Datasheet
8© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com A4072_A759 • 11/29/2017
Single-Ended Conductive Polymer Aluminum Solid Electrolytic Capacitors
A759 125°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.
Lifetime vs Operating Temperature
20,000 h
Operating Temperature (°C)
200,000 h2,000 h
65°C
75°C
85°C
95°C
105°C
115°C
125°C
Expected Life Calculation Chart
Lifetime Comparison Polymer vs Electrolytic
85°C
105°C
125°C
100,000 h50,000 h0 h 150,000 h 200,000 h
Lifetime Conductive Polymer
Lifetime Electrolytic
Capacitor Life (H)