MKP1848 Vishay Siliconix, MKP1848 Datasheet - Page 11

• Manufacturer Part Number: MKP1848
• Description: Metallized Polypropylene Film Capacitors DC Capacitor MKP Type
• Manufacturer: Vishay Siliconix

APPLICATION NOTE AND LIMITING CONDITIONS
These capacitors are not suitable for mains applications as across-the-line capacitors without additional protection. 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
2. The peak-to-peak ripple voltage (U
3. The voltage peak slope (dU/dt) shall not exceed the pulse slope at the DC voltage rating.
4. The maximum component surface temperature rise must be lower than 15 °C.
MAXIMUM REPETITIVE PEAK VOLTAGES
The capacitor unit may be subjected to the following surge without any significant reduction of lifetime expectancy
Document Number: 28164
Revision: 02-Feb-09
REPETITIVE SURGE VOLTAGE
1.1 x U
1.15 x U
1.2 x U
1.3 x U
1.5 x U
If the pulse voltage is lower than the rated DC voltage, the rated voltage pulse slope may be multiplied by U
by the applied voltage.
For all other pulses following equation must be fulfilled:
T is the pulse duration
Non reversing recurrent waveform
2
×
Ndc
Ndc
Ndc
Ndc
T
∫
0
Ndc
⎛
⎝
dU
------- -
dt
⎞
⎠
2
×
dt U
<
Ndc
P+
) shall not be greater than the rated DC voltage (U
×
⎛
⎝
dU
------- -
dt
t
⎞
⎠
rated
Metallized Polypropylene Film Capacitors
P-P
) shall not be greater than 0.1 x (U
For technical questions, contact: [e-mail]
U
U
DC Capacitor MKP Type
p+
p-
U
Ndc
Ndc
Ndc
)
)
MAXIMUM DURATION PER DAY
30 % on load duration
MKP 1848 DC-Link
110 ms
30 min
5 min
1 min
Vishay Roederstein
www.DataSheet4U.com
Ndc
www.vishay.com
and divided
291