If you need 15/20 years, you get a separate contract. 7 years as a baseline is not too bad, for that kind of device, but likely not sufficient on its own. Aut

If you need 15/20 years, you get a separate contract. 7 years as a baseline is not too bad, for that kind of device, but likely not sufficient on its own. Automotive test-beds etc. would require longer timeframes.