Two microcontrollers for space, the ATSAMV71Q21RT from Microchip Technology Nantes (formerly Atmel) and the UT32M0R500 from Cobham Microelectronic Solutions (formerly Aeroflex), are compared in this post
For satellite applications where failure is not an option, electronic components need to operate constantly on demand, and have to be free of failures during the lifetime of the satellite-which can be for many years. To ensure this requirement is met, the components are put through many hours of stress testing covering all thermal.
Polymer tantalum capacitor technology was developed in response to demands from the market to lower the ESR of tantalum capacitors while preserving their small case size and high reliability. The technology is promising in several aspects. The higher quality interface between the dielectric and the polymer cathode increases the breakdown voltage of the device, as well as reducing its DC leakage current, even at extreme radiation exposure conditions.