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| B43750A4128M000 Datasheet, PDF (7/9 Pages) EPCOS – Capacitors with Screw Terminals | |||
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B43750 / B43770
Max. Ripple Current â 105 °C
Useful life
depending on temperature TA,TB,TT+B under ripple current operating conditions1)
5,0
Î~
Î ~R
;
Î
~R
Î~
(B;
T+B)
KAL0566-3
B43750/770
3,5
3,0
2,5
2,0
1,5
1,0
0,5
0
40
50
60
70
80
90
100 C 110
TA ;TB ;TT+B
Depending on the application, interpret the graph as follows:
1. Natural cooling
Use rated current I~R and ambient temperature TA.
2. Cooling of base
Use rated current I~R (B) and temperature of capacitor base TB.
3. Cooling of terminals and base
Use rated current I~R (T+B) and temperature of capacitor base TT+B.
Ensure that the temperature of the cooled terminals is lower than that of the case base.
Due to the current load capability of the contact elements, the following current limits must not be
exceeded, even if the frequency and temperature factors have been taken into account:
Capacitor diameter
64,3 mm
76,9 mm
91,0 mm
Capacitor base cooling
62 A
80 A
80 A
Terminal and capacitor base cooling
75 A
100 A
100 A
1) Refer to page 40 for an explanation on how to interpret the useful life graphs.
164 10/02
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