Illinois Capacitor (Cornell Dubilier)

Appliances, Electrical, and Electronics ManufacturingIllinois, United States11-50 Employees

Illinois Capacitor, now a brand of Cornell Dubilier Electronics, offers a broad range of capacitors including aluminum electrolytic, polymer, metalized film, and power film types, along with supercapacitors for broader applications. These components serve electronics manufacturers seeking high-performance energy storage and signal-conditioning solutions across a wide array of devices, with growth observed in wireless communications, electronic power technology, energy management, IGBT, and renewable power markets. The company traces its history to more than 75 years of operation and holds important patents in electrolytic capacitor technology, with a product portfolio that includes high-temperature and specialized formats for direct-mount, surface-mount, and film applications. Based in Des Plaines, Illinois, the brand operates within the appliances, electrical and electronics manufacturing sector and is positioned as a recognized player in capacitors under the Cornell Dubilier umbrella. The business focuses on close collaboration with customers and suppliers to deliver components aligned with the needs of high-performance end products. In 2023, Cornell Dubilier Electronics launched several series of EMI/RFI suppression capacitors designed for harsh environments, illustrating ongoing product development.

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