EYZ Datasheet, PDF (6/8 Pages) Vishay Siliconix – Aluminum Capacitors Power Printed Wiring Style

Aluminum Capacitors
Power Printed Wiring Style
RIPPLE CURRENT AND USEFUL LIFE
EYZ
Vishay Roederstein
2.7
I_A
I_R
2.6
2.5
2.4
2.3
2.2
2.1
2.0
DESIGN
1.9
1.8
1.7
W 1.6
1.5
E ^1.4
1.3
N^1.2
Life multiplier
I_A = Actual ripple current at 100 Hz
I_A = Rated ripple current at 100 Hz and 105 °C
R ^{(1) Useful life at 105 °C and IR applied: 5000 h}
1.1
1.0
0.8
0.5
0.0
40
50
60
70
80
90
Fig.9 Multiplier of usefil life as a function of ambient temperature and ripple current load
(1)
100
110
T_a (°C)
O _{MULTIPLIER OF RIPPLE CURRENT (IR) AS A FUNCTION OF FREQUENCY}
F FREQUENCY
(Hz)
50
U_R = 10 V to 25 V
0.93
I_R MULTIPLIER
U_R = 40 V to 100 V
0.91
U_R = 200 V to 400 V
0.86
T₁₀₀
1.00
1.00
1.00
200
1.04
1.05
1.13
400
1.07
1.09
1.21
O₁₀₀₀
1.11
1.13
1.29
2000
1.13
1.15
1.32
N ⁴⁰⁰⁰
1.15
1.18
1.35
≥ 10 000
1.18
1.22
1.40
Document Number: 25127
Revision: 25-Aug-08
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