152 CME

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RIPPLE CURRENT AND USEFUL LIFE

Table 7

Note

• Multiplier of useful life code: CCC206

Fig. 5 - Multiplier of useful life as a function of ambient temperature and ripple current load

Table 8

ENDURANCE TEST DURATION AND USEFUL LIFE

LIFE CODE

ENDURANCE AT 105 °C

(h)

USEFUL LIFE AT 105 °C

(h)

USEFUL LIFE AT 40 °C

1.8 x IR APPLIED (h)

L1

1000

1500

75 000

L2

2500

3000

150 000

L3

3000

4000

200 000

L4

4000

5000

250 000

L5

5000

6000

300 000

MULTIPLIER OF RIPPLE CURRENT (IR) AS A FUNCTION OF FREQUENCY

UR

(V)

FREQUENCY (Hz)

50

100

300

1000

3000

10 000

 30 000

400

0.75

1.00

1.30

1.60

1.90

2.20

2.50

450

0.75

1.00

1.30

1.60

1.90

2.20

2.50

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

Lifetime multiplier

IA

IR

CCC206

T

amb (°C)

I

A = Actual ripple current at 100 Hz

I

R = Rated ripple current at 100 Hz, 105 °C