电解电容的寿命计算详细公式-2015

LO：Guaranteed lifetime in catalog 〔Hrs〕

LO'：Actual lifetime performance available for using in the formula 〔Hrs〕

To：Maximum rated operating temperature〔℃〕

to：Maximum rated ripple curraet 〔Arms〕[According to using frequency and then multiply conversion quotiety]△To：Designed temperature rise at maximum rated ripple current flow 〔℃〕

Ta:Actual ambient tempeature in the application operating〔℃〕

Tx：Surface temperature of capacitor case〔℃〕.

tx：Actual ripple current flow in the application operating〔Arms〕

△Tx：Estimated temperature rise at capacitor core due to tx〔℃〕

Lx：Estimated lifetime〔Hrs〕

Ly：Estimated lifetime when 24 hours operating a day〔Yrs〕