Datasheet

Document Number: 28309 For technical questions contact: [e-mail]
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Revision: 16-Nov-05 101
038 RSU
Aluminum Capacitors
Radial Standard Ultra Miniature
Vishay BCcomponents
RIPPLE CURRENT AND USEFUL LIFE
Table 3
MULTIPLIER OF RIPPLE CURRENT (I
R
) AS A FUNCTION OF FREQUENCY
FREQUENCY
(Hz)
I
R
MULTIPLIER
C
R
< 100 µF C
R
= 100 to 1000 µF C
R
> 1000 µF
50 0.70 0.75 0.80
100 1.00 1.00 1.00
500 1.30 1.20 1.10
1000 1.40 1.30 1.12
≥ 10000 1.50 1.35 1.15
3.3
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.5
0.0
3.1
40 50 60 70 80 90 100
T
amb
(°C)
lifetime multiplier
(1)
70
50
4.0
6 .0
2.0
1.5
30
15
10
3.0
20
1.0
I
A
I
R
CCC205
Fig.8 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, 85 °C.
Useful life at 85 °C and I
R
applied:
case ∅D ≤ 8 mm: 2 500 hours;
case ∅D ≥ 10 mm: 3 500 hours.
Table 4
TEST PROCEDURES AND REQUIREMENTS
TEST
PROCEDURE
(QUICK REFERENCE)
REQUIREMENTS
NAME OF TEST REFERENCE
Endurance IEC 60384-4/
EN130300
subclause 4.13
T
amb
=85°C; U
R
applied;
case ∅≤8 mm: 2000 hours
case ∅≥10 mm: 3000 hours
ΔC/C: ± 20 %
tan δ≤2 × spec. limit
I
L5
≤ spec. limit
Useful life CECC 30301
subclause 1.8.1
T
amb
=85°C; U
R
and I
R
applied;
case ∅≤8 mm: 2500 hours
case ∅≥10 mm: 3500 hours
ΔC/C: ± 50 %
tan δ≤3 × spec. limit
I
L5
≤ spec. limit
no short or open circuit
total failure percentage: ≤ 1 %
Shelf life
(storage at high
temperature)
IEC 60384-4/
EN130300
subclause 4.17
T
amb
=85°C; no voltage applied;
1000 hours
after test: U
R
to be applied for 30 minutes,
24 to 48 hours before measurement
ΔC/C: ± 20 %
tan δ≤2 × spec. limit
I
L5
≤ 3 × spec. limit
Surge IEC 60384-4/
EN130300
subclause 4.14
from source of 1.15 × U
R
:
RC = 0.1 ± 0.05 s;
1000 cycles of 30 s on,
330 s off, at 85 °C
ΔC/C: ± 25 %
tan δ≤1.5 × spec. limit
I
L5
≤ spec. limit