VS-MURB820PBF Datasheet, PDF (4/9 Pages) Vishay Siliconix – Ultrafast Rectifier, 8 A FRED Pt®

VS-MURB820PbF, VS-MURB820-1PbF
Vishay High Power Products
Ultrafast Rectifier,
8 A FRED Pt^®
180
170
160
DC
Square wave (D = 0.50)
150
Rated V_R applied
140
See note (1)
130
0
3
6
9
12
I_F(AV) - Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
10
8
6
4
2
DC
RMS limit
D = 0.01
D = 0.02
D = 0.05
D = 0.10
D = 0.20
D = 0.50
0
0
3
6
9
12
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
50
V_R = 160 V
T_J = 125 °C
T_J = 25 °C
40
I_F = 16 A
I_F = 8 A
I_F = 4 A
30
20
10
100
1000
dI_F/dt (A/µs)
Fig. 7 - Typical Reverse Recovery Time vs. dI_F/dt
200
V_R = 160 V
T_J = 125 °C
160 ^TJ ^{= 25 °C}
I_F = 16 A
I_F = 8 A
120 _{IF = 4 A}
80
40
0
100
1000
dI_F/dt (A/µs)
Fig. 8 - Typical Stored Charge vs. dI_F/dt
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Document Number: 94081
Revision: 11-Mar-10