8CLJQ045
4 www.irf.com
Fig. 5 - Max. Allowable Case Temperature Vs.
Average Forward Current
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1 2
J DM thJC C
P
t
t
DM
1
2
t , Rectangular Pulse Duration (sec)
Thermal Response (Z )
1
thJC
0.01
0.02
0.05
0.10
0.20
D = 0.50
SINGLE PULSE
(THERMAL RESPONSE)
0
20
40
60
80
100
120
140
160
180
024681012
DC
Allowable Case Temperature - (°C)
F(AV)
Average Forward Current - I (A)
thJC
8CLJQ045
R (DC) = 3.73°C/W
8CLQ045
R
thJC
(DC) = 1.86°C/W
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TAC Fax: (310) 252-7903
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Data and specifications subject to change without notice. 07/2004
