30CTH02, 30CTH02S, 30CTH02-1, 30CTH02FP
Bulletin PD-20768 rev. C
09/04
10
(°C/W)
Thermal Impedance Z
1
D = 0.50
D = 0.20
D = 0.10
D = 0.05
D = 0.02
D = 0.01
thJC
P
DM
t1
t2
0.1
Single Pulse
(Thermal Resistance)
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.01
0.00001
0.0001
0.001
0.01
0.1
1
10
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 5 - Max. Thermal Impedance Z
thJC
Characteristics (FULLPACK)
180
Allowable Case Temperature (°C)
Allowable Case Temperature (°C)
180
170
160
150
140
130
120
Square wave (D = 0.50)
Rated Vr applied
170
DC
160
Square wave (D = 0.50)
DC
150
Rated Vr applied
see note (2)
110
see note (2)
100
0
5
10
15
20
F(AV)
140
0
5
10
15
20
F(AV)
25
25
(A)
Average Forward Current - I
(A)
Average Forward Current - I
Fig. 6 - Max. Allowable Case Temperature
Vs. Average Forward Current
Fig. 7 - Max. Allowable Case Temperature
Vs. Average Forward Current (FULLPACK)
25
Average Power Loss ( Watts )
20
15
10
5
0
0
DC
RMS Limit
D = 0.01
D = 0.02
D = 0.05
D = 0.1
D = 0.2
D = 0.5
(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. 8);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D);
I
R
@ V
R1
= rated V
R
Average Forward Current - I
F
(AV)
(A)
5
10
15
20
25
Fig. 8 - Forward Power Loss Characteristics
4
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