Datasheet

© 2000 IXYS All rights reserved
3 - 3
Fig. 3 Surge overload current per chip
I
FSM
: Crest value, t: duration
Fig. 5 Max. forward current at
heatsink temperature
Fig. 4 I
2
t versus time (1-10 ms)
per chip
Fig. 6 Power dissipation versus direct output current and ambient temperature
Fig. 7 Transient thermal impedance junction to heatsink per chip
Constants for Z
thJK
calculation:
iR
thi
(K/W) t
i
(s)
1 0.3441 0.0344
2 1.1554 0.12
3 1.5005 0.5
VHF 28