20CTH03PBF Datasheet, PDF (4/7 Pages) International Rectifier – Hyperfast Rectifier

20CTH03PbF/20CTH03FPPbF
Vishay High Power Products ^{Hyperfast Rectifier,}
2 x 10 A FRED Pt^TM
10
1
P
DM
0.1
0.01
0.00001
Single pulse
(thermal resistance)
0.0001
D = 0.50
D = 0.20
D = 0.10
D = 0.05
D = 0.02
D = 0.01
0.001
0.01
t
1
t
2
Notes:
1. Duty factor D = t₁/t_{2 .}
2. Peak T_J = P_DM x Z_thJC + T_C
0.1
1
.
10
t₁ - Rectangular Pulse Duration (s)
Fig. 5 - Maximum Thermal Impedance Z_thJC Characteristics (FULL-PAK)
180
170
DC
160 Square wave (D = 0.50)
Rated V_R applied
150
See note (1)
140
0 2 4 6 8 10 12 14 16
I_F(AV) - Average Forward Current (A)
Fig. 6 - Maximum Allowable Case Temperature vs.
Average Forward Current
180
170
160
150
DC
140
130
Square wave (D = 0.50)
120 _{Rated VR applied}
110 See note (1)
100
0 2 4 6 8 10 12 14 16
I_F(AV) - Average Forward Current (A)
Fig. 7 - Maximum Allowable Case Temperature vs.
Average Forward Current (FULL-PAK)
20
16
RMS limit
12
8
D = 0.01
D = 0.02
D = 0.05
D = 0.1
4
DC
D = 0.2
D = 0.5
0
0 2 4 6 8 10 12 14 16
I_F(AV) - Average Forward Current (A)
Fig. 8 - 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. 8);
Pd_REV = Inverse power loss = V_R1 x I_R (1 - D); I_R at V_R1 = Rated V_R
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4
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Document Number: 94010
Revision: 11-Sep-08