Triacs
Data Sheets
Maximum Allowable Ambient Temperature (T
A
) — ˚C
90
120
Positive or Negative Instantaneous
On-state Current (i
T
) – Amps
100
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360
˚
FREE AIR RATING – NO HEATSINK
80
70
60
50
40
30
20
15 A and 25 A
10
0
T
C
= 25 ˚C
80
TO-202 (TYPE 2 and 4)
TO-251
TO-220 Devices and
TO-202 (Type 1 and 3)
25 A and 35 A Fastpak
60
1 A TO-92
40
0.8 A TO-92
25
20
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
0.6
0.8
1.0
1.2
1.4
1.6
1.8
RMS On-state Current [I
T (RMS)
] — Amps
Positive or Negative Instantaneous On-state Voltage (v
T
) – Volts
Figure E2.7 Maximum Allowable Ambient Temperature versus
On-state Current
10
Figure E2.10 On-state Current versus On-state Voltage (Typical)
(15 A and 25 A)
4.0
Positive or Negative Instantaneous On-state Current (i
T
) – Amps
9
T
C
= 25 ˚C
8
7
6
5
4
3
2
0.8 A
I
GT
(T
C
= 25 ˚C)
3.0
I
GT
2.0
Ratio of
1.0
1A
1
0
0
0.6
0.8
1.0
1.2
1.4
1.6
1.8
-65
-40
-15
+25
+65
+125
Positive or Negative Instantaneous On-state Voltage (v
T
) – Volts
Case Temperature (T
C
) – ˚C
Figure E2.8 On-state Current versus On-state Voltage (Typical)
(0.8 A and 1 A)
20
18
16
Figure E2.11 Normalized DC Gate Trigger Current for All Quadrants
versus Case Temperature
2.0
T
C
= 25 ˚C
Positive or Negative Instantaneous
On-state Current (i
T
) – Amps
14
12
10
8
6
4
2
0
0
0.6
0.8
6-10 A
4A
V
GT
(T
C
= 25 ˚C)
1.5
V
GT
1.0
Ratio of
.5
0
1.0
1.2
1.4
1.6
1.8
-65
-40
-15
+25
+65
+125
Positive or Negative Instantaneous On-state Voltage (v
T
) – Volts
Case Temperature (T
C
) – ˚C
Figure E2.9 On-state Current versus On-state Voltage (Typical)
(4 A, 6 A, 8 A, and 10 A)
Figure E2.12 Normalized DC Gate Trigger Voltage for All Quadrants
versus Case Temperature
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E2 - 8
©2004 Littelfuse, Inc.
Thyristor Product Catalog
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