AC Filters
We provide high-performance AC filtering capacitors for UPS systems, welding equipment, and tuned passive filtering.
Wind Energy
ASC Capacitors is leading the charge with high-quality capacitors for the alternative energy industry.

AC Filters
We provide high-performance AC filtering capacitors for UPS systems, welding equipment, and tuned passive filtering.
Wind Energy
ASC Capacitors is leading the charge with high-quality capacitors for the alternative energy industry.

Capacitors for Power & Precision

ASC designs and builds film & foil capacitors for demanding power-electronics applications. From DC link and snubber to filtering and surge protection, our capacitors deliver stable performance under heat, ripple, and vibration. Explore products, specs, and engineering resources.

Our Capacitor Range

CAPACITORS BY INDUSTRY

Whether you need high-reliability components for industrial automation, renewable energy, or compact designs for consumer electronics, our industry-focused product selection helps you find the right solution for your application.

View our Capacitors by Industry

CAPACITORS BY TYPE

From general-purpose film capacitors to specialized snubber and EMI suppression solutions, our product catalog is engineered for performance and reliability. Explore our full range of capacitor types to find the ideal component for your design or application.

View our Capacitors by Type

Capacitor Guide – Types, Applications & How They Work

Capacitors are one of the most essential components in modern electronics, storing and releasing energy to power critical systems. In our comprehensive Capacitor Guide, we break down how capacitors work, the different types available, and their real-world application

Whether you’re an engineer, designer, or procurement professional, this resource covers everything from capacitance and voltage ratings to film and foil capacitor advantages—ASC’s specialty.

👉 Learn how to choose the right capacitor for your application in our step-by-step guide.

Read the Capacitor Guide.

Featured Capacitors

Designed for demanding low-to-medium voltage applications such as traction inverters, industrial inverters, adjustable-speed/variable frequency drives and rail grid interties. Also, designed for high demand environments as well as lower current applications.

Snubber Capacitors

The HVSC is designed for demanding low-to-medium voltage applications such as traction inverters, industrial inverters, adjustable-speed/variable frequency drives, and rail grid interties, while the IGBT Snubber (329) is suited for high-demand environments as well as lower current applications.

View our Snubber capacitors

AC Filter Capacitors

Designed for AC harmonic filtering, 3phase filtering, or power factor correction applications

View our AC Filter capacitors

About ASC Capacitors

AMERICAN SHIZUKI CORPORATION

ASC Capacitors, a division of American Shizuki Corporation, is a leading U.S. manufacturer of high-quality film and foil capacitors. With a legacy dating back to the 1940s, ASC has been at the forefront of capacitor technology, serving diverse industries with custom solutions. Their products are integral to applications in renewable energy, industrial automation, military systems, and more, offering reliability and performance in demanding environments. Headquartered in Ogallala, Nebraska, ASC operates a 120,000-square-foot facility dedicated to manufacturing and sales. As a wholly owned subsidiary of Japan's Shizuki Electric Co., ASC combines American manufacturing excellence with global innovation, ensuring top-tier capacitor solutions for clients worldwide.

Learn more about ASC's history

CONTACT US

301 West O Street
Ogallala, Nebraska 69153

Phone: (308) 284-3611
Fax: (308) 284-4141
Email: sales@ascapacitor.com

AC Filters

Wind Energy