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De-rating and MTBF Calculation tool

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davidforu

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Any one know the free tool to do de-rating and MTBF calculation.and if possible any tutorial for calculating MTBF and Derating analysis.
 

for derating and MTBF calculation go through the MIL-217F book for manual calculation , regarding free tool i do not know.
 

Thank u for your replay but it is very tough to refer MIL-217F each time .Do you have any idea Some MS-Exel based tool where we can enter the value to get the board MTBF .I used in my previous company .but i dont have that right now.
 

From using relex to get decent MTBF figures, all Caps rated 2X working voltage and all resistors <50% power rating. MIL-217 is so out of date its a nigtmare getting things worked out vene with bespoke software.
 

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