Presidio Components is the proud supplier of SMPS capacitors for the Mars rovers Spirit and Opportunity. Presidio Components is a provider of ceramic capacitor products. All manufacturing takes place in its 25,000 square-foot facility. Presidio Components' markets include commercial, military and medical electronics. The products are used in missile guidance systems, switch-mode power supplies, computers telecommunications and hearing aids. Presidio s product line also includes microwave, fiber optic, multi-layer and high voltage capacitors. Presidio is qualified to S level of Mil-C-55681 and currently provides ceramic capacitors to hundreds of corporations. The company was founded in 1980 and is located in San Diego, Calif.