Vishay bccomponents, Aluminum capacitors power eurodin printed wiring, Ripple current and useful life impedance (z) – C&H Technology 052 PED-PW User Manual
Page 10
050/052 PED-PW
Vishay BCcomponents
Aluminum Capacitors
Power Eurodin Printed Wiring
www.vishay.com
For technical questions, contact: [email protected]
Document Number: 28345
134
Revision: 10-Mar-09
RIPPLE CURRENT AND USEFUL LIFE
IMPEDANCE (Z)
Fig.27 Typical impedance as a function of frequency
10
2
10
-2
10
1
10
-1
Z
( )
Ω
10 10
2
10
3
10
4
10
5
10
6
10
7
f (Hz)
Curve 1: 470 µF, 385 V
Curve 2: 1000 µF, 250 V
Curve 3: 4700 µF, 100 V
Curve 4: 10 000 µF, 63 V
Curve 5: 47 000 µF, 10 V
Case Ø D x L = 40 x 70 mm
1
2
3
4
5
Fig.28 Typical impedance as a function of frequency
10
2
10
-2
10
1
10
-1
Z
( )
Ω
10 10
2
10
3
10
4
10
5
10
6
10
7
f (Hz)
1
2
3
Case Ø D x L = 40 x 100 mm
Curve 1: 6800 µF, 100 V
Curve 2: 15 000 µF, 63 V
Curve 3: 68 000 µF
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
40
50
60
70
80
90
I
A
I
R
(1)
1
1.2
1.5
2
2.5
3
4
5
8
10
15
20
30
45
60
life multiplier
I
A
= actual ripple current
I
R
= rated ripple current at 100 Hz and 85 °C
(1)
Useful life at 85 °C and I
R
applied: 15 000 hours
Fig.29 Multiplier of useful life as a function of ambient temperature and ripple current load.
T
amb
(°C)