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Revision: 20-Apr-17

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Document Number: 28334

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RIPPLE CURRENT AND USEFUL LIFE

Table 4

Note

• Multiplier of useful life code: MBC242

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

ENDURANCE TEST DURATION AND USEFUL LIFE

NOMINAL CASE SIZE

Ø D x L

(mm)

ENDURANCE

AT 125 °C

(h)

USEFUL LIFE

AT 125 °C

(h)

6.5 x 18

2000

4000

8 x 18

2000

4000

10 x 18

2000

4000

10 x 25

2000

4000

10 x 30

3000

8000

12.5 x 30

3000

8000

15 x 30

3000

8000

18 x 30

3000

8000

18 x 38

3000

8000

21 x 38

3000

8000

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

T

120

130

3.9

4.0

4.1

4.2

4.3

Lifetime multiplier

I

A

I

R

MBC242

I

I

(1) Useful life at 125 °C and I

Case Ø D x L = 6.5 mm x 18 mm to

10 mm x 25 mm: 4000 h

Case Ø D x L = 10 mm x 30 mm to

21 mm x 38 mm: 8000 h

(1)