VS-VSKDS200 Datasheet, PDF (4/7 Pages) Vishay Siliconix – Low thermal resistance

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160
140
120
100
DC
80
60
Square Wave (d=0,5)
Rated V_R applied
40
20
0
0
50
100
150
200
250
I_F(AV) - Average Forward Current (A)
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
10 000
VS-VSKDS200/045
Vishay Semiconductors
120
100 D = 0.75
D = 0.50
D = 0.33
80 _{D = 0.25}
D = 0.20
60
RMS limit
40
DC
20
0
0
30
60
90
120
150
I_F(AV) - Average Forward Current (A)
Fig. 6 - Forward Power Loss Characteristics
At any rated load condition
and with rated V_RRM applied
following surge
1000
10
100
1000
10 000
t_p - Square Wave Pulse Duration (µs)
Fig. 7 - Maximum Non-Repetitive Surge Current
D.U.T.
Current
monitor
L
IRFP460
R_g = 25 Ω
High-speed
switch
Freewheel
diode
+ ^{Vd = 25 V}
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
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: 17-Jun-14
4
Document Number: 94966
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