81CNQ...A Series
Bulletin 20040 rev. A 09/01
180
Allowable Case Temperature (°C)
32
RthJC (DC) = 0.85 ˚C/W
Average Power Loss (Watts)
170
D = 0.08
28
D = 0.17
D = 0.25
24
D = 0.33
D = 0.50
20
160
DC
16
RMS Limit
12
8
4
DC
150
140
0
10
20
30
40
50
60
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
0
0
10
20
30
40
50
60
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
10000
Non-Repetitive Surge Current - I
FSM
(A)
1000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
H IG H-SPE ED
SW ITC H
FR EE-W H E EL
D IO D E
40H FL40 S02
V d = 25 V olt
D UT
IRFP460
Rg = 25 ohm
+
C URRE NT
M O N ITO R
Fig. 8 - Unclamped Inductive Test Circuit
4
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