Data Sheets
Sensitive Triacs
Maximum Allowable Case Temperature (T
C
) - ˚C
110
105
100
95
90
85
80
75
70
65
60
0
1
2
3
4
5
6
7
8
4 A TYPE 2 and 4 TO-202
4 A TO-251
4 A TYPE 1 and 3 TO-202
4 A TO-220 (Isolated)
4 A TO-252
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360˚
CASE TEMPERATURE: Measured as
shown on Dimensional Drawings
2.0
6A
-22
0(
Iso
lat
ed
V
GT
TO
8A
8A
)
TO
-25
1a
nd
TO
TO
-22
-25
0(
2
Iso
late
d)
V
GT
(T
C
= 25 ˚C)
1.5
1.0
6 A TO-251
6 A TO-252
Ratio of
.5
0
-65
-40
-15
+25
+65
+110 +125
RMS On-State Current [I
T(RMS)
] - Amps
Case Temperature (T
C
) - ˚ C
Figure E1.3 Maximum Allowable Case Temperature versus
On-state Current (4 A, 6 A, and 8 A)
Figure E1.6 Normalized DC Gate Trigger Voltage for All Quadrants
versus Case Temperature
20
18
T
C
= 25
˚
C
4.0
Positive or Negative Instantaneous
On-state Current (i
T
) - Amps
16
14
12
10
8
6
4
2
0
0
0.5
0.8
1.0
1.2
1.4
1.6
1.8
0.8 A
4A
1A
6 A and 8 A
I
GT
(T = 25 ˚C)
C
3.0
I
GT
2.0
Ratio of
1.0
0
-65
-40
-15
+25
+65
+110 +125
Positive or Negative Instantaneous
On-state Voltage (v
T
) - Volts
Case Temperature (T
C
) - ˚C
Figure E1.4 On-state Current versus On-state Voltage (Typical)
Figure E1.7 Normalized DC Gate Trigger Current for All Quadrants
versus Case Temperature
7.0
4.0
T
C
= 25 ˚C
6.0
I
H
(T
C
= 25
˚
C)
3.0
Turn-On Time (t
gt
) -
µSec
INITIAL ON-STATE CURRENT
= 100 mA (DC) 0.8 - 4 A Devices
= 200 mA (DC) 6 - 8 A Devices
I
GT
= 5 mA MAX
5.0
I
GT
= 10 mA MAX
I
H
4.0
2.0
I
GT
= 20 mA
MAX
Ratio of
3.0
I
GT
= 3 mA MAX
1.0
2.0
1.0
0
-65
-40
-15
+25
+65
+110 +125
0
1
2
3
4
5 6
8
10
20
30
40
60 80 100
Case Temperature (T
C
) -
˚
C
DC Gate Trigger Current (I
GT
) - mA
Figure E1.5 Normalized DC Holding Current versus Case Temperature
Figure E1.8 Turn-on Time versus Gate Trigger Current (Typical)
©2004 Littelfuse LP
Thyristor Product Catalog
E1 - 7
http://www.teccor.com
+1 972-580-7777
TECCOR [ TECCOR ELECTRONICS ]
