V5 - lifetime of 16TQC10M capacitors lower than expected
The FMC DEL card runs quite hot when used in a PC on a SPEC carrier. Temperatures around 65-85 degrees have been seen.
Early datasheets told that the 16TQC10M capacitors on the board would have a lifetime of 63245 hours (2635 days) when used at 75 degrees. However, the latest information received shows that it is only 16000 hours at 75 degrees. Four times as little! There are 27 of those capacitors on the board.
Received the following info from Sanyo Panasonic regarding the life time of the 16TQC10M. Life time of 16TQC10M is as below; 105℃ x 2,000 80℃＝11,313 hours (1.3 yr) 75℃＝16,000 hours (1.8 yr) 70℃＝22,627 hours (2.6 yr) 65℃＝32,000 hours (3.7 yr)
- We should have a look into this (understand better what is the failure type, possibilities of replacing by other types).
See also the FAQ: