Hi Bushra,
Based upon lifetesting, in the amounts as prescribed by AEC-Q100, with 0 failures found, we can calculate a failure rate <10FIT, with 60% Confidence Level, at a junction temperature of 55°C with an activation energy of 0.7eV. This failure rate equals an MTBF > 100M hours. These figures are sample size limited.
Based upon justified field returns, so excluding EOS/ESD and NTF, we can calculate an experienced field failure rate << 1FIT. For this calculation, we assume 1.5 hours of operation per day, for each delivered product, this equals a typical automotive profile.
Best regards,
Tomas
