Important Indicator Of Industrial Computer Reliability-MTBF

- Dec 30, 2019-

MTBF is the mean time between failures. The unit is "hours", which represents the average time from the start of a new product to the first failure under the specified working environment conditions.


A larger MTBF value indicates higher reliability and better ability to work correctly. It reflects the time quality of the product, and it is a capability that reflects the product's ability to remain functional for a specified period of time.


725px-Time_between_failures.svg


Calculation:


MTBF = 1 / λpp


λp = λb * πEE * πQQ * πA * πCS * πLA * πSL * πTT



λp: Product failure rate


λb: Basic failure rate of parts


πE environmental factors


πQ quality factor


πA application factors


πC complexity factor


πL cumulative factor


πS electrical stress factor


πT temperature factor