About Us

A Company in Touch with the Needs of Today’s Engineers

Illinois Capacitor is a leading manufacturer of miniature and subminiature capacitors for electronic circuitry applications. Dedicated to meeting the industry’s highest quality standards, IC manufactures leading-edge capacitors, including: electrolytic, organic semiconductor solid aluminum electrolytic, polymer, film and power film capacitors, in a variety of package designs.

IC traces its roots over 70 years. Today, it offers one of the industry’s most extensive ranges of electrolytics in +85°C, +105°C and +125°C ratings, including:

• Axial Lead
• Radial Lead
• Snap Mount
• Direct Mount
• Surface Mount

A customer-focused company, IC differentiates itself with the highest possible service levels and product quality. The Applications Engineering Department advises engineers and buyers as to what capacitor technology best suits their needs, as well as what specifications are recommended for their unique operational variables.

Many products are available with optional value-added services to improve customer assembly operations, add mechanical rigidity in special applications or meet special tolerances.

PRODUCTS

A pioneer in capacitor technology, Illinois Capacitor manufactures components in plants worldwide and offers direct shipments to customer assembly points. Constant product improvement have resulted in components that are smaller, more reliable and often more cost-effective than their predecessors. In addition to main-stream electrolytics, power films are a rapidly growing area, with many product innovations.

Illinois Capacitor is committed to working with customers to satisfy their project needs with the “best” possible product solutions. That factors-in circuit performance, environmental characteristics, operational life, cost-effectiveness and safety certifications.

The “IC concept” is to maximize customer satisfaction. All components are conservatively rated, so that there’s no need to “overspecify.” Every capacitor is inspected and 100% burn-in tested to eliminate the need for costly customer incoming inspections.

IC is a certified “JIT,” dock-to-stock supplier for many companies, and maintains an extensive inventory of all popular sizes. It has been recognized with supplier awards.

APPLICATION SOLUTIONS

With a very broad product line, Illinois Capacitor can respond to most needs with standard products, reducing engineering burdens and shortening application cycles. This website and companion comprehensive printed catalog offer extensive specification, performance and application information on over 5,000 standard part numbers.

Applications range from consumer electronics to sophisticated industrial automation systems. Markets are as varied as applications spanning virtually anywhere that electronics is found. Particular areas of strength are in capacitors for power and audio circuitry.