Film Capacitors
Metallized Polyester Film Capacitors (MKT-S)
Series/Type:
B32538
Date:
August 2004
EPCOS AG 2004. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical
and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Associ-
ation), unless otherwise agreed.
Typical applications
Test and measurement equipment
Rough environments
Climatic
Max. operating temperature: 125
C
Climatic category (IEC 60068-1): 55/100/56
Features
Optimum self-healing capability
Excellent short circuit protection
Very high reliability
Construction
Dielectric: polyethylene terephthalate
(polyester, PET)
Construction with structured metallization
Tubular winding
Insulating sleeve
Face ends sealed with epoxy resin
Terminals
Central axial leads, lead-free tinned
Marking
Manufacturer's logo,
style(MKT-S), rated capacitance (coded),
capacitance tolerance (code letter),
rated voltage, date of manufacture (coded)
Delivery mode
Bulk (untaped)
Taped (Ammo pack)
For notes on taping, refer to chapter "Taping and packing".
Dimensional drawing
Dimensions in mm
Diameter d
<7.8
7.8 ... 16
>16
Lead diameter d
1
0.6
0.8
1.0
When bending leads take care to leave a
clearance of 1 mm to the capacitor body.
Metallized polyester film capacitors (MKT-S)
B32538
High reliability (wound)
2
Overview of types
Type
B32538
V
R
(VDC)
50
100
160
250
630
V
rms
(VAC)
20
35
60
90
200
C
R
(
F)
0.033
0.047
0.068
0.10
0.15
0.22
0.33
0.47
0.68
1.0
1.5
2.2
3.3
4.7
6.8
10
22
47
100
B32538
High reliability (wound)
3
Ordering codes and packing units
V
R
VDC
V
rms
f
60 Hz
VAC
C
R
F
Max. dimensions
d
l
mm
Ordering code
(composition see
below)
Ammo pack
pcs./unit
Untaped
pcs./unit
Further E series and intermediate capacitance values on request.
Composition of ordering code
+ =
Capacitance tolerance code:
*** = Packaging code:
M =
20%
K =
10%
007 = Ammo pack
000 = Untaped
50
20
0.47
6.1
16.0
B32538B5474+***
1100
50
0.68
6.3
16.0
B32538B5684+***
1000
50
1.0
6.9
16.0
B32538B5105+***
950
50
1.5
7.6
16.0
B32538B5155+***
870
50
2.2
7.4
20.0
B32538B5225+***
900
50
3.3
8.2
20.0
B32538B5335+***
800
50
4.7
9.3
20.0
B32538B5475+***
700
20
6.8
10.8
20.0
B32538B5685+***
400
20
10
12.6
20.0
B32538B5106+***
350
20
100
35
0.10
6.2
16.0
B32538B1104+***
1000
50
0.15
6.4
16.0
B32538B1154+***
1000
50
0.22
6.9
16.0
B32538B1224+***
950
50
0.33
7.0
16.0
B32538B1334+***
950
50
0.47
6.7
16.0
B32538B1474+***
950
50
0.68
6.7
16.0
B32538B1684+***
950
50
1.0
6.7
20.0
B32538B1105+***
950
50
1.5
7.4
20.0
B32538B1155+***
900
50
2.2
8.0
20.0
B32538B1225+***
800
50
3.3
9.2
20.0
B32538B1335+***
700
20
4.7
10.4
20.0
B32538B1475+***
400
20
6.8
9.0
32.5
B32538B1685+***
700
20
10
10.7
32.5
B32538B1106+***
400
20
22
14.6
32.5
B32538B1226+***
PU on request 20
47
20.2
32.5
B32538B1476+***
PU on request 20
100
28.2
32.5
B32538B1107+***
PU on request 20
B32538
High Reliability (Wound)
4
Ordering codes and packing units
V
R
VDC
V
rms
f
60 Hz
VAC
C
R
F
Max. dimensions
d
l
mm
Ordering code
(composition see
below)
Ammo pack
pcs./unit
Untaped
pcs./unit
Further E series and intermediate capacitance values on request.
Composition of ordering code
+ =
Capacitance tolerance code:
*** = Packaging code:
M =
20%
K =
10%
007 = Ammo pack
000 = Untaped
160
60
0.10
6.1
16.0
B32538B2104+***
1100
50
0.15
6.2
16.0
B32538B2154+***
1000
50
0.22
6.4
16.0
B32538B2224+***
1000
50
0.33
7.0
16.0
B32538B2334+***
950
50
0.47
6.9
20.0
B32538B2474+***
950
50
0.68
7.5
20.0
B32538B2684+***
870
50
1.0
8.3
20.0
B32538B2105+***
800
50
1.5
10.5
20.0
B32538B2155+***
400
20
2.2
11.0
20.0
B32538B2225+***
400
20
3.3
10.0
32.5
B32538B2335+***
450
20
4.7
11.3
32.5
B32538B2475+***
380
20
6.8
13.1
32.5
B32538B2685+***
PU on request 20
10
15.3
32.5
B32538B2106+***
PU on request 20
250
90
0.10
6.7
16.0
B32538B3104+***
950
50
0.15
7.2
16.0
B32538B3154+***
900
50
0.22
7.3
16.0
B32538B3224+***
900
50
0.33
7.3
20.0
B32538B3334+***
900
50
0.47
8.0
20.0
B32538B3474+***
800
50
0.68
9.0
20.0
B32538B3684+***
700
20
1.0
10.3
20.0
B32538B3105+***
400
20
1.5
12.0
20.0
B32538B3155+***
380
20
2.2
14.0
20.0
B32538B3225+***
300
20
3.3
12.6
32.5
B32538B3335+***
350
20
4.7
14.5
32.5
B32538B3475+***
PU on request 20
6.8
17.0
32.5
B32538B3685+***
PU on request 20
10
20.1
32.5
B32538B3106+000
20
B32538
High Reliability (Wound)
5
Ordering codes and packing units
V
R
VDC
V
rms
f
60 Hz
VAC
C
R
F
Max. dimensions
d
l
mm
Ordering code
(composition see
below)
Ammo pack
pcs./unit
Untaped
pcs./unit
Further E series and intermediate capacitance values on request.
