10WQ045FNPbF
Bulletin PD-21086 rev. B 08/06
180
Allowable Case Temperature (°C)
Average Power Loss (Watts)
10
8
6
170
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS Limit
160
4
DC
150
Square wave (D = 0.50)
80% Rated Vr applied
2
0
see note (2)
140
0
2
4
6
8
10 12 14 16
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
0
3
6
9
12
15
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
Non-Repetitive Surge Current - I
FSM
(A)
1000
100
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
10
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
4
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