Film Capacitors
Metallized Polyester Film Capacitors (MKT)
Series/Type:
Date:
B32237
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.
Metallized polyester film capacitors (MKT)
High voltage (wound)
B32237
Typical applications
Test and measurement equipment
Laser, ultrasonic, X-ray, microwave
Climatic
Max. operating temperature: 85
°C
Climatic category (IEC 60068-1): 40/085/21
Construction
Dielectric: polyethylene terephthalate
(polyester, PET)
Cylindrical winding
In tubular plastic case
Face ends sealed with epoxy resin
Terminals
Central axial wire leads, lead-free tinned
Marking
Manufacturer's logo,
style (MKT), series number,
rated capacitance (coded),
capacitance tolerance (code letter),
rated DC voltage, date of manufacture (coded)
Delivery mode
Bulk (untaped)
Dimensional drawing
Dimensions in mm
When bending leads take care to leave a
clearance of 1 mm to the capacitor body.
2
B32237
High voltage (wound)
Overview of available types
Type
V
R
(VDC)
V
rms
(VAC)
C
R
(nF)
0.68
1.0
2.5
5.0
10
25
B32237
1000
200
1600
200
2500
200
4000
450
6300
450
8000
450
10000
450
12500
450
3
B32237
High voltage (wound)
Ordering codes and packing units
V
R
VDC
1000
1600
2500
V
rms
C
R
f
≤60
Hz
VAC
nF
200
200
200
25
5.0
10
2.5
5.0
10
25
1.0
2.5
5.0
10
1.0
2.5
5.0
10
1.0
2.5
5.0
10
1.0
2.5
5.0
0.68
1.0
2.5
Max. dimensions
d
×
l
mm
11.5
×
24.0
7.5
×
24.0
10.5
×
24.0
8.5
×
33.0
9.5
×
33.0
10.5
×
33.0
16.5
×
33.0
7.5
×
33.0
8.5
×
33.0
10.5
×
33.0
12.5
×
33.0
8.5
×
33.0
10.5
×
33.0
10.5
×
45.0
13.5
×
45.0
8.5
×
45.0
10.5
×
45.0
12.5
×
45.0
16.5
×
45.0
8.5
×
56.0
11.5
×
56.0
13.5
×
56.0
9.5
×
56.0
9.5
×
56.0
12.5
×
56.0
Ordering code
(composition see
below)
B32237A0253M000
B32237A1502M000
B32237A1103M000
B32237J2252M000
B32237J2502M000
B32237B2103M000
B32237J2253M000
B32237A4102M000
B32237J4252M000
B32237J4502M000
B32237B4103M000
B32237B6102M000
B32237B6252M000
B32237B6502M000
B32237B6103M000
B32237A8102M000
B32237B8252M000
B32237A8502M000
B32237J8103M000
B32237A9102M000
B32237A9252M000
B32237A9502M000
B32237A3681M000
B32237A3102M000
B32237A3252M000
Untaped
pcs./unit
50
100
100
100
100
100
50
100
100
100
50
100
100
100
50
100
100
50
50
100
50
50
100
100
50
4000
450
6300
450
8000
450
10000
450
12500
450
Further E series and intermediate capacitance values on request.
Composition of ordering code
Capacitance tolerance code: M =
±20%
4
B32237
High voltage (wound)
Technical data
Max. operating temperature T
op,max
Upper category temperature T
max
Lower category temperature T
min
Rated temperature T
R
-3
Dissipation factor tan
δ
(in 10 ) at 1 kHz: 8 10
-3
at 20
°C
at 10 kHz: 15 10
-3
(upper limit values)
Insulation resistance R
ins
30 000 MΩ
at 20
°C,
rel. humidity
≤
65%
(minimum as-delivered values)
DC test voltage
1.2 V
R
, 2 s
T
A
(°C)
DC voltage derating
Category voltage V
C
(continuous operation with V
DC
T
A
≤
70
V
C
= V
R
or V
AC
at f
≤
60 Hz)
70 <T
A
≤85
V
C
= V
R
0.55
Damp heat test
21 days/40
°C/93%
relative humidity
Limit values after damp
Capacitance change
∆C/C
heat test
Dissipation factor change
∆
tan
δ
Insulation resistance R
ins
Reliability:
Failure rate
λ
Service life t
SL
Operating temperature range
+85
°C
+85
°C
40
°C
+85
°C
AC voltage derating
V
C,rms
= V
rms
V
C,rms
= V
rms
0.70
≤
5%
≤
3 10
-3
(at 1 kHz)
≤
5 10
-3
(at 10 kHz)
≥
20% of minimum
as-delivered values
10 fit (≤ 10 10
-9
/h) at 0.5 V
R
, 40
°C
200 000 h at 1.0 V
R
, 40
°C
For conversion to other operating conditions and temperatures,
refer to chapter "Quality assurance", page .
Short circuit or open circuit
Capacitance change
∆C/C
Dissipation factor tan
δ
Insulation resistance R
ins
Failure criteria:
Total failure
Failure due to variation
of parameters
> 10%
> 2 upper limit value
< 150 MΩ
5
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