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Type 947C Power Film Capacitors

Cornell Dubilier Electronics and Digi-Key introduce Power Film Capacitors for Next Generation Inverter Designs

Cornell Dubilier Electronics 947C Capacitors
DC Link capacitors provide bulk energy storage and ripple filtering for inverter applications. Many inverters are designed with excess aluminum electrolytic capacitors across the bus in order to handle the ripple current. Type 947C Power Film capacitors have higher voltage and current ratings allowing them to replace complex series-parallel combinations of aluminum capacitors. The 947C series capacitors are ideally suited as DC Link capacitors for wind, solar and fuel cell inverters.

Type 947C series from Cornell Dubilier Electronics uses the most advanced metalized film technology for long life, high reliability in DC link applications. Their high-voltage and high-current ratings allow for replacement of series-parallel banks of aluminum electrolytic capacitors in high ripple current applications.

  • Advantages & Applications
  • Specifications
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Advantages & Applications
Advantages
  • Voltages exceeding 1200 Vdc eliminates the need for complex series/parallel connections
  • 1/3 the cost per amp of ripple
  • Dry construction, no electrolyte
 Applications
  • Industrial: welders, motor drives, elevators, and overhead cranes
  • Inverters: >5kW
  • Renewable energy inverters: wind, solar, fuel cell
  • Aircraft inverters: power supplies and motor drives
  • Transportation: electric vehicles, traction
RoHS Compliant
Specifications
Rating Type 947C Datasheet
Capacitance range 160 µF to 730 µF
Tolerance ±10%
Rated voltage 800 Vdc, 1000 Vdc, 1200 Vdc
Operating temperature range with ripple –40°C to +85°C
Maximum rms current 60 A @ +55°C
Maximum rms voltage <230 Vac
Test voltage between terminals @ 25°C 150% rated DC voltage for 10 s
Test voltage between terminals and case @ 25°C 4 kVac @ 50/60 Hz for 1 min
Life test 5000 h @ +85°C, rated voltage
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Digi-Key P/N Vendor P/N Capacitance Voltage Description
338-1398-ND 947C361K801CAMS 360µF 800V CAP FILM 360UF 800V POST TERM
338-1401-ND 947C491K801CBMS 490µF 800V CAP FILM 490UF 800V POST TERM
338-1402-ND 947C601K801CCMS 600µF 800V CAP FILM 600UF 800V POST TERM
338-1403-ND 947C731K801CDMS 730µF 800V CAP FILM 730UF 800V POST TERM
338-1394-ND 947C231K102CAMS 230µF 1000V CAP FILM 230UF 1000V POST TERM
338-1396-ND 947C311K102CBMS 310µF 1000V CAP FILM 310UF 1000V POST TERM
338-1399-ND 947C391K102CCMS 390µF 1000V CAP FILM 390UF 1000V POST TERM
338-1400-ND 947C471K102CDMS 470µF 1000V CAP FILM 470UF 1000V POST TERM
338-1392-ND 947C161K122CAMS 160µF 1200V CAP FILM 160UF 1200V POST TERM
338-1393-ND 947C211K122CBMS 210µF 1200V CAP FILM 210UF 1200V POST TERM
338-1395-ND 947C271K122CCMS 270µF 1200V CAP FILM 270UF 1200V POST TERM
338-1397-ND 947C321K122CDMS 320µF 1200V CAP FILM 320UF 1200V POST TERM