menu icon
Knowles CDE Logo

EC-Series Metalized Polypropylene DC-link Film Capacitors

CDE’s EC-Series metalized polypropylene DC-link film capacitors offer large capacitance values, high Joule energy, and large current ratings in a single welded metal package. This dry resin-filled package can have a variety of low inductance terminal options, and brackets for mounting, and can also incorporate additional metal structures to accommodate additional components such as resistors, chill plates, etc.

EC-Series capacitors are well suited for many inverter applications including:

Unique features of the EC-Series capacitor include:

  • Large Capacitance values at high voltages – By utilizing fabricated welded metal packages, CDE can incorporate large capacitance values with higher voltage ratings.
  • Rugged metal cases – Welded metal cans fabricated from alum, brass, steel, and stainless steel are provided for rugged packages up to 500 lbs.
  • Inverter design flexibility With an already fabricated metal package, CDE can fasten onto the metal container's unique brackets to accommodate a variety of functionality.
  • DC input / output filtering
  • DC Link
  • AC harmonic filtering
  • High energy storage pulse
  • Traction drives and heavy vehicles

EC-Series Capacitors Product Information and Specifications

General Specifications

Reference standardIEC 61071, UL 508C, IEC 1071-1
Capacitance Tolerance+/- 10%
VoltagesDC rating continuous steady state condition
DC pk pulse duty, 10-100 % reversal
AC RMS from 10 Hz to 50 kHz
Test T-T @ 1.5 VDC, 10 seconds
Test T-C @ 2.0Vpk dc + 1000 V, 10 seconds
Current / Temp Ratingsripple RMS current @ 55 ºC ambient
peak current @ 40 ºC ambient
ESRas low as 0.15 ohm
Inductanceas low as 5-10 nH ranges if required
Operating Temperature-40 ºC to +85 ºC (-50 to +110 ºC available)
EncapsulationUL 94V-0 thermosetting resin

Technical Information

Metallized Polypropylene Film Energy Storage Capacitors for Low Pulse Duty

High Crystalline Segmented Polypropylene Capacitors Offer Increased Energy Density

Quick Reference

Capacitance: 10 to 50,000 uF

Voltage (DC): 400 to 15,000 VDC

Voltage (AC): 10 to 1000 VAC

Current (RMS): 5 to 500 amps

Current (Peak): 5 to 50,000 amp

    Photo Gallery

    EC-Series Mounting Variety
    EC-Series DC Input
    EC-Series Multiple Terminals
    EC-Series 3 Phase
    EC-Series Stainless Steel Brackets
    EC-Series Elevated Case
    EC-Series 0.25×20 threads
    EC-Series Capacitors Family
    EC-Series IGBT Mounts

    Contact Us

    CD Snow Hill, LLC

    204 Carolina Drive
    Snow Hill, NC 28580

    Call: (252) 747-5943