Thyristor Product Catalog
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TO-220AB
THERMOTAB
TO-218AC
TO-218X
MT2
MT1
FASTPAK
G
Alternistor Triacs
(6 – 40 Amps)
4
General Description
Teccor offers bidirectional alternistors with current ratings from
6 to 40 amperes and voltages from 200 to 1000 volts as part of
Teccor's broad line of thyristors. Teccor's alternistor has been
specifically designed for applications that switch highly inductive
loads. A special chip offers the same performance as two thyris-
tors (SCRs) wired inverse parallel (back-to-back), providing bet-
ter turn-off behavior than a standard triac. An alternistor may be
triggered from a blocking to conduction state for either polarity of
applied AC voltage with operating modes in Quadrants I, II, and
III.
This new chip construction provides two electrically separate
SCR structures, providing enhanced dv/dt characteristics while
retaining the advantages of a single chip device.
All alternistors have glass-passivated junctions to ensure long
term reliability and parameter stability. Teccor's glass offers a reli-
able barrier against junction contamination.
These alternistors are offered in TO-218X, TO-218AC, FastPak,
and TO-220AB packages. Teccor's TO-218X package has been
designed for heavy, steady power-handling capability. It features
large eyelet terminals for ease of soldering heavy gauge hook-up
wire. All the isolated packages have a standard isolation voltage
rating of 2500V
RMS
.
Variations of devices covered in this data sheet are available for
custom design applications. Please consult factory for further
information.
Features
•
•
•
•
•
High surge current capability
Glass-passivated junctions
2500VAC isolation for “L,” “J,” “P,” and “K”
High commutating dv/dt
High static dv/dt
Teccor Electronics
+1 972-580-7777
http://www.teccor.com
4-1
Thyristor Product Catalog
Alternistor Triacs
V
TM
I
H
I
GTM
P
GM
P
G(AV)
I
TSM
Peak One
Cycle
Surge
(9) (13)
dv/dt (c)
Critical Rate-of-Rise
of Commutation Voltage
at Rated
V
DRM
and I
T(RMS)
Commutating di/dt = 0.54
Rated I
T(RMS)
/ms
Gate Unenergized
(1) (4) (13)
dv/dt
tgt
I
2
t
RMS Surge
(Non-
Repetitive)
On-State
Current for
period of
8.3 ms
for Fusing
Amps
2
Sec
26.5
26.5
26.5
26.5
26.5
26.5
41
41
41
41
41
41
60
60
60
60
60
60
60
60
60
60
60
60
di/dt
Maximum
Rate -of-
Change
of On-State
Current
(19)
Holding Peak Gate Peak Gate
Average
Peak
Current
Trigger
Power
Gate Power
On-State
(DC)
Current Dissipation Dissipation
Voltage at
(14)
(14)
Max Rated Gate Open
I
GT
≤
I
GTM
RMS Current (1) (8) (12)
T
C
= 25°C
(1) (5)
Amps
Volts
MAX
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
mAmps
MAX
35
35
35
35
35
35
35
35
35
35
35
35
50
50
50
50
50
50
50
50
50
50
50
50
1.6
1.6
1.6
1.6
1.6
1.6
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
18
18
18
18
18
18
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
80
80
80
80
80
80
100
100
100
100
100
100
120
120
120
120
120
120
120
120
120
120
120
120
65
65
65
65
65
65
83
83
83
83
83
83
110
110
110
110
110
110
110
110
110
110
110
110
Amps
Watts
Watts
60Hz 50Hz
Critical
Gate
Rate-of-Rise of Controlled
Off-State
Turn-On
Voltage at
Time
Rated V
DRM
I
GT
= 300mA
Gate Open
0.1µs Rise
(1)
Time
(10)
Volts/µSec
T
C
=
100°C
750
575
500
425
375
300
750
575
500
425
375
300
1150
1000
925
850
775
650
1150
1000
925
850
775
650
T
C
=
125°C
600
450
400
350
300
250
600
450
400
350
300
250
1000
750
700
650
600
500
1000
750
700
650
600
500
µSec
TYP
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Volts/µSec
MIN
20
20
20
20
20
20
25
25
25
25
25
25
30
30
30
30
30
30
30
30
30
30
30
30
Amps/µSec
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
MIN
See General Notes and Electrical Specification Notes on page 6.
Teccor Electronics
+1 972-580-7777
http://www.teccor.com
4-3
Thyristor Product Catalog
Alternistor Triacs
V
TM
I
H
I
GTM
P
GM
P
G(AV)
I
TSM
Peak One
Cycle
Surge
(9) (13)
dv/dt (c)
Critical Rate-of-Rise
of Commutation Voltage
at Rated
V
DRM
and I
T(RMS)
Commutating di/dt = 0.54
Rated I
T(RMS)
/ms
Gate Unenergized
(1) (4) (13)
dv/dt
tgt
I
2
t
RMS Surge
(Non-
Repetitive)
On-State
Current for
period of
8.3 ms
for Fusing
Amps
2
Sec
166
166
166
166
166
166
166
166
166
166
166
166
166
166
166
166
166
166
259
259
259
259
259
259
664
664
664
664
664
664
di/dt
Maximum
Rate -of-
Change
of On-State
Current
(19)
Holding Peak Gate Peak Gate
Average
Peak
Current
Trigger
Power
Gate Power
On-State
(DC)
Current Dissipation Dissipation
Voltage at
(14)
(14)
Max Rated Gate Open
I
GT
≤
I
GTM
RMS Current (1) (8) (12)
T
C
= 25°C
(1) (5)
Amps
Volts
MAX
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
mAmps
MAX
35
35
35
35
35
35
50
50
50
50
50
50
70
70
70
70
70
70
100
100
100
100
100
100
120
120
120
120
120
120
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
4.0
4.0
4.0
4.0
4.0
4.0
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
40
40
40
40
40
40
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
0.8
0.8
0.8
0.8
0.8
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
250
250
250
250
250
250
400
400
400
400
400
400
167
167
167
167
167
167
167
167
167
167
167
167
167
167
167
167
167
167
208
208
208
208
208
208
335
335
335
335
335
335
Amps
Watts
Watts
60Hz 50Hz
Critical
Gate
Rate-of-Rise of Controlled
Off-State
Turn-On
Voltage at
Time
Rated V
DRM
I
GT
= 300mA
Gate Open
0.1µs Rise
(1)
Time
(10)
Volts/µSec
T
C
=
100°C
500
400
300
300
275
275
650
600
550
500
425
425
875
875
800
800
700
700
875
875
800
800
700
700
1100
1100
1000
1000
900
900
T
C
=
125°C
400
350
250
250
200
200
500
475
425
400
350
350
600
600
520
520
475
475
600
600
520
520
475
475
700
700
625
625
575
575
µSec
TYP
3
3
3
3
3
3
3
3
3
3
3
3
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Volts/µSec
MIN
20
20
20
20
20
20
25
25
25
25
25
25
30
30
30
30
30
30
30
30
30
30
30
30
50
50
50
50
50
50
Amps/µSec
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
150
150
150
150
150
150
MIN
See General Notes and Electrical Specification Notes on page 6.
Teccor Electronics
+1 972-580-7777
http://www.teccor.com
4-5
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