VS-UFB250FA60 Datasheet, PDF (4/7 Pages) Vishay Siliconix – Fully insulated package

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180
160
140
DC
120
100
80
60
40
Square wave (D = 0.5)
80 % rated V_R applied
20
0
0
50 100 150 200 250 300
Current Rating (A)
Fig. 5 - Maximum Current Rating (Per Leg)
160
140
120
RMS limit
100
80
D = 0.20
60
D = 0.25
D = 0.33
40
DC
D = 0.50
D = 0.75
20
0
0 20 40 60 80 100 120 140 160
Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics
VS-UFB250FA60
Vishay Semiconductors
500
450
T_J = 150 °C
400
V_R = 200 V
I_F = 50 A
350
300
250
200
150
T_J = 25 °C
100
50
100
1000
dI_F/dt (A/µs)
Fig. 7 - Typical Reverse Recovery Time vs. dI_F/dt
14 000
12 000
10 000
V_R = 200 V
I_F = 50 A
T_J = 150 °C
8000
6000
4000
2000
T_J = 25 °C
0
100
dI_F/dt (A/µs)
Fig. 8 - Typical Recovery Charge vs. dI_F/dt
1000
100
90
V_R = 200 V
80
I_F = 50 A
70
60
T_J = 150 °C
50
40
T_J = 25 °C
30
20
10
0
100
1000
dI_F/dt (A/µs)
Fig. 9 - Typical Recovery Current vs. dI_F/dt
Note
(1) _{Formula used: TC = TJ - (Pd + PdREV) x RthJC;ï€} 
Pd = Forward power loss = I_F(AV) x V_FM at (I_F(AV)/D) (see fig. 6);
Pd_REV = Inverse power loss = V_R1 x I_R (1 - D); I_R at V_R1 = 80 % rated V_R
Revision: 31-May-16
4
Document Number: 93626
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