursting and fire.
Thermal load
After installation of the capacitor it is necessary to verify that maximum hot-spot temperature is not
exceeded at extreme service conditions (see www.epcos.com/thermal_design).
Mechanical protection
The capacitor has to be installed in a way that mechanical damages and dents in the aluminum can
are avoided.
Storage and operating conditions
Do not use or store capacitors in corrosive atmosphere especially where chloride gas, sulfide gas,
acid, alkali, salt or the like are present. In dusty environments, regular maintenance and cleaning
especially of the terminals is required to avoid conductive path between phases and/or phases and
ground.
Overpressure disconnector
To ensure full functionality of an overpressure disconnector, the following must be observed:
■The elastic elements must not be hindered, i.e.
– connecting lines must be flexible leads (cables),
– there must be sufficient space (minimum 12 mm) above the connections for expansion of the
overpressure disconnector,
– folding crimps must not be retained by clamps.
■Stress parameters of the capacitor must be within the IEC61071 specification.
Service life expectancy
Electrical components do not have an unlimited service life expectancy; this applies to self-healing
capacitors too. The maximum service life expectancy may vary depending on the application the
capacitor is used in.
809/05
Importan t not es
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 require-
ments that are often placed on our products in the areas of application concerned. We neverthe-
less 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 passive 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 re-
quiring a very high level of operational safety and especially in customer applications in which the
malfunction or failure of a passive 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 suit-
able 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 a passive 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 pub-
lication may contain substances subject to restrictions in certain jurisdictions (e.g. be-
cause 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 pr oduction and delivery of products. Consequent-
ly, we cannot guarantee that all products named in this publication will always be available.
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).
7. The trade names EPCOS, CeraDiode, CSSP, PhaseCap, PhaseMod, SilverCap, SIFI, SIMID,
SIKOREL, SIOV, SIP5D, SIP5K, TOPcap, UltraCap, 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.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
EPCOS:
B25838K4225K001 B25838K4475K009 B25838L4156K004 B25838L4226K004 B25838L4336K004
B25838L4476K004 B25838L6126K004 B25838L6226K004 B25838L6336K004 B25838K8225K001
B25838L8475K004 B25838L8126K004 B25838L8156K004 B25838L8226K004 B25838T0156J004
B25838A8474M000 B25838T8225J004 B25838T0126K004 B25838T0335K004 B25838T0225K004
B25838K8186K004 B25838T6685K004 B25838T6126K004 B25838A6684M000 B25838K8126K004
EPCOS / TDK:
B25838L4106K004 B25838K6105K001 B25838K6225K001 B25838K6475K009 B25838L6106K004
B25838L6156K004 B25838K8105K001 B25838L8106K004 B25838L8186K004 B25838A6474M000
B25838U4256K004 B25838T6605K000 B25838T8186K004 B25838T6126K000 B25838T5605K014
B25838A8224M000
