
2 - 2
Fig. 1: Forward characteristics
Instantaneous forward current IF as a function of instantaneous forward
voltage drop VF for junction temperature T(vj) = 25°C and T(vj) = 150°C
a = Mean value characteristic
b = Limit value characteristic
Fig. 2: Characteristics of maximum permissible current
The curves show the non repetitive peak one cycle surge forward
current IFSM as a function of time
t
and serve for rating protective
devices.
a = Initial state T(vj) = 45°C
b = Initial state T(vj) = 150°C
Fig. 3: Power loss
Non repetitive peak reverse power loss PRSM as a function of time
t
,
T(vj) = 150°C
Fig. 4: Load diagramm
Mean forward current IF(AV) of one module for a sine half wave for various
cooling modes as a function of the cooling medium temperature Tamb for a
resistive load (horizontal mounting).
Cooling modes
1 = air self cooling without cooling plate
2 = air self cooling with cooling plate
3 = forced air cooling without cooling plate
4 = forced air cooling with cooling plate
5 = oil cooling without cooling plate
6 = oil cooling with cooling plate
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F6
0 30 60 90 120 150
0
1
2
3
4
5
°C
TA
A
IF(AV)
3,0 3,5 4,0 4,5 5,0 5,5 6,0 6,5
0
2
4
6
8
10
V
VF
A
IF
10-3 10-2 10-1 100101
0
20
40
60
80
100
120
s
t
A
IFSM
10-6 10-5 10-4 10-3 10-2
101
102
103
104
s
t
W
PRSM
a
T(vj) =150°C
T(vj) = 25°C
b
a
b
180°
IFAV
5+6
4
3
2
1
UGE 1112 AY4