Circuit reliability
From KYNNpedia
Circuit reliability (also time availability) (CiR) is the percentage of time an electronic circuit was available for use in a specified period of scheduled availability. Circuit reliability is given by where T o is the circuit total outage time, Ts is the circuit total scheduled time, and T a is the circuit total available time. <math>T_s = T_a + T_o</math>
In addition, circuit reliability is the expected lifespan of operation of a functioning system under nominal conditions.
References
This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22. (in support of MIL-STD-188).