CDE 3-Phase AC Power Harmonic Filter Capacitors

Cornell Dubilier Electronics, Inc. announces availability of its new PFCH capacitor series for 3-phase AC power harmonic filtering. Intended for use on the AC output of large inverter system, Type PFCH are designed to filter undesirable harmonics before power is delivered to the grid or load. Typical applications include but are not limited to automatic power factor correction equipment, wind turbine PFC controllers, solar inverter output filters, tuned and detuned capacitor banks and power line conditioning.

Each PFCH capacitor is made with three self healing metallized polypropylene windings, connected in delta, and enclosed in a cylindrical aluminum case filled with environmentally friendly fluid. Built in bleeder resistors reduce voltage to safe levels when capacitors are taken off line for maintenance. To ensure an open and safe failure mode at end of life, type PFCH capacitors utilize a UL810 tested and approved internal mechanical pressure interrupter that disconnects the capacitor winding from the circuit before pressure exceeds unsafe limits.

Type PFCH ratings range from 0.5 KVAR to 17.5 KVAR at 240 Vac, 0.5 to 30 KVAR at 480 Vac, and 1 KVAR to 25 KVAR at 600 Vac. Standard case sizes range from 2.0 inches to 3.5 inches in diameter with lengths ranging from 5.75 inches to 13.73 inches. Larger case sizes and KVAR ratings are available upon request.

For power factor correction applications not requiring higher harmonic filtering, the company offers Type PFCS with greater KVAR ratings needed to achieve unity power factor correction.

In OEM quantities Type PFCH capacitors are available with pricing from $35. Samples are available in 4–6 weeks, production in 8–10 weeks.

Cornell Dubilier Announces Expansion of Low ESR Aluminum Polymer Capacitor Product Lines

Cornell Dubilier Electronics, Inc. (CDE) announces its product line expansion of types SPCX and SPSX surface mount aluminum polymer capacitors. Both series are now available with lower ESR and higher capacitance values making them among the best performing filter capacitors for board level power conversion applications.

Both types are supplied in a surface mount molded package with the same footprint as a D size tantalum capacitor in a very thin profile of 1.9 mm with voltage values ranging from 2.0 to 6.3 Vdc. Type SPCX is the most economical, general purpose series with capacitance values ranging from 100 µF to 470 µF and ripple current capability up to 3.0 A at 105 °C. Ultra low ESR type SPSX has ESR values as low as 4.5 milliohms, allowing them to handle up 4.0 A of ripple current at 105 °C.

Capacitance values range from 82 µF to 560 µF. The solid polymer SPSX aluminum capacitor is an ideal choice for audio/visual equipment, home appliances, computers, measuring equipment and industrial robots. Like the SPCX, the SPSX is a compact component. But SPSX off ers a much lower ESR and a higher ripple current rating than the SPCX. The SPSXis a green product and RoHS compliant.

The solid polymer SPCX aluminum capacitor is an ideal choice for general purpose applications in audio-visual equipment, home appliances, computers, office equipment, optical and measuring equipment and industrial robots. The SPCX is a very cost effective capacitor in a compact low-profile package that is offered on tape and reel. The SPCX is environmentally green and RoHS compliant.