i was wondering for a project of mine if i can order components that are made for a long time of usage. would Mil-spec components fit under this category? What i basically want are parts that are good for a very long time, and have a very high reliability, in addition to high life cycle (amount of times it is used) I can count out electrolytics, as they don't last long. Components with high power ratings are also probably better. Does anyone know if there are companies that manufacture these?
p.s. Is there an alternative to relays that i can use to switch high amounts of power? because relays have a low amount of switchings.