MKV AC Capacitors
Damping, Commutating
B 25 838
High dielectric strength
High peak-current capability
For damping and commutating in
the upper frequency range
Construction
q
q
q
q
q
q
q
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
q
Screw terminals M10
q
Tab connectors 6,3 mm
q
Dual tab connectors 6,3 mm
Mounting parts
q
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.
q
In case of a vibration stress > 5
g
as well as for larger-sized capacitors refer
to chapter “Mounting parts”.
Grounding
q
Mounting bolt for grounding in accordance with VDE 0100
q
Grounding identification in accordance with DIN 40 011
Overpressure disconnector (mechanical)
When the overpressure disconnector responds,
the capacitor extends by up to 8 mm.
So leave sufficient space above the terminals
when mounting the capacitor.
Individual data sheets
Individual capacitors of this series are specified in detail
(incl. thermal data)
on pages 192 … 205.
Upon request, these data sheets are available for each capacitor type.
186
Siemens Matsushita Components
B 25 838
Damping, Commutating
Technical data
Standards
IEC 1071-1/2
EN 61071-1/2
VDE 0560 part 120 and 121
2 · 10
–4
Dielectric dissipation factor
Max. repetitive rate
of voltage rise
Max. non-repetitive rate
of voltage rise
Climatic data:
Min. operating temperature
Max. operating temperature
Average relative humidity
Failure quota
Load duration
Storage temperature limit
IEC climatic category
(IEC 68-1 and 2)
Test A, cold
Test B, dry heat
Test Ca, damp heat, steady state
Values after test Ca:
Capacitance change
Insulation resistance
Self-discharge time constant
τ
=
Dissipation factor change
Test data:
AC test voltage
between terminals
between terminals and case
Insulation resistance
Self-discharge time constant
τ
=
Dissipation factor (50 Hz)
tan
δ
0
(du/dt)
max
(du/dt)
s
Θ
min
Θ
max
α
FQ(co)
t
LD(co)
Θ
stg
î
---
-
C
I
S
---
-
C
– 25
°C
+ 85
°C
≤
95 %
300 failures per 10
9
component hours
100 000 h
– 55/+ 85
°C
25/085/56
– 25
°C
+ 85
°C
56 days/40
°C/93
% rel. humidity
∆
C
/
C
R
is
R
is
·
C
∆tan δ
≤
1%
C
N
≤
1
µF: ≥
10 000 MΩ
C
N
> 1
µF: ≥
10 000 s
≤
1 · 10
–4
U
TT
U
TC
R
is
R
is
·
C
tan
δ
1,25 ·
U
N
, 50 Hz, 10 s (or DC 1,75 ·
U
N
, 10 s)
2 ·
U
i
+ 1000 V, 50 Hz, 10 s
C
N
≤
1
µF: ≥
10 000 MΩ
C
N
> 1
µF: ≥
10 000 s
≤
3 . 10
–4
Siemens Matsushita Components
187
B 25 838
Damping, Commutating
Available ratings
U
N
(V)
C
R
(µF)
0,15
0,22
0,33
0,47
0,68
1,0
2,2
4,7
6,8
10
12
15
18
22
33
47
50
AC 600
900
1100
Data book range
Upon request
188
Siemens Matsushita Components
B 25 838
Damping, Commutating
Characteristics and ordering codes
C
N1)
µF
I
max
A
î
A
I
s
A
R
S
L
self
Dimensions Fig. Appr. Ordering code
20
°C
d
×
l
weight
mΩ
nH
mm
g
û
= 750 V
u
s
= 1000 V
3
2
1
1
1
1
1
90
140
450
1100
1100
1100
1100
Pg.
