20FQ Datasheet, PDF (4/4 Pages) International Rectifier – SCHOTTKY RECTIFIER

20FQ... Series
PD-2.033 rev. E 12/97
160
20FQ
150
R_thJC (DC) =1.25°C/W
140
130
DC
120
110
0
10 20 30 40 50
AverageForwardCurrent-IF(AV) (A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
10000
25
D = 0.08
D = 0.17
20 ^D=0.25
D = 0.33
D = 0.50
15 _RMSLimit
10
DC
5
0
0 5 10 15 20 25 30 35 40 45
AverageForwardCurrent-IF(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
DUT
C URRE NT
MONITOR
1000
At Any Rated Load Condition
And With Rated V_RRM Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t_p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
IRFP460
Rg = 25 ohm
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
+ ^{Vd = 25 Volt}
Fig. 8 - Unclamped Inductive Test Circuit
4
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