Illinois Capacitor / Cornell Dubilier Industrial Capacitors & Supercapacitor Modules

Illinois Capacitor / Cornell Dubilier industrial capacitors and energy storage platforms: high-voltage 3-cell radial supercapacitors, DC-link film capacitors, and aluminum electrolytics.

DGH and DSF Series 3-Cell Radial Supercapacitors

Illinois Capacitor / Cornell Dubilier DGH and DSF supercapacitors provide working voltages up to 9.0 WVDC and capacitance up to 5 F in a 3-cell footprint. Internal cell balancing optimizes performance while low ESR enables rapid discharge. Operating endurance exceeds 500,000 cycles.

Working voltage ratings up to 9.0 WVDC in a compact 3-cell radial PCB footprint
Capacitance range spanning 0.33 to 5 Farads with scalable series banking options
Integrated internal cell balancing circuit eliminating external resistive dividers
Ultra-low ESR power delivery rated for more than 500,000 charge and discharge cycles

Supercapacitor Modules and Energy Storage Packs

Illinois Capacitor / Cornell Dubilier supercapacitor modules provide energy storage for pulse power and UPS backup. Modules integrate balancing circuitry and overvoltage protection. Applications include automated guided vehicles, wind pitch actuators, and industrial energy storage.

Standard and custom voltage platforms from 5.5V to 48V and higher for heavy loads
Integrated passive or active cell balancing management and thermal monitoring
High power density engineered for rapid pulse discharge in UPS and drive systems
Resistant to deep discharges across wide operating temperatures from -40 to +65 C

Aluminum Electrolytic Capacitors CKS, LGL and CGH

Illinois Capacitor / Cornell Dubilier aluminum electrolytic capacitors feature radial, snap-in, and screw terminals. CKS, LGL, and CGH series withstand high ripple currents and temperatures to 105 C. They serve industrial inverters, motor drives, and switching power converters.

Radial, axial, snap-in, and heavy-duty screw terminal PCB and busbar mountings
Rated voltage ratings up to 500 VDC with high capacitance options in CGH series
High ripple current capability and low impedance across high operating frequencies
Extended load life reliability at ambient operating temperatures up to 105 C

Power Film and DC-Link Capacitors PHC and PSB

Illinois Capacitor / Cornell Dubilier power film capacitors including PHC, PSB, and PMB series are engineered for DC-link and snubber duties. Metallized polypropylene film provides self-healing properties and low dielectric losses. They protect IGBT switches from inductive voltage spikes.

Metallized polypropylene dielectric construction featuring self-healing properties
High dV/dt slew rate capability for reliable snubber protection of IGBT switches
Ultra-low equivalent series inductance ESL with minimal dissipation factor losses
Flame-retardant and moisture-resistant packaging engineered to UL94V-0 standards

Engineering architecture of Illinois Capacitor and Cornell Dubilier power components

Illinois Capacitor, integrated within Cornell Dubilier Electronics (CDE), provides premium energy storage and filtering solutions for demanding power electronics. The product portfolio spans aluminum electrolytic, metalized film, conductive polymer, and high-energy supercapacitors.

The engineering architecture emphasizes high ripple current capability, low equivalent series resistance (ESR), and robust thermal management.

Compact radial and screw-terminal package configurations enable design engineers to achieve superior power density in industrial motor drives, renewable converters, and medical systems.

Supercapacitors and high-voltage 3-cell radial EDLC technology

Electrochemical double-layer capacitors (EDLC) from Illinois Capacitor deliver exceptionally fast power discharge for energy harvesting, smart meters, and pulse power systems. The DGH and DSF series introduce an innovative 3-cell radial leaded package delivering operating voltages up to 9.0 WVDC.

Unlike single or dual-cell components, the 3-cell architecture saves circuit board space while internal cell balancing eliminates external balancing resistors.

With cycle endurance exceeding 500,000 charge and discharge cycles, these devices provide reliable energy bridging for mission-critical electronics.

Aluminum electrolytic capacitors for industrial DC-link bus filtering

Heavy-duty industrial power converters demand DC-link capacitors capable of absorbing massive ripple currents without thermal degradation. Illinois Capacitor CKS, LGL, and CGH electrolytic series offer voltage ratings reaching 500 VDC and superior thermal stability.

Heavy-duty screw terminal and snap-in configurations ensure low inductance connections to laminated busbars. Stringent quality manufacturing prevents electrolyte evaporation and ensures extended operating life under continuous three-shift factory operations.

Metalized power film and IGBT snubber capacitor protection

High-speed switching of IGBT and SiC power semiconductors generates intense inductive voltage transients. Illinois Capacitor PHC, PSB, and PMB metalized polypropylene film capacitors deliver rapid dV/dt slew rate suppression with minimal internal dissipation factor.

The self-healing dielectric prevents catastrophic short circuits by isolating localized breakdown spots. Flame-retardant epoxy cases conforming to UL94V-0 standards ensure fail-safe performance in traction inverters, induction heaters, and renewable energy grid interfaces.

Thermal management and mounting standards for capacitor assemblies

Long-term capacitor reliability is directly governed by internal core temperature and ambient airflow. Proper installation requires maintaining recommended spacing between adjacent capacitor cans to allow uninhibited natural convection or forced cooling.

When designing parallel capacitor banks, symmetrical busbar layout prevents uneven current sharing and localized thermal stress. Mounting hardware must adhere to specified torque limits to preserve hermetic terminal seal integrity.

International supply conditions and engineering support by SpareX

SpareX delivers Illinois Capacitor and Cornell Dubilier electronic components through streamlined global supply channels. Every shipment includes factory traceability documents, datasheets, and technical specifications.

Our dedicated application engineering team assists procurement managers and design engineers with parametric part cross-referencing, lifecycle management, and timely deliveries across international industrial markets.

Illinois Capacitor / Cornell Dubilier and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Illinois Capacitor / Cornell Dubilier and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.