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T[_6_]

On 09/16/2016 07:26 PM, wrote:
That doesn't make sense either. When a company makes a new product do they test it for 5 years to get a true MTBF before they market it? No,they pick a good sounding one and hope it works that long.

Hi Red,

If I remember correctly when I use to do this for the military,
the numbers we used were from tables where they cooked the
parts to simulate aging. Then they did a formula on it
to come up with an MTBF. Everything was based on one hour.

MTBF is really only useful if comparing one part's
MTBF to another part's MTBF.

The warranty is where you get any real idea of how long
the manufacturer thinks things will last.

-T