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2000 Nov 06
11
BCcomponents
Product specification
Aluminum electrolytic capacitors
Power Ultra Long Life Snap-in
159 PUL-SI
RIPPLE CURRENT AND USEFUL LIFE
Table 3
Multiplier of ripple current (IR) as a function of frequency
FREQUENCY
(Hz)
IR MULTIPLIER
50
0.9
100
0.95
120
1.0
200
1.15
1000
1.3
≥10000
1.4
Fig.6 Multiplier of useful life as a function of ambient temperature and ripple current load.
IA = actual ripple current at 120 Hz and 105 °C.
IR = rated ripple current at 120 Hz and 105 °C.
(1) Useful life at 105
°C and IR applied: 5000 hours.
1.3
1.2
1.1
1.0
0.8
0.5
0.0
40
50
60
70
80
90
Tamb (C)
o
IA
R
I
MGA454
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
(1)
2.4
2.5
2.6
2.7
100
110
life multiplier
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