History of the Company:

We started in San Fernando Valley in 1951 and were branded as "West-Cap", a name that is still heard in the industry today.  Then in 1958 (SFE) West-Cap of Arizona moved the manufacturing facility to Tucson, where San Fernando Electric sold assets to Component Research Company in 1990 and they sold in 1991 and Arizona Capacitor Company was formed.  Arizona Capacitor Co. sold to Goguen Industries in 1997, who operated the company until they sold in 2003 and Arizona Capacitors, LLC was formed.

In 2010, Electrotechnik Industries, Inc., of Clearwater, Florida, acquired Arizona Capacitors, LLC, and we now operate as Arizona Capacitors, Inc.  Electrotechnik is a holding company which operates various subsidiaries in the passive electronic components industry including: custom magnetics, microwave, resistors, and now, wound film capacitors.

We are located in Tucson, Arizona, less than 20 minutes from the Tucson International Airport.  Our property spans one acre and our facility occupies over 20,000 square feet of manufacturing and office space. We are a competitive employer and have built a well-trained, quality-conscious work force. 

Many of our wound film capacitor and electronic filter drawings date back as far as the 1950s. We have proudly served the military and private industry with quality components for over 60 years. While we are proud of our past, we are constantly working toward developing new products for the future.


Arizona Capacitors designs and manufactures all types of custom wound film capacitors including: paper, foil, plastic, metalized film, polyester, polycarbonate, Teflon, polypropylene, and polystyrene capacitors. We build custom film capacitors, in addition to offering a line of standard film capacitors.  Arizona Capacitors also manufactures wrap n fill, epoxy dipped, phenolic, bathtub, tubular hermetic, rectangular hermetic, welded cases, molded, PVC tubular.

When considering manufacturing pertaining to wound film capacitors, Arizona Capacitors is your destination for standard and custom components. If you do not see what you need listed on our website or in one of our catalogs, give us a call for your solution. We can design a product to meet your specific needs.

Capacitor applications Arizona Capacitors has filled include: by-bass, R-C networks, matched sets, pulse discharge, impulse generators ferro resonant, DC filtering, voltage multiplier, audio, and more.

Quality Standards:

ISO 9001:2015
MIL-STD-790 Military Approved
RoHS Compliant & Non-RoHS Compliant

Mil-C-25 Qualified (CP53,54,55) 

Major Industries We Serve:

  • Railroad
  • Audio & Communications
  • Power Generation & Distribution
  • Medical Equipment
  • Motor & Pump Manufacturers
  • Aerospace & Aircraft
  • Automotive Electronic Test & Controls
  • Electronic Testing