Preliminary_DEV-i.MX53_HUM_V1.2.docx
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8
Dependability
8.1
MTBF
Please keep in mind that a part stress analysis would be the only way to obtain significant failure rate results,
because MTBF numbers just represent a statistical approximation of how long a set of devices should last before
failure. Nevertheless, we can calculate an MTBF of the development board using the bill of material. We take all the
components into account. The PCB and solder connections are excluded from this estimation. For test conditions
we assume an ambient temperature of 30°C of all development board components. We use the MTBF Calculator
from ALD (
http://www.aldservice.com/
) and use the reliability prediction MIL-217F2 Part Stress standard. Please get
in touch with Bluetechnix (
) if you are interested in the MTBF result.
