Datasheet

4
8ETH06, 8ETH06S, 8ETH06-1, 8ETH06FP
Bulletin PD-20746 rev. D 03/03
www.irf.com
Fig. 5 - Max. Thermal Impedance Z
thJC
Characteristics (FULLPACK)
t
1
, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z
thJC
(°C/W)
Fig. 6 - Max. Allowable Case Temperature
Vs. Average Forward Current
Average Forward Current - IF
(AV)
(A)
Allowable Case Temperature (°C)
Fig. 7 - Max. Allowable Case Temperature
Vs. Average Forward Current (FULLPACK)
Fig. 8 - Forward Power Loss Characteristics
Average Forward Current - IF
(AV)
(A)
Average Forward Current - IF
(AV)
(A)
Allowable Case Temperature (°C)
Average Power Loss ( Watts )
(3) 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. 8);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D);
I
R
@ V
R1
= rated V
R
120
130
140
150
160
170
180
0 2 4 6 8 10 12
DC
Square wave (D = 0.50)
Rated Vr applied
see note (3)
0
2
4
6
8
10
12
14
16
18
20
024681012
DC
RMS Limit
D = 0.01
D = 0.02
D = 0.05
D = 0.1
D = 0.2
D = 0.5
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1
Single Pulse
(Thermal Resistance)
D = 0.50
D = 0.20
D = 0.10
D = 0.05
D = 0.02
D = 0.01
2
t
1
t
P
DM
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
80
100
120
140
160
180
02468101214
DC
see note (3)
Square wave (D = 0.50)
Rated Vr applied