DF685
500
Measured under pulse conditions
400
Instantaneous forward current I
F
- (A)
300
T
j
= 150˚C
200
T
j
= 25˚C
100
0
1.0
1.5
2.0
2.5
3.0
Instantaneous forward voltage V
F
- (V)
Fig. 2 Maximum (limit) forward characteristics
500
Current
waveform
V
FR
400
Transient forward votage V
FP
- (V)
Voltage
waveform
δy
δx
di =
δy
dt
δx
T
j
= 125˚C limit
300
T
j
= 25˚C limit
200
100
0
0
500
1000
1500
2000
2500
Rate of rise of forward current dI
F
/dt - (A/µs)
Fig. 3 Transient forward voltage vs rate of rise of forward current
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