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