Calculation Of Capacitor Life

Remark
1.

Life calculation is limited to standard products on catalog only. For request for all custom designed products, please contact Nantong Jianghai's business window.

2.

The expected life of capacitor is a statistical value based on practical experience and theoretical calculation. The above formula is only for theoretical reference. If the working conditions are different from the rated conditions, please contact our technical department.

Super capacitor: The foluma doesn't consider the charge&discharge of the capacitor. It is necessary to consider the temperature rise inside the capacirot as charge&discharge process will produce heat.

3.

For series without calculation foluma, please consult Nantong Jianghai's business window.

Please enter the required parameters by the formula
Please selest the Classification 
*
Series 
Rated operating temperatureT0
°C
Actual operating temperatureT
°C
Ripple current acceleration coefficientK
K=2,Ripple current is within the permissible range
K=4,When Ripple current exceeds the permissible range
Ambient temperatureTA
Actual ripple current RMSIA
Rated ripple currentIR
Core temperatureTC
Permissible temperature increase inside the capacitor core at rated temperature△To
°C
Temperature increase inside the capacitor core at actual operating temperature△T
°C
Actual operating voltageUa
V
Rated operating voltageUr
V
Applied voltageU
V
Highest rated operating voltageVo
V
Actual operating voltageV
V
Voltage acceleration coefficientn
N value generally takes 6~12
Rated ripple current at rated operating temperatureIo
Arms
Actual ripple current appliedI
Arms
Actual or calculated hotspot temperatureΘhotspot
Lifetime at rated voltage and hotspot temperatureL0
hrs
Rated hotspot temperatureΘ
Ambient temperatureΘA
Ripple currentIrms
A
ESRESR
Ω
Thermal resistanceRth
K/W
Temperature acceleration coefficientC
C value generally takes 10~12
Temperature acceleration coefficientm
m value generally takes 7~10
Lifetime calculationL
小时
L
year