R-Series Capacitors Superior Performance

CDE’s R-Series is a unique family of capacitor products that exhibits superior performance with high current and high-frequency applications. By utilizing low inductance internal constructions, optional molded resin cases, and customized terminations, R-Series capacitors are designed for fast switching IGBTSs and can serve as snubbers and high current high-frequency input filters.

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

Unique features of the R-Series capacitor include:

IGBT direct-mount option – With high current robust terminals spaced to match IGBT centers, CDE’s R-Series capacitors can directly mount onto input connections on IGBTs.
Low inductance packages – With the R-Series capacitors’ dry resin-filled construction, some unique internal laminated low impedance bus bar, and terminal construction produce extremely low inductance values.
High heat dissipation package – The R-Series capacitors can also utilize a resin mold package, combined with copper terminals to provide the best thermal heat dissipation systems available.

Snubber capacitors

High current DC input filters
High-frequency DC input filters
Low inductance fast reactive clamp capacitors

R-Series Capacitors Product Information and Specifications

The R-Series provides a wide range of package styles and specifications. For applications demanding unique sizes and low inductance while providing high RMS currents, the R-Series product utilizes a variety of film systems to fit many applications. Polypropylene/foil, metalized polypropylene, and polypropylene hybrids are utilized.

General Specifications

Capacitance Tolerance	+/- 10
Voltages	DC rating continuous steady-state condition DC pk pulse duty, 0-100 % reversal AC RMS voltages from 10 Hz – 500 kHz
Current / Temp Ratings	+55 ºC max ambient temperature
Operating Temperature	ripple RMS current @ 55 ºC ambient peak current @ 40 ºC ambient
Encapsulation	UL 94V-0 thermosetting resin

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