Document Number: 28346

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Revision: 14-Aug-08

9

051/053 PEC-PW

Aluminum Capacitors

Power Economic Printed Wiring

Vishay BCcomponents

RIPPLE CURRENT AND USEFUL LIFE

Table 4

Table 5

2.4

2.3

2.2

2.1

2.0

1.9

I

A

I

R

1.8

1.7

1.5

1.6

1.4

1.3

1.2

1.1

1.0

0.8

0.5

0.0

MGA453

life multiplier

40

50

60

70

8090

T

(1)

Fig.25 Multiplier of useful life as a function of ambient

temperature and ripple current load.

(1)

Useful life at 85

°C and I

FREQUENCY (Hz)

50

0.83

100

1.00

200

1.10

400

1.15

1000

1.19

≥ 2000

1.20

TEST PROCEDURES AND REQUIREMENTS

TEST

PROCEDURE

(quick reference)

REQUIREMENTS

NAME OF TEST

REFERENCE

Endurance

IEC 60384-4/

EN130300

subclause 4.13

5000 hours

ESR

≤ 1.3 x spec. limit

Z

≤ 2 x spec. limit

Useful life

CECC 30301

subclause 1.8.1

12 000 hours

ESR

≤ 3 x spec. limit

Z

≤ 3 x spec. limit

no short or open circuit,

no visible damage

total failure percentage:

Shelf life

(storage at

high temperature)

IEC 60384-4/

EN130300

subclause 4.17

500 hours

24 hours to 48 hours before measurement

ΔC/C: ± 10 %

ESR

≤ 1.2 x spec. limit