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B43457B5228M000 Datasheet(PDF) 7 Page - EPCOS |
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B43457B5228M000 Datasheet(HTML) 7 Page - EPCOS |
7 / 9 page 123 10/02 Standard – 85 °C B43455 / B43457 Useful life depending on ambient temperature TA (for natural cooling) and versus temperature of case base TB (for base cooling) under ripple current operating conditions1) Frequency factor of permissible ripple current I~ versus frequency f 0 40 50 60 70 80 90 AB ; ˚C TT 100 3,0 2,0 1,5 1,0 0,5 B43455/457 KAL0526-9 (B) R ~ ΙΙ ; ~ ~ ΙΙ~ R 1) The ripple current refers to I~R for natural cooling or to I~R(B) for base cooling, respectively. Refer to page 40 for an explanation on how to interpret the useful life graphs. KAL0394-V 0,8 f 0,9 1,0 1,1 1,2 1,3 1,5 10 2 2 10 3 5Hz a b c 5 B43455/457 Ι 100 Hz f ~ Ι ~ d (mm) 51,6 64,3 76,9 91,0 Curve c bac |
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