VUO 35
I2t
Fig. 1 Forward current versus
voltage drop per diode
Fig. 2 Surge overload current per diode Fig. 3 I2t versus time (1-10 ms)
IFSM: Crest value. t: duration
per diode
Fig. 4 Power dissipation versus direct output current and ambient temperature
Fig. 6 Transient thermal impedance per diode
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Fig. 5 Maximum forward current at
case temperature
Constants for ZthJC calculation:
i
Rthi (K/W)
1
0.194
2
0.556
3
0.45
4
3.0
ti (s)
0.024
0.07
3.25
9.3
Constants for Z calculation:
thJK
i
Rthi (K/W)
1
0.194
2
0.556
3
0.45
4
3.0
5
0.6
ti (s)
0.024
0.07
3.25
9.3
28.0
2-2