Composition of ordering code
+ =
Capacitance tolerance code:
*** = Packaging code:
M =
20%
K =
10%
007 = Ammo pack
000 = Untaped
630
200
0.033
6.7
16.0
B32538B8333+***
950
50
0.047
7.3
16.0
B32538B8473+***
900
50
0.068
7.2
20.0
B32538B8683+***
900
50
0.10
7.9
20.0
B32538B8104+***
800
50
0.15
9.0
20.0
B32538B8154+***
700
20
0.22
10.5
20.0
B32538B8224+***
400
20
0.33
12.0
20.0
B32538B8334+***
380
20
0.47
13.9
20.0
B32538B8474+***
300
20
0.68
12.3
32.5
B32538B8684+***
350
20
1.0
14.3
32.5
B32538B8105+***
PU on request 20
1.5
17.0
32.5
B32538B8155+***
PU on request 20
2.2
20.0
32.5
B32538B8225+000
20
3.3
23.9
32.5
B32538B8335+000
20
4.7
28.1
32.5
B32538B8475+000
20
B32538
High Reliability (Wound)
6
Technical data
Operating temperature range
Max. operating temperature T
op,max
+125
C
Upper category temperature T
max
+100
C
Lower category temperature T
min
55
C
Rated temperature T
R
+85
C
Dissipation factor tan
(in 10
-3
) C
R
(
F)
0.47
0.47 < C
R
4.7 4.7 < C
R
10.0 > 10.0
at 20
C
at
1 kHz
7
8
8
10
(upper limit values)
at
10 kHz
15
22
25
Insulation resistance R
ins
C
R
or time constant
= C
R
R
ins
0.33
F
> 15000 M
at 20
C, rel. humidity
65%
> 0.33
F
> 5000 s
(minimum as-delivered values)
DC test voltage
1.4
V
R
, 2 s
Category voltage V
C
T
A
(
C)
DC voltage derating
AC voltage derating
(continuous operation with V
DC
T
A
85
V
C
= V
R
V
C,rms
= V
rms
or V
AC
at f
60 Hz)
85<T
A
100
V
C
= V
R
(165 T
A
)/80
V
C,rms
=V
rms
(165 T
A
)/80
Operating voltage V
op
for
T
A
(
C)
DC voltage (max. hours) AC voltage (max. hours)
short operating periods
T
A
100
V
op
= 1.25
V
C
(2000 h) V
op
= 1.0
V
C,rms
(2000 h)
(V
DC
or V
AC
at f
60 Hz)
100<T
A
125 V
op
= 0.5
V
R
(1000 h)
V
op
= 0.5
V
rms
(1000 h)
Damp heat test
56 days/40
C/93% relative humidity
Limit values after damp
Capacitance change
C/C
5%
heat test
Dissipation factor change
tan
5
10
-3
(at 1 kHz)
Insulation resistance R
ins
50% of minimum
as-delivered values
Reliability:
Failure rate
1 fit (
1
10
-9
/h) at 0.5
V
R
, 40
C
Service life t
SL
200 000 h at 1.0
V
R
, 40
C
For conversion to other operating conditions and temperatures,
refer to chapter "Quality assurance", page .
Failure criteria:
Total failure
Short circuit or open circuit
Failure due to variation
Capacitance change
C/C
> 10%
of parameters
Dissipation factor tan
> 1.5
upper limit value
Insulation resistance R
ins
< 150 M
(C
R
0.33
F)
or time constant
= C
R
R
ins
< 50 s
(C
R
> 0.33
F)
B32538
High reliability (wound)
7
Pulse handling capability
"dV/dt" represents the maximum permissible voltage change per unit of time for non-sinusoidal
voltages, expressed in V/
s.
"k
0
" represents the maximum permissible pulse characteristic of the waveform applied to the
capacitor, expressed in V
2
/
s.
Note:
The values of dV/dt and k
0
provided below must not be exceeded in order to avoid damaging the
capacitor.
dV/dt values
Lenght of capacitor
16 mm
20 mm
32.5 mm
V
R
V
rms
VDC
VAC
dV/dt in V/
s
50
20
2.5
1.5
100
35
13
9
6
160
60
20
12
8
250
90
23
16
10
630
200
40
26
18
k
0
values
Lenght of capacitor
16 mm
20 mm
32.5 mm
V
R
V
rms
VDC
VAC
k
0
in V
2
/
s
50
20
250
150
100
35
2 600
1 800
1 200
160
60
6 400
3 840
2 560
250
90
11 500
8 000
5 000
630
200
50 400
32 800
22 700
B32538
High reliability (wound)
8
Impedance Z versus frequency f
(typical values)
Permissible AC voltage V
rms
versus frequency f
Values can be obtained on request. In specific cases please provide a scaled voltage/ time graph
and state operating conditions.
B32538
High reliability (wound)
9
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