UGE 1112 AY4
10
A
A
120
I F
8
a
b
I FSM
100
6
T(vj) = 150°C
T(vj) = 25°C
80
4
2
60
40
20
a
b
0
3,0 3,5 4,0 4,5 5,0 5,5 6,0 6,5 V
0
10 -3
10 -2
10 -1
10 0 s
10 1
V F
Fig. 1: Forward characteristics
Instantaneous forward current I F as a function of instantaneous forward
voltage drop V F for junction temperature T (vj) = 25°C and T (vj) = 150°C
a = Mean value characteristic
b = Limit value characteristic
10 4
W
t
Fig. 2: Characteristics of maximum permissible current
The curves show the non repetitive peak one cycle surge forward
current I FSM 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
5
A
P RSM
10 3
I F(AV) 4
5+6
4
180°
I FAV
F6
10 2
3
2
1
3
2
1
10 1
10 -6
10 -5
10 -4
10 -3 s
t
10 -2
0
0
30
60
90
T A
120
150 °C
Fig. 3: Power loss
Non repetitive peak reverse power loss P RSM as a function of time t,
T (vj) = 150°C
Fig. 4: Load diagramm
Mean forward current I F(AV) of one module for a sine half wave for various
cooling modes as a function of the cooling medium temperature T amb for a
resistive load (horizontal mounting).
Cooling modes
? 2003 IXYS All rights reserved
1 = air self cooling
2 = air self cooling
3 = forced air cooling
4 = forced air cooling
5 = oil cooling
6 = oil cooling
without
with
without
with
without
with
cooling plate
cooling plate
cooling plate
cooling plate
cooling plate
cooling plate
2 - 2
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