Alternistor Triacs
Data Sheets
200
Notes:
2.0
1.5
1.0
.5
1) Gate control may be lost during and
immediately following surge current
interval
2) Overload may not be repeated until
junction temperature has returned
to steady state rated value.
10 A to 12 A Devices
8 A Devices
120
100
80
60
50
40
8 A TO-251
and TO-252
30
20
6 A Devices
6 A TO-251
and TO-252
10
8
6
5
4
3
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
2
RMS ON-STATE CURRENT [I
]: Maximum
Rated Value at Specified Case Temperature
0
T(RMS)
-65 -40 -15
+25
+65
+125
1
1
2
3
4
5
6
8
10
20
30 40 60 80 100
200 300
600 1000
Case Temperature (T ) – ˚C
C
Surge Current Duration – Full Cycles
Figure E4.7 Normalized DC Gate Trigger Voltage for all Quadrants
versus Case Temperature
Figure E4.10 Peak Surge Current versus Surge Current Duration
(6 A to 12 A)
1000
4.0
3.0
2.0
1.0
SUPPLY FREQUENCY: 60Hz Sinusoidal
LOAD: Resistive
RMS ON-STATE CURRENT [I
]: Maximum
T(RMS)
400
Rated Value at Specified Case Temperature
300
250
200
40 A Devices
35 A Devices
100
80
30 A Devices
60
50
40
Notes:
1) Gate control may be lost during and
immediately following surge current
interval.
2) Overload may not be repeated until
junction temperature has returned to
steady-state rated value.
25 A Devices
16 A Devices
30
20
10
0
-65
-40
-15
+25
+65
+125
1
10
100
1000
Case Temperature (T ) – ˚C
C
Surge Current Duration – Full Cycles
Figure E4.8 Normalized DC Gate Trigger Current for all Quadrants
versus Case Temperature
Figure E4.11 Peak Surge Current versus Surge Current Duration
(16 A to 40 A)
4.0
10
8
INITIAL ON-STATE CURRENT
= 400 mA dc 16 A to 40 A Devices
= 100 mA dc 6 to 12A Devices
3.0
I
= 80 to 100 mA
GT
6
4
2
0
2.0
1.0
0
I
= 50 mA
GT
I
= 10 mA to 35 mA
GT
0
100
200
300
400
500
-65 -40 -15
+25
+65
+125
DC Gate Trigger Current (
) – mA
I
GT
Case Temperature (T ) – ˚C
C
Figure E4.9 Normalized DC Holding Current versus Case Temperature
Figure E4.12 Turn-on Time versus Gate Trigger Current (Typical)
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E4 - 8
©2002 Teccor Electronics
Thyristor Product Catalog
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