Advanced Capacitors for Demanding Applications

Evans Capacitor Company manufactures high energy density capacitors for demanding applications that require the highest levels of quality. We have the most power dense capacitor technology in the industry and are routinely specified for defense, aerospace, and energy exploration applications where high reliability and SWaP (space, weight, and power) savings are critical design considerations. When compared to traditional capacitor technologies, EVANSCAPS save weight, volume, and power to deliver a key enabling solution for applications including radar, laser, amplifier, power hold up/bridge power, electronic warfare, downhole drilling, and many more.

Browse our full collection of capacitor products

Our capacitor products are the most power dense capacitors in the industry. Reap the benefits of our unique hybrid technology: high capacitance, long operating lives, low ESR, high current handling capability, and more.

Search by DC Voltage, Capacitance, and Temp Range

Use our Capacitor Search Tool to find the hybrid wet tantalum capacitor that best meets your needs. Just input your product requirements and we’ll find you the right capacitor for your application.

Get in touch for more information or a quote

Looking for more information before you make a final decision? Find your EvansCap International Sales Representative or contact us directly. Know exactly what you need? Request a quote and we’ll be in touch right away.


“If impressing us was your intent, consider us impressed! With an ESR that low, you are going to make us re-think how we design with these capacitors. The current shunts we use are 1 – 2 m?. It would be stupid to use a 2 m? current shunt with a 5 m? capacitor.”

Engineer at Tier 1 Defense Contractor


“Each pulser contains its own local energy storage capacitor bank consisting of 3 Evans Capacitor Company TDD3125452 4500?F/125WVDC tantalum “Hybrid” capacitors and their associated bleeder resistors. The capacitors deserve special note as they are a major enabling technology that reduces the volume of the capacitor bank by at least a factor of three while providing better ripple current characteristics and superior cooling compared to standard electrolytic devices. The use of these capacitors allows the incorporation of 100J of energy storage in approximately 3.5 cubic inches.”

Engineer at Lawrence Livermore National Labs


“The Temperature testing completed Monday. I’ll send initial conditions and results in a few days, but if someone else had shown me the data, I wouldn’t believe it. The C, ESR and ESL results look too good to be real. These caps are being presented to a USG customer as the technology enabler (for a BFL) on the 12th. Amazing, totally amazing.”

Senior Employee at Tier 1 Global Aerospace and Defense Technology Company


“I’ve been waiting six years for industry to get these perfected and to trl-6 or 9. We will need tons of these in the near future for high pulsed power in the environment.”

Senior Engineer at Tier 1 Global Aerospace and Defense Technology Company