157PUM-SI Datasheet, PDF (7/9 Pages) List of Unclassifed Manufacturers – Aluminum electrolytic capacitors Power Ultra Miniature Snap-in

Aluminum Capacitors
Power Ultra Miniature Snap-In
RIPPLE CURRENT AND USEFUL LIFE
2.4
157 PUM-SI
Vishay BCcomponents
MGA453
2.3
IA
IR _2.2
2.1
2.0
1.9
1.8
1.7
life multiplier
1.6
1.5
1.4
1.3
1.2
1.1
1.0
I_A = actual ripple current at 120 Hz
I_R = rated ripple current at 120 Hz and 85 °C
0.8
(1) _{Useful life at 85 °C and IR applied: 5000 hours}
0.5
0.0
40
50
60
70
Fig.6 Multiplier of useful life as a function of ambient temperature and ripple current load
(1)
80 _{Tamb (°C)} 90
Table 3
MULTIPLIER OF RIPPLE CURRENT (I_R) AS A FUNCTION OF FREQUENCY
FREQUENCY
(Hz)
I_R MULTIPLIER
50
0.90
100
0.95
120
1.00
200
1.15
1000
1.30
≥ 10 000
1.40
Document Number: 28338
Revision: 18-Aug-08
For technical questions, contact: [e-mail]
www.vishay.com
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