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MKP DC link high density series of film capacitors from Epcos/TDK have new rated voltages
Two new types of film capacitors with rated voltages of 575 V DC and 900 V DC have been added to the B32774* to B32778* series. These MKP DC link film capacitors of the high density series are widely used for DC link and DC filtering functions in power converters.
The new voltages provide additional flexibility to circuit designers. The specifications can now be met more accurately with the smallest possible component and reduced cost without sacrificing reliability.
Technical data
- MKP winding technology, self-healing
- Lead spacing 27.5 mm to 52.5 mm for PCB mounting
- 2 or 4 pin designs for enhanced mechanical stability
- Rated voltages (at 70 ºC): 450, 575 (new), 800, 900 (new), 1100, 1300 V DC
- Capacitance range: 1.5 μF to 110 μF
- Maximum operating temperature (case): 105 °C
- Low ESR: ≥3.0 mΩ at 70 °C and 10 kHz
- IRMS: up to 20 A at 70°C and 10 kHz
General benefits of film capacitors
- Self-healing, offering high stability with respect to peaks and overvoltages
- Operating life 200,000 hours
- High capacitance stability over time and temperature
- High IRMS and peak current per μF
- No need of reverse current protection, balance resistors and serial connections
- Higher resonant frequency: film capacitors can be used in parallel with an aluminum electrolytic capacitor bank to filter high frequency harmonics
Typical applications
- The MKP film capacitors are suitable for use in DC links, DC filters and power factor correction in converters and power supplies, including:
- Small and medium sized converters in industrial applications
- Frequency converters, for example, for drives and welding equipment
- Photovoltaic converters (input filter, DC-DC circuit or DC link)
- Heavy-duty power supplies for applications such as x-ray equipment, LED street lighting, induction cooktops, or charging devices
Data sheets are available online at www.epcos.com/film_mkp.
For more information, or details on the full range of EPCOS products available from Anglia, please email info@anglia.com
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This news article was originally published in October 2012.
