04271109E3 View Datasheet(PDF) - Vishay Semiconductors
Part Name
Description
Manufacturer
04271109E3 Datasheet PDF : 6 Pages
| |||
042/043 AHH-ELB
Aluminum Capacitors
Vishay BCcomponents
Axial High Temperature High Voltage for E.L.B.
RIPPLE CURRENT AND USEFUL LIFE
6
IA
IR
5
4
lifetime multiplier
1.0
3
2.0
5.0
2
10
(1)
1
0
40
50
60
70
80
90 100 110 120
IA = actual ripple current at 10 kHz
IR = rated ripple current at 10 kHz, 105 °C
(1) Useful life at 105 °C and IR applied: 10 000 hours
Tamb = 20 °C
Fig.9 Multiplier of useful life as a function of ambient temperature
and ripple current load
Table 3
MULTIPLIER OF RIPPLE CURRENT (IR) AS A FUNCTION OF FREQUENCY
FREQUENCY
(Hz)
IR MULTIPLIER
50
0.20
100
0.27
300
0.45
1000
0.68
3000
0.82
≥ 10 000
1.00
Note
Formula (1) should be used to calculate the actual ripple current at 10 kHz (see Fig.9) when multiple frequencies are present. For an example of
the values 100 Hz and 50 kHz:
(1)
IA =
⎛
⎝
I---(--1--0-0---.-02----H7----z----)⎠⎞
2
+
⎛
⎝
I---(--5---0-1---k.--0--H----z----)⎠⎞
2
Document Number: 28331
Revision: 19-Jun-08
For technical questions, contact: aluminumcaps1vishay.com
www.vishay.com
203
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