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Document Number: 28334

232

Revision: 30-May-08

118 AHT

Vishay BCcomponents

Aluminum Capacitors

Axial High Temperature

RIPPLE CURRENT AND USEFUL LIFE

Table 3

3.8

3.7

3.6

3.5

3.4

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

110

Tamb (C)

o

120

130

MBC242

3.9

4.0

4.1

4.2

4.3

lifetime multiplier

(1)

I A

R

I

MBC242

Fig.19 Multiplier of useful life as a function of ambient temperature and ripple current load

(1)

Useful life at 125

°C and I

case Ø D x L = 6.5 x 18 to 10 x 25 mm: 4000 hours

case Ø D x L = 10 x 30 to 21 x 38 mm: 8000 hours

FREQUENCY

(Hz)

50

0.95

0.90

0.85

100

1.00

1.00

1.00

300

1.07

1.12

1.20

1000

1.12

1.20

1.30

3000

1.15

1.25

1.35

≥ 10 000

1.20

1.30

1.40