
Electrical Specifications
Triacs
2-6
Teccor Electronics, Inc.
(972) 580-7777
Gate Characteristics
Teccor triacs may be turned on between gate and MT1 terminals
in the following ways:
With in-phase signals (using standard AC line) Quadrants I and
III are used.
By applying unipolar pulses (gate always positive or nega-
tive)—with negative gate pulses Quadrants II and III are used
and with positive gate pulses Quadrants I and IV are used.
However, due to higher gate requirements for Quadrant IV, it
is recommended that only negative pulses be applied. If pos-
itive pulses are required, see sensitive triac sections of cata-
log or contact factory.
In all cases, if maximum surge capability is required, pulses
should be a minimum of one magnitude above IGT rating with a
steep rising waveform (
≤ 1 sec rise time).
Definition of Quadrants
Electrical Isolation
Teccor’s isolated triac packages will withstand a minimum high
potential test of 2500VAC (RMS) from leads to mounting tab,
over the operating temperature range of the device. See isolation
table below for standard and optional isolation ratings.
* For 4000V isolation, use V suffix in part number.
** UL Recognized File E71639
MT2 POSITIVE
MT2 NEGATIVE
MT1
MT2
+ I
GT
REF
MT1
I
GT
GATE
MT2
REF
MT1
MT2
REF
MT1
MT2
REF
(
-)
I
GT
GATE
(+)
I
GT -
I
GT
GATE
(
-)
I
GT
GATE
(+)
+
-
ELECTRICAL ISOLATION
FROM LEADS TO MOUNTING TAB
VAC (RMS)
Isolated **
TO-220AB
2500
Standard
4000
Optional *
THERMAL RESISTANCE (STEADY STATE)
R θ JC [R θ JA] (TYP.) °C/W
Type
TO-92
TYPE 1
TO-202AB
TYPE 2
TO-202AB
THERMOTAB
TO-220AB
NON-ISOLATED
TO-220AB
0.8 Amp
60 [135]
1.0 Amp
50 [95]
4.0 Amps
3.5 [45]
6 [70]
3.6 [50]
6.0 Amps
3.8
3.3
2.1 [45]
8.0 Amps
3.3
2.8
1.8
10.0 Amps
3.5
2.6
1.5
15.0 Amps
2.1
1.3
25.0 Amps
1.1