U
N
= AC 600 V
2,2
4,7
10
15
22
33
47
20
40
80
80
80
80
80
350
880
750 1900
1600 4000
2400 6000
3500 8800
5300 13000
7500 19000
U
i
= AC 530 V
8,0
4,5
2,4
2,2
1,7
1,4
1,1
60
70
90
140
140
140
140
40,0
×
57
40,0
×
95
64,2
×
115
79,2
×
194
79,2
×
194
79,2
×
194
79,2
×
194
U
TT
= AC 750 V, 10 s
U
TC
= AC 2100 V, 10 s
B25838-K4225-K001
192
B25838-K4475-K009
B25838-L4106-K004
194
B25838-L4156-K004
B25838-L4226-K004
B25838-L4336-K004
B25838-L4476-K004
U
N
= AC 900 V
1,0
2,2
4,7
6,8
10
12
15
22
33
20
20
40
80
80
80
80
80
80
280
700
620 1500
1300 3300
1900 4800
2800 7000
3400 8400
4200 10500
6200 15000
9200 23000
U
i
= AC 780 V
9,6
4,9
3,1
2,0
1,9
1,7
1,5
1,2
1,1
60
60
70
90
140
140
140
140
140
40,0
×
57
50,0
×
57
50,0
×
95
64,2
×
115
79,2
×
194
79,2
×
194
79,2
×
194
79,2
×
194
89,3
×
194
û
= 1100 V
u
s
= 1500 V
3
3
2
1
1
1
1
1
1
90
130
220
450
1100
1100
1100
1100
1500
U
TT
= AC 1150 V, 10 s
U
TC
= AC 2600 V, 10 s
B25838-K6105-K001
B25838-K6225-K001
B25838-K6475-K009
196
B25838-L6685-K004
B25838-L6106-K004
B25838-L6126-K004
B25838-L6156-K004
B25838-L6226-K004
198
B25838-L6336-K004
U
N
= AC 1100 V
1,0
2,2
4,7
10
12
15
18
22
20
20
80
80
80
80
80
80
600
1300
2800
6000
7200
9000
11000
13000
U
i
= AC 990 V
1500 13,0
3300 6,5
7000 3,5
15000 2,1
18000 2,0
23000 1,7
27000 1,5
33000 1,4
90
70
170
170
170
170
170
170
40,0
×
95
50,0
×
95
64,2
×
194
79,2
×
194
89,3
×
194
89,3
×
194
89,3
×
194
89,3
×
194
û
= 1400 V
u
s
= 1900 V
3
3
1
1
1
1
1
1
140
220
750
1100
1500
1500
1500
1500
U
TT
= AC 1400 V, 10 s
U
TC
= AC 3000 V, 10 s
B25838-K8105-K001
200
B25838-K8225-K001
B25838-L8475-K004
202
B25838-L8106-K004
B25838-L8126-K004
B25838-L8156-K004
204
B25838-L8186-K004
B25838-L8226-K004
1) Capacitance tolerance
±
10 %
Siemens Matsushita Components
189
B 25 838
Damping, Commutating
Dimensional drawing 1
Screw terminals M10
M10
24,5
_
2
Dimensional drawing 2
Dual tab connectors 6,3 mm
k
Hex nut
M10 ISO 4035
Washer
10,5 DIN 433
57
_
3
l
1
Tab connector
A 6,3 x 0,8
DIN 46 244
~4
l
l
1
ød
1
16+1
M12
d
l
2
l
9 min.
21±1
d
KLK1441-B
13 min.
35
KLK1440-3
Dimensions in mm
Dimensions in mm
Clear-
ance
13
13
13
13
d
–1,2
I
–4
∅
d
1
–0,4
I
1 min
Creepage
distance
k
64,2 115 60,2
78 20
64,2 194 60,2
150 20
79,2 194 75,2
150 20
89,3 194 85,2
150 20
Max. torque terminals*)
7 Nm
d
+0,5
–0,2
40
50
I
+1
–2
95
95
l
1 max
l
2
+1**) Creepage
distance
28
8
10
32
12
14
Clear-
ance
9
9
**) 8 mm = threaded bolt M8
12 mm = threaded bolt M12
*) The terminal torque must not act upon the ceramic. So the lead should be locked between two nuts.
Mounting parts
(included in delivery)
Threaded bolt
M8
M12
Max. torque
4 Nm
10 Nm
Toothed washer
J 8,2 DIN 6797
J 12,5 DIN 6797
Hex nut
M 8 ISO 4035
M12 ISO 4035
190
Siemens Matsushita Components
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