EYN
Aluminum Capacitors
Standard - 85 °C Snap-in
Vishay Roederstein
LOW TEMPERATURE BEHAVIOUR
Table for the calculation of the maximum 10 KHz impedance at low temperatures:
Tabular value
Z (10 kHz) [Ω]=
--------------------------------------
CR [μF]
RATED VOLTAGE UR (V)
Ta
(°C)
6.3
10
16
25
35
50
63
100
160
200
250
350
400
450
500
25
40
9000
7200
5400
4050
3150
2700
2250
1710
1960
7000
1820
6500
1680
7200
1870
6600
1870
-
1870
-
1870
-
30 000 24 000 18 000 13 500 10 500 12 000 10 000 7600
The lower limit of the series resistance and impedance is given by the ohmic part of the contact points and the foil resistance
values. Therefore it will not always be possible to achieve calculated values below 0.03 Ω.
LEAKAGE CURRENT
Formula for the calculation of the maximum leakage current IL for acceptance tests. Testing conditions: UR, 20 °C, 5 minutes.
(CR/µF) x (UR/V)
IL (300S)/µA £ 3 x
LIFETIME TABLE UR ≤ 100 V
INTERRELATION BETWEEN ALTERNATING CURRENT, AMBIENT TEMPERATURE AND LIFETIME
I/IR (FREQUENCY-DEPENDANT)
LIFETIME MULTIPLIER L (DEPENDING ON I/IR AND TA)
AMBIENT TEMPERATURE TA (°C)
FREQUENCY (HZ)
50
100
0.00
0.19
0.39
0.58
0.78
0.97
1.17
1.36
1.56
1.75
1.95
2.14
2.34
2.53
120
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
2.00
2.20
2.40
2.60
250
0.00
0.22
0.43
0.65
0.86
1.08
1.30
1.51
1.73
1.94
2.16
2.38
2.59
2.81
500
0.00
0.23
0.45
0.68
0.90
1.13
1.35
1.58
1.81
2.03
2.26
2.48
2.71
2.94
1000 >2500
40
66
62
53
43
32
23
16
11
7.7
5.1
3.4
2.2
1.5
1.0
45
42
40
34
28
22
16
12
3.3
6.0
4.2
2.9
2.0
1.4
50
27
26
22
19
55
17
17
15
12
60
11
11
65
70
75
80
2.4
2.3
2.2
1.9
1.7
1.4
1.1
85
1.7
1.6
1.5
1.4
1.2
1.00
0.00
0.17
0.34
0.51
0.68
0.85
1.02
1.20
1.37
1.54
1.71
1.88
2.05
2.22
0.00
0.23
0.46
0.70
0.93
1.16
1.39
1.62
1.85
2.09
2.32
2.55
2.78
3.01
0.00
0.24
0.47
0.71
0.94
1.18
1.42
1.65
1.89
2.12
2.36
2.59
2.83
3.07
7.6
7.4
6.7
5.8
4.8
3.8
3.0
2.3
1.7
1.3
5.1
5.0
4.5
4.0
3.4
2.7
2.2
1.7
1.3
3.5
3.4
3.1
2.8
2.4
1.9
1.6
1.2
9.9
8.4
6.9
5.5
4.2
3.1
2.3
1.7
1.2
15
11
10
7.8
5.9
4.3
3.1
2.2
1.6
1.1
8.3
6.0
4.2
2.9
2.0
1.4
combination
not
permitted
IR
I
Rated ripple current (120 Hz, rms) [A] at upper category temperature Tuc taken from data sheet.
User ripple current [A].
Ta
L
Ambient temperature of capacitor [°C].
Useful life multiplier.
Regard L as a function of ambient temperature (x-axis) and of current (y-axis); use the current-axis according to the frequency.
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For technical questions, contact: aluminumcaps3@vishay.com
Document Number: 25137
Revision: 27-Oct-06