User Manual

Document Number: 28337 For technical questions, contact: [e-mail]
www.vishay.com
Revision: 18-Aug-08 39
156 PUM-SI
Aluminum Capacitors
Power Ultra Miniature Snap-In
Vishay BCcomponents
RIPPLE CURRENT AND USEFUL LIFE
ADDITIONAL ELECTRICAL DATA
PARAMETER CONDITIONS VALUE
Voltage
Surge voltage
U
s
= 1.15 x U
R
Reverse voltage
U
rev
≤ 1V
Current
Leakage current
After 1 minute at U
R
I
L1
≤ 0.006 C
R
x U
R
+4µA
After 5 minutes at U
R
I
L5
≤ 0.002 C
R
x U
R
+4µA
Inductance
Equivalent series inductance (ESL) All case sizes
typ. 19 nH
max. 25 nH
Fig.6 Multiplier of useful life as a function of ambient temperature and ripple current load
I
A
= Actual ripple current at 100 Hz
I
R
= Rated ripple current at 100 Hz and 85 °C
(1)
Useful life at 85 °C and I
R
applied: 5000 hours
MGA453
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.8
0.5
0.0
I
A
I
R
40 50 60 70 80 90
T
amb
(°C)
life multiplier
60
45
30
20
15
10
8
5
4
3
2.5
2
1.5
1.2
1
(1)