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.
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
