New Capacitors Offer Better Balance Of Performance, Reliability And Cost For LEO Satellites

Focus:

Growth in the low-Earth-orbit LEO satellite market has led a growing number of passive component manufacturers to dedicate R&D efforts to producing components specifically optimized for LEO satellites. Two such capacitor developments are high-capacitance-per- unit-volume (high-CV) multilayer ceramic capacitors (MLCCs) and enhanced-reliability commercial off-the-shelf (COTS) bulk capacitors. This article discusses these developments with a focus on two recently introduced series from the authors’ company. These capacitors address the needs for low-cost alternatives to MIL-PRF-32535 MLCCs in the hardware development phase (the EM series) and to MIL-PRF-55365 tantalums for in-flight use (the TBJ series SRC8000).

What you’ll learn:

• How to understand the role of the MIL-PRF-32535 specification on selection of high-CV MLCCs in satellite applications
• How to understand the trend of using consumer- or automotive-grade MLCCs in satellite applications during the prototyping phase and the benefits of the EM series
• How to understand the trend of using COTS alternatives to MIL-PRF-55365 tantalums for satellites in-flight and the benefits of a space-grade alternative (the TBJ series SRC8000)

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Author & Publication:

Ron Demcko, Daniel West and Ryan Messina, KYOCERA AVX, Fountain Inn, S.C. , How2Power Today, Aug 15 2024

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