High-Performance Mica Capacitors Designed for Military & RF Systems

Exxelia provides four series of high-performance mica capacitors, designed to ensure stability, reliability, and minimal energy loss in military and radio frequency (RF) applications By William Mackenzie / 19 Feb 2025

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Exxelia has introduced four series of mica capacitors, designed to meet the stringent demands of radio frequency (RF), military, and aerospace applications. 

Exxelia’s silver mica capacitors are designed to offer performance, stability, precision, and reliability, and include series designed as per MIL standards. They offer a high Q factor that reduces energy loss, enhancing efficiency, particularly in RF applications. 

High-Performance Mica Capacitors Designed for Military & RF Systems
Mica Capacitors

Mica capacitors maintain consistent electrical characteristics over time and across temperature variations, making them suitable for use in critical environments. 

These capacitors are designed to withstand demanding conditions, supporting voltage ratings up to 1kV DC and operating temperatures up to +150°C. Exxelia offers custom design option and ensures long-term product availability without obsolescence. 

Exxelia offers four series of mica capacitors, providing customized solutions for a broad spectrum of critical applications across industries that demand the highest levels of precision and reliability. 

CMR Series 

The CMR series, built to MIL-PRF-39001 standards, offers high precision and reliability. Ideal for RF applications, these silvered mica capacitors deliver a high Q factor, ensuring minimal energy loss and consistent performance even under extreme conditions, with a capacitance range from 1 pF to 12,000 pF and voltage ratings up to 500V. Operating across a temperature span of -55°C to +150°C, these capacitors are engineered for environments where performance is non-negotiable. 

CM Series

The CM series is ideal for applications requiring robust endurance at elevated temperatures. Designed to operate up to +150°C and conforming to MIL-C-5 standards, these capacitors combine exceptional thermal stability with capacitance values between 200 pF and 12,000 pF and voltage ratings up to 500V. Their low dielectric losses make them suited to aerospace and military applications, where resilience in harsh environments is crucial. 

MF Series

The MF series is a high-reliability solution crafted for precision in critical applications. With capacitance values spanning from 4.7 pF to 33 nF and voltage ratings up to 1kV, these dipped mica capacitors deliver excellent temperature stability and high Q performance, particularly suited for RF systems and sensitive instrumentation. Their compact design and reliable performance make them ideal for precision-oriented technologies. 

CA Series

The CA series provides superior capabilities in high-reliability applications. Featuring 1/2capacitance values from 0.005 nF to 0.1 µF and voltage ratings up to 1kV, these silvered mica capacitors excel in RF and microwave applications. Operating within a temperature range of -55°C to +125°C, they combine a high Q factor and low ESR to deliver exceptional performance and minimal energy loss in demanding conditions. 

Learn more about Exxelia’s high-reliability capacitors >>

Posted by William Mackenzie Will is a Content Specialist at Defense Advancement. Since 2024, he has reported on innovation in defense platforms, mission systems, and situational awareness technologies. With a background in professional copywriting and editorial content, Will provides well-informed coverage of developments in electronic warfare, rugged systems, and advanced capabilities that are shaping the future of defense operations. Connect
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