0
\$\begingroup\$

Can anyone some sample calculation on how to calculate the lifetime on an Aluminum Electrolytic capacitor who's Endurance value (Assumed as Lifetime value is 2000 hours at 105degC).

enter image description here

The manufacturer also gives a formula like below,

enter image description here

My working :

The below table is how much I am going to operate the capacitor at each temperature. And I am planning to use the capacitor for a lifetime of 10years which approximately comes to 87660 hours (considering leap year).

enter image description here

Can someone tell me the logic behind the below calculation.

enter image description here

Why is the last column values multiplied with 2000 (2000 h cap lifetime value)?

\$\endgroup\$
5
  • \$\begingroup\$ Where did the table come from? Did you create it? If so, why did you choose to make those calculations? If not, what was the source? \$\endgroup\$
    – Elliot Alderson
    Commented Apr 2, 2021 at 11:42
  • \$\begingroup\$ Similar question and answer \$\endgroup\$
    – Andy aka
    Commented Apr 2, 2021 at 12:15
  • \$\begingroup\$ @ElliotAlderson, I did not make those calculations. I found them from a file which was already done by some unknown person. Do you know how those calculations are made? \$\endgroup\$
    – user220456
    Commented Apr 2, 2021 at 13:34
  • \$\begingroup\$ @Andyaka, thank you for the link. Do you have some idea on the above calculation images posted in the question? \$\endgroup\$
    – user220456
    Commented Apr 2, 2021 at 13:34
  • 1
    \$\begingroup\$ I don't recognize the calculation images and have no idea where they came from. The answer I linked should be clear in that respect as it uses the same formulas. \$\endgroup\$
    – Andy aka
    Commented Apr 2, 2021 at 13:54

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.