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959A Series - Metallized Polypropylene Caps

DC Link Capacitor Product Data Sheets

Metallized Polypropylene DC Link Capacitors

The Electrocube 959A series is a rugged non-inductively wound metallized polypropylene DC link capacitor. It is ideal for high current power inverter applications which require long life under extreme operating conditions such as EV power conversion, aircraft power systems, battery chargers and other high pulse applications. The 959A series is an excellent replacement for electrolytic capacitors and is manufactured in a high impact polymer case for insulation and durability.

Typical Dielectric Characteristic Curves

Electrocube 959A High Current DC Link Cap Typical Dielectric Characteristic Curves
Available in threaded insert or terminal studs
Available in threaded insert or terminal studs
  • Extended electrode construction
  • Tolerances available to ±5%
  • Polymer case & dry construction
  • Epoxy Resin fills meet or exceed flammability requirements of UL94V0
  • Compliance and certification to worldwide and other environmental standards available upon request; RoHS compliant
  • May be used for frequencies up to 100 KHz
  • Customizable insulating sleeves, mountings, special terminals, non-standard leads, circuit connections and other hardware
  • Assorted styles, ratings and customization for unusual requirements necessitated by special circuit applications [including higher IR or lower DF]


Temperature range

  • -55°C to +85°C at rated voltage

Dielectric voltage test

  • Will withstand 150% of DC rated voltage for a period not to exceed 1 minute at temperature of 20°C terminal to terminal
  • Current limited to 5 mA
  • Will withstand 3 KVAC 50/60 Hz terminal to case at 20°C for 10 seconds

DC life test

  • Will withstand 140% of DC rated voltage at 85°C for 250 hours with not more than 1 failure in 12 permitted
  • Current limited to 5 mA
  • Additional life test details available

Life expectancy

  • 100,000 hours at rated voltage and 70°C

Dissipation factor

  • Will not exceed 0.3% at 20°C and 120 Hz

Dielectric absorption

  • Will not exceed 0.02% at 20°C per MIL-C-19978

Acceptance criteria

  • Measurement frequency for capacitance and dissipation factor will be 120 Hz
Electrocube 959A High Current DC Link Cap Drawing and Schematic Electrocube 959A High Current DC Link Cap Terminal Information Table Electrocube 959A High Current DC Link Cap Voltage Table 600 to 1100 Electrocube 959A High Current DC Link Cap Voltage Table 1200 to 4000
Capacitor selection is extremely important to achieve the best voltage and current-carrying capability for DC link capacitors. Find out how to select DC Link Capacitor.
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