DS501ST
CURVES
800
700
600
500
400
300
200
100
0
3000
dc
1/2 wave
3 phase
6 phase
2500
2000
1500
1000
500
Tj = 175ºC
Tj = 25ºC
0
0
100
200
300
400
500
600
700
800
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
Mean on-state current, IT(AV) - (A)
Instantaneous forward voltage, VF - (V)
Fig.2 Maximum (limit) forward characteristics
Fig.3 Power dissipation curves
1.0
0.1
450
I2t = Î2 x t
2
400
350
300
250
200
150
Anode side cooled
Double side cooled
20
15
10
5
I2t
Conduction Effective thermal resistance
0.01
Junction to case ˚C/W
Double side Single side
d.c.
0.070
0.080
0.105
0.1425
0.140
0.150
0.175
0.2125
Halfwave
3 phase 120˚
6 phase 60˚
0.001
0
0.001
0.01
0.1
Time - (s)
1
10
1
10
1
2 3 5 10 20 50
ms
Cycles at 50Hz
Duration
Fig.4 Surge (non-repetitive) forward current vs time (with
50% VRRM, Tcase = 175˚C)
Fig.5 Maximum (limit) transient thermal impedance -
junction to case - (˚C/W)
4/5
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