Manual

093 PMG-SI
Vishay BCcomponents
Aluminum Capacitors
Power Miniaturized General Purpose Snap-In
www.vishay.com For technical questions, contact: [e-mail]
Document Number: 28383
40 Revision: 04-Dec-09
RIPPLE CURRENT AND USEFUL LIFE
Table 4
Table 5
MULTIPLIER OF RIPPLE CURRENT (I
R
) AS A FUNCTION OF FREQUENCY
FREQUENCY
(Hz)
I
R
MULTIPLIER
400 V and 450 V
60 0.90
100 0.95
120 1.00
500 1.20
1000 1.30
≥ 10 000 1.40
TEST PROCEDURES AND REQUIREMENTS
TEST
PROCEDURE
(quick reference)
REQUIREMENTS
NAME OF TEST REFERENCE
Useful life CECC 30301
subclause 1.8.1
T
amb
=85°C; U
R
and I
R
applied:
2000 hours
ΔC/C: ± 30 %
ESR ≤ 3 x spec. limit
I
L5
≤ spec. limit
no short or open circuit,
no visible damage
total failure percentage: ≤ 3 %
Shelf life
(storage at
high temperature)
IEC 60384-4/
EN130300
subclause 4.17
T
amb
= 85 °C; no voltage applied;
500 hours
After test: U
R
to be applied for 30 minutes,
24 hours to 48 hours before measurement
ΔC/C: ± 20 %
ESR ≤ 2 x spec. limit
I
L5
≤ 1 x spec. limit
Fig.4 Multiplier of useful life as a function of ambient temperature and ripple current load
I
A
= actual ripple current at 120 Hz
I
R
= rated ripple current at 120 Hz and 85 °C
(1)
Useful life at 85 °C and I
R
applied: 2000 hours
T
amb
(°C)
Lifetime multiplier