
FT08...H
HIGH COMMUTATION TRIAC
1E+0
1E-1
1E-2
K=[Zth / Rth]
1E-3 1E-2
1E-1 1E+0 1E+1 1E+2 5E+2
tp (s)
Fig. 1: Maximum power dissipation versus
RMS on-state current (full cycle)
Fig. 2: RMS on-state current versus case
temperature (full cycle)
Fig. 3: : Relative variation of thermal
impedance versus pulse duration
Fig. 5: Surge peak on-state current versus
number of cycles
Fig. 4: On-state characteristics (maximum
values)
Zth(j-c)
Zth(j-a)
Fig. 6: Non repetitive surge peak on-state
current for a sinusoidal pulse with width:
tp < 10 ms, and corresponding value of I2t.
ITSM(A).I2t (A2s)
tp(ms)
Tj initial = 25 C
10
1000
100
10
I2 t
ITSM
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
IT(RMS)(A)
025
50
75
100
125
P (W)
Tc (C)
IT(RMS)(A)
0
2
468
0
2
4
6
8
10
0
2
4
6
8
10
135
7
1
3
5
7
9
100
10
1
ITM (A)
VTM (V)
4.5
Tj max
Vto = 0.85V
Rt = 35mW
Tj max
Tj = 25 C
1
10
100
1000
90
80
60
40
20
0
I TSM
Number of cycles
Non repetitive
Tj initial = 25 C
t=20m
s
One cycle
Jan - 06