70CRU04PBF_11 Datasheet, PDF (4/7 Pages) Vishay Siliconix – Ultrafast Rectifier, 2 x 35 A FRED Pt

VS-70CRU04PbF
Vishay Semiconductors Ultrafast Rectifier, 2 x 35 A FRED Pt^®
180
170
160
DC
150
140
130
Square wave (D = 0.50)
120 _{Rated VR applied}
110 _{See note (1)}
100
0
5 10 15 20 25 30 35 40
I_F(AV) - Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
40
35
RMS limit
30
25
20
D = 0.01
D = 0.02
15
D = 0.05
D = 0.10
10
D = 0.20
D = 0.50
5
DC
0
0
5 10 15 20 25 30 35
I_F(AV) - Average Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics
Note
(1) _{Formula used: TC = TJ - (Pd + PdREV) x RthJC;}
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 = Rated V_R
150
140
I_F = 35 A
V_RR = 200 V
130
120
T_J = 125 °C
110
100
90
80
T_J = 25 °C
70
60
50
100
1000
dI_F/dt (A/µs)
Fig. 7 - Typical Reverse Recovery Time vs. dI_F/dt
2500
2000
I_F = 35 A
V_RR = 200 V
1500
1000
500
T_J = 125 °C
T_J = 25 °C
0
100
1000
dI_F/dt (A/µs)
Fig. 8 - Typical Stored Charge vs. dI_F/dt
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Revision: 09-Feb-11