
500
Measured under pulse
conditions
400
Tj = 25˚C
300
Tj = 150˚C
200
100
0
1.0
1.25
1.5
1.75
2.0
Instantaneous forward voltage VF - (V)
Fig.2 Maximum (limit) forward characteristics
500
VFR
400
δy
300
δx
Current
waveform
Voltage
waveform
di = δy
dt δx
200
Tj = 125˚C limit
Tj = 25˚C limit
100
0
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
DF754
5/9