Datasheet
8© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com A4069_A758 • 8/29/2017
Single-Ended Conductive Polymer Aluminum Solid Electrolytic Capacitors
A758 105°C
Expected Life Calculation Chart
Expected life depends on operating temperature according to the following formula:
L = Lo x 10
(To-T)/20
Where:
L: Expected life
Lo: Life at maximum permissible operating temperature with rated operating voltage applied (hours)
T: Actual operating temperature
To: Maximum permissible operating temperature
The effect of derating temperature can be seen in this graph.
In this example, the life expectancy of a 2,000 hour Polymer capacitor is signicantly greater than that of a 2,000 hour
standard electrolytic capacitor.
Expected Life (hours)
Actual Operating Temperature (ºC)
20,000 200,0002,000
85ºC
105ºC
65ºC
Expected Life Calculation Chart
65
70
75
80
85
90
95
100
105
50,000 100,000 150,000 200,000
Temperature (ºC)
Conductive Polymer Electrolytic
Aluminum Electrolytic
Capacitor Life (H)