MMKP 386
www.vishay.com
Vishay BCcomponents
Revision: 19-Mar-13
7
Document Number: 28163
For technical questions, contact: dc-film@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
CHARACTERISTICS
Insulation resistance as a function of ambient temperature
(typical curve)
Max. allowed component temperature
as a function of ambient temperature
MAXIMUM AC VOLTAGE AS A FUNCTION OF FREQUENCY
10
8
10
6
10
4
T
amb
(°C)
0
6020 80 100
RC (s)
40
ΔT (°C)
T
amb
(°C)
12
10050 8020- 20- 50
8
4
0
0
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
0.33
T
amb
75 °C, 630 V
DC
Capacitance in µF
0.47
1.0
2.7
4.7
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
0.22
T
amb
75 °C, 850 V
DC
Capacitance in µF
0.47
1.0
1.5
2.7
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
Capacitance in µF
0.33
T
amb
75 °C, 1000 V
DC
0.47
0.68
1.0
1.5
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
Capacitance in µF
0.15
T
amb
75 °C, 1250 V
DC
0.22
0.33
0.47
0.82
MMKP 386
www.vishay.com
Vishay BCcomponents
Revision: 19-Mar-13
8
Document Number: 28163
For technical questions, contact: dc-film@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
MAXIMUM AC VOLTAGE AS A FUNCTION OF FREQUENCY
POWER DISSIPATION AND MAXIMUM COMPONENT TEMPERATURE RISE
The power dissipation must be limited in order not to exceed the maximum allowed component temperature rise as a function
of the free air ambient temperature.
The power dissipation can be calculated according type detail specification “HQN-384-0/101: Technical Information Film
Capacitors”.
The component temperature rise (T) can be measured (see section “Measuring the component temperature” for more details)
or calculated by T = P/G:
T = Component temperature rise (°C)
P = Power dissipation of the component (mW)
G = Heat conductivity of the component (mW/°C)
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
0.1
T
amb
75 °C, 1400 V
DC
Capacitance in µF
0.15
0.22
0.47
0.56
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
0.1
T
amb
75 °C, 1600 V
DC
Capacitance in µF
0.15
0.23
0.47
0.56
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
0.1
T
amb
75 °C, 2000 V
DC
Capacitance in µF
0.15
0.22
0.23
0.47
10
3
f (Hz)
10
3
10
5
10
6
10
7
V
RMS
(V)
10
2
10
1
10
4
0.1
T
amb
75 °C, 2500 V
DC
Capacitance in µF
0.15
0.22
0.23
HEAT CONDUCTIVITY (G) AS A FUNCTION OF BOX LENGTH AND CAPACITOR BODY
THICKNESS IN mW/°C
W
max.
(mm)
HEAT CONDUCTIVITY (mW/°C)
BOX LENGTH 33.5 mm BOX LENGTH 44.0 mm
22.0 75 100
30.0 - 140
MMKP 386
www.vishay.com
Vishay BCcomponents
Revision: 19-Mar-13
9
Document Number: 28163
For technical questions, contact: dc-film@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
MEASURING THE COMPONENT TEMPERATURE
A thermocouple must be attached to the capacitor body as in:
The temperature is measured in unloaded (T
amb
) and maximum loaded condition (T
C
).
The temperature rise is given by T = T
C
- T
amb
.
To avoid radiation or convection, the capacitor should be tested in a wind-free box.
APPLICATION NOTE AND LIMITING CONDITIONS
These capacitors are not suitable for mains applications as across-the-line capacitors without additional protection, as
described hereunder. These mains applications are strictly regulated in safety standards and therefore electromagnetic
interference suppression capacitors conforming the standards must be used.
To select the capacitor for a certain application, the following conditions must be checked:
1. The peak voltage (U
P
) shall not be greater than the rated DC voltage (U
RDC
)
2. The peak-to-peak voltage (U
P-P
) shall not be greater than the maximum U
P-P
to avoid the ionization inception level
3. The voltage pulse slope (dU/dt) shall not exceed the rated voltage pulse slope in an RC-circuit at rated voltage and without
ringing. If the pulse voltage is lower than the rated DC voltage, the rated voltage pulse slope may be multiplied by U
RDC
and
divided by the applied voltage.
For all other pulses following equation must be fulfilled:
T is the pulse duration.
The rated voltage pulse slope is valid for ambient temperatures up to 85 °C.
4. The maximum component surface temperature rise must be lower than the limits (see figure).
5. Since in circuits used at voltages over 280 V peak-to-peak the risk for an intrinsically active flammability after a capacitor
breakdown (short circuit) increases, it is recommended that the power to the component is limited to 100 times the values
mentioned in the table: “Heat Conductivity”
VOLTAGE CONDITIONS
ALLOWED VOLTAGES T
amb
85 °C
Maximum continuous RMS voltage U
RAC
Maximum temperature RMS-overvoltage (< 24 h) 1.25 x U
RAC
Maximum peak voltage (V
O-P
) (< 2 s) 1.6 x U
RDC
Thermocouple
2 x
dU
dt
-------


2
x dt U
RDC
x
dU
dt
-------


rated
0
T

BFC238621394

Mfr. #:
Manufacturer:
Vishay / Dale
Description:
Film Capacitors SNUBBER MMKP 390 nF 5% 630Vdc Pitch 27,5mm
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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