The Silicon Carbide power diodes were specifically designed for protection of solar cells arrays in solar panels mounted in satellites and space exploration modules. The first batches of devices are currently used for two European Space Agency missions, BepiColombo and Solar Orbiter.
Even if there are known weaknesses of SiC Schottky diodes while being biased at high voltage in dense ions environments, they can still be the best option for certain very demanding operational conditions. The compatibility of these devices is analysed in this technical note.
Space qualified silicon carbide power diodes developed by CNM-CSIC in collaboration with ALTER TECHNOLOGY will be handled as ALTER TECHNOLOGY specific product for high reliability and harsh environment-related markets.
Alter Technology as reference test house Screening of a high number of devices under very harsh conditions: Custom testing setup High Temperature: 270ºC Low temp: -170ºC High Voltage tests: 250V High Power tests: 2.5A Long lasting tests with constant monitoring of electrical parameters and temperature of each single diode.