Datasheet

8© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com A4011_PEG124 • 1/10/2018
Axial Aluminum Electrolytic Capacitors – PEG124, +105°C and +125°C
Operational Life PEG124 (+125°C)
Operational life (L
op
) at ambient temperature T
a
and ripple current I
AC
.
Diagram valid for 20 mm case size.
Operational life,
16 mm case size: 0.67 x diagram value
13 mm case size: 0.44 x diagram value
10 mm case size: 0.37 x diagram value
Example:
Article: PEG124MG368AQ (16 x 37 mm)
Ambient temperature (T
a
): +85°C
Ripple current at 10 kHz (I
AC
): 6.0 A
I
RAC
(+125°C ≥ 5 kHz) = 2.6 A (from data table)
→ I
AC
/ I
RAC
(+125°C) = 2.3
Operational life: interpolation between the
L
op
-curves → L
op
~ 20 kh x 0.67 = 13 kh (blue curves)
Operational Life PEG124 (+105°C)
Operational life (L
op
) at ambient temperature T
a
and ripple current I
AC
.
Diagram valid for 20 mm case size.
Operational life,
16 mm case size: 0.67 x diagram value
13 mm case size: 0.44 x diagram value
10 mm case size: 0.37 x diagram value
Example:
Article: PEG124RL3150Q (20 x 46 mm)
Ambient temperature (T
a
): +79°C
Ripple current, at 10 kHz (I
AC
): 2.7 A
I
RAC
(105°C ≥ 5 kHz) = 1.10 A (from data table)
→ I
AC
/I
RAC
(+105°C) = 2.45
Operational life: interpolation between the
L
op
-curves → L
op
~ 40 kh (blue curves)
0
0.5
1.0
1.5
2.0
2.5
3.0
30
40
50
60
70
80
90
100
110
120
Ambient Temperature (T
a
)
350,000 h
100,000 h
40,000 h
20,000 h
10,000 h
6,000 h
Maximum Ripple Current
I
AC
/I
RAC
(125°C)
30
40
50
60
70
80
90
100
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Maximum Ripple Current
Ambient Temperature (T
a
)
350,000 h
200,000 h
100,000 h
40,000 h
22,000 h
I
AC
/I
RAC
(105°C)