038 RSU
Aluminum Capacitors
Radial Standard Ultra Miniature
Vishay BCcomponents
RIPPLE CURRENT AND USEFUL LIFE
CCC205
3.3
3.2
3.1
3.0
I
A
I
R
2.8
2.6
2.4
2.2
2.0
lifetime multiplier
1.8
1.6
1.4
1.2
IA = actual ripple current at 100 Hz
I
R = rated ripple current at 100 Hz, 85 °C
(1)
1.0
0.8
0.5
0.0
Useful life at 85 °C and IR applied:
case Ø D ≤ 8 mm: 2500 h
case Ø D ≥ 10 mm: 3500 h
40
50
60
70
80
90
100
Tamb (°C)
Fig.8 Multiplier of useful life as afunction of ambient temperature and ripple current load
Table 3
MULTIPLIER OF RIPPLE CURRENT (IR) AS A FUNCTION OF FREQUENCY
I
R MULTIPLIER
FREQUENCY
(Hz)
CR < 100 µF
CR = 100 to 1000 µF
CR > 1000 µF
50
100
500
0.70
1.00
1.30
1.40
1.50
0.75
1.00
1.20
1.30
1.35
0.80
1.00
1.10
1.12
1.15
1000
≥ 10 000
Table 4
TEST PROCEDURES AND REQUIREMENTS
TEST
PROCEDURE
(quick reference)
amb = 85 °C; UR applied;
REQUIREMENTS
NAME OF TEST
REFERENCE
ΔC/C: 20 ꢀ
IEC 60384-4/
T
Endurance
EN130300
subclause 4.13
case Ø ≤ 8 mm: 2000 h
case Ø ≥ 10 mm: 3000 h
tan δ ≤ 2 x spec. limit
IL5 ≤ spec. limit
ΔC/C: 50 ꢀ
tan δ ≤ 3 x spec. limit
IL5 ≤ spec. limit
no short or open circuit
Tamb = 85 °C; UR and IR applied;
case Ø ≤ 8 mm: 2500 h
case Ø ≥ 10 mm: 3500 h
CECC 30301
subclause 1.8.1
Useful life
total failure percentage: ≤ 1 ꢀ
ΔC/C: 20 ꢀ
tan δ ≤ 2 x spec. limit
IL5 ≤ 3 x spec. limit
Shelf life
(storage at high
temperature)
IEC 60384-4/
EN130300
subclause 4.17
Tamb = 85 °C; no voltage applied; 1000 h
after test: UR to be applied for 30 min, 24 to 48 h
before measurement
from source of 1.15 x UR:
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 x spec. limit
IL5 ≤ spec. limit
IEC 60384-4/
EN130300
subclause 4.14
Surge
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Document Number: 28309
Revision: 05-May-08