Low-inductance, high-current DC link film capacitors for power applications introduced by Cornell Dubilier
LIBERTY, S.C. – Cornell Dubilier Electronics Inc. in Liberty, S.C., is introducing the 944L series of low-inductance, high-current DC link film capacitors for applications in green energy inverters and Level 3 electric vehicle chargers.
The series makes use of large diameter, non-inductive windings with low-inductance internal buss connections, yielding equivalent series inductance (ESL) values ranging from 10 to 15 nano henries. Ripple current ratings of up to 90 amperes at an ambient temperature of 55 °C are achieved by using low-loss polypropylene dielectric with metalized electrodes optimized for applications in fast-switching power inverters.
944L series capacitors are available in values ranging from 33 to 220 microfarads, with voltage ratings of 800, 1000, 1200, and 1400 volts DC. The series meets a 5,000-hour life test at 85 degrees Celsius with rated voltage applied, yielding a lifetime of 100,000 hours or greater with ripple current or ambient temperature derating.
The capacitors are contained in a UL94V-0-rated plastic case with integral mounting flanges for secure, vibration-resistant installation. All case sizes have an 84.5-millimeter diameter with heights of 40, 51, and 64 millimeters, depending upon rating. Standard termination options include M8 threaded studs or M5 threaded inserts made of tin-plated brass.
For more information contact Cornell Dubilier online at www.cde.com.
