10BQ030
Bulletin PD-20708 rev. G 07/04
130
Allowable Case T
emperature - (°C)
DC
120
0.5
Average Power Los - (Watts)
s
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
RMSLimit
0.2
0.4
110
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
0.3
100
S
quare wave (D = 0.50)
80% Rated V
R
applied
see note (2)
0.1
90
0
0.4
0.8
1.2
1.6
0
0
0.4
0.8
1.2
1.6
Average Forward Current - I
F(AV)
(A)
Average Forward Current - I
F(AV)
(A)
Fig. 4 - Maximum Average Forward Current
Vs. Allowable Lead Temperature
Fig. 5 - Maximum Average Forward Dissipation
Vs. Average Forward Current
Non-R
epetitive S
urge Current - I
FSM
(A)
1000
100
At Any R
ated Load Condition
And With Rated V
RRM
Applied
Following S
urge
10
10
100
1000
10000
S
quare Wave Pulse Duration - t p (microsec)
Fig. 6 - Maximum Peak Surge Forward Current Vs. Pulse Duration
(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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