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 d10.6 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
VR(VDC) 50 100 160 250 630
Vrms (VAC) 20 35 60 90 200
CR(µF)
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
VR
VDC
Vrms
f≤60 Hz
VAC
CR
µF
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
VR
VDC
Vrms
f≤60 Hz
VAC
CR
µF
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
VR
VDC
Vrms
f≤60 Hz
VAC
CR
µF
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 Top,max +125 °C
Upper category temperature Tmax +100 °C
Lower category temperature Tmin 55 °C
Rated temperature TR+85 °C
Dissipation factor tan δ(in 10-3) CR(µF) ≤0.47 0.47 < CR≤4.7 4.7 < CR≤10.0 > 10.0
at 20 °Cat 1 kHz 7 8 8 10
(upper limit values) at 10 kHz 15 22 25
Insulation resistance Rins CR
or time constant τ= CRRins ≤0.33 µF > 15000 MΩ
at 20 °C, rel. humidity ≤65% > 0.33 µF > 5000 s
(minimum as-delivered values)
DC test voltage 1.4 VR,2s
Category voltage VCTA(°C) DC voltage derating AC voltage derating
(continuous operation with VDC TA≤85 VC= VRVC,rms = Vrms
or VAC atf≤60 Hz) 85<TA≤100 VC= VR(165TA)/80 VC,rms=Vrms (165TA)/80
Operating voltage Vop for TA(°C) DC voltage (max. hours) AC voltage (max. hours)
short operating periods TA≤100 Vop = 1.25 VC(2000 h) Vop = 1.0 VC,rms (2000 h)
(VDC or VAC atf≤60 Hz) 100<TA≤125 Vop = 0.5 VR(1000 h) Vop = 0.5 Vrms (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 δ ≤ 510-3 (at 1 kHz)
Insulation resistance Rins ≥50% of minimum
as-delivered values
Reliability:
Failure rate λ1 fit (≤110-9/h) at 0.5 VR,40°C
Service life tSL 200 000 h at 1.0 VR,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 δ> 1.5 upper limit value
Insulation resistance Rins < 150 MΩ(CR≤0.33 µF)
or time constant τ= CRRins < 50 s (CR> 0.33 µF)
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/µs.
"k0" represents the maximum permissible pulse characteristic of the waveform applied to the
capacitor, expressed in V2/µs.
Note:
The values of dV/dt and k0provided 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
VRVrms
VDC VAC dV/dt in V/µs
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
k0values
Lenght of capacitor 16 mm 20 mm 32.5 mm
VRVrms
VDC VAC k0in V2/µs
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 Vrms 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
