Alternistor Triacs Thyristor Product Catalog
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General Notes
• All measurements are made at 60Hz with a resistive load at an
ambient temperature of +25°C unless specified otherwise.
• Operating temperature range (TJ) is -40°C to +125°C except 0°C to
+125°C for FastPaks.
• Storage temperature range (TS) is -40°C to +125°C except -20°C to
+125°C for FastPaks.
• Lead solder temperature is a maximum of 230°C for 10 seconds
maximum ≥ 1/16" (1.59mm) from case.
• The case temperature (TC) is measured as shown on the dimen-
sional outline drawings. See “Package Dimensions” section of this
catalog.
Electrical Specification Notes
(1) For either polarity of MT2 with reference to MT1 terminal.
(2) For either polarity of gate voltage (VGT) with reference to MT1 ter-
minal.
(3) See Definition of Quadrants.
(4) See Figures 4.1 through 4.4 for current rating at specific operating
temperature and Figure 4.16 for free air rating (no heat sink).
(5) See Figures 4.5 and 4.6 for iT and vT
.
(6) See Figure 4.7 for VGT vs TC.
(7) See Figure 4.8 for IGT vs TC.
(8) See Figure 4.9 for IH vs TC.
(9) See Figures 4.10 and 4.11 for surge rating with specific durations.
(10) See Figure 4.12 for tgt vs IGT.
(11) See package outlines for lead form configurations. When ordering
special lead forming, add type number as suffix to part number.
(12) Initial on-state current = 400 mA(DC) for 16-40A devices and
100mA for 6-12 Amp devices.
(13) See Figures 4.1 through 4.4 for maximum allowable case temper-
ature at maximum rated current.
(14) Pulse width ≤ 10µs.
(15) For 6-12 Amp devices, RL = 60Ω; 16 Amp and above, RL = 30Ω
(16) 40 Amp pin terminal leads on K package can run 100°C to 125°C.
(17) Alternistor does not turn on in Quadrant IV.
(18) Tc = TJ for test conditions in off-state
(19) IGT = 200 mA for 6-12 Amp devices and 500 mA for 16-40 Amp
devices with gate pulse having rise time of ≤ 0.1 microsecond.
Gate Characteristics
Teccor triacs may be turned on in the following ways:
• With in-phase signals (using standard AC line) Quadrants I and
III are used.
• By applying unipolar pulses (gate always negative)—with nega-
tive gate pulses Quadrants II and III are used.
In all cases, if maximum surge capability is required, gate pulses
should be a minimum of one magnitude above minimum IGT rat-
ing with a steep rising waveform (≤1µs rise time).
Definition of Quadrants
Electrical Isolation
Teccor’s isolated Alternistor packages will withstand a minimum
high potential test of 2500 VAC (RMS) from leads to mounting
tab, over the operating temperature range of the device. See iso-
lation table below for standard and optional isolation ratings.
* For 4000V isolation, use V suffix in part number.
** UL Recognized File E71639
ELECTRICAL ISOLATION
FROM LEADS TO MOUNTING TAB **
VAC
(RMS) Isolated
TO-218AC
Isolated
FASTPAK
Isolated
TO-220AB
Isolated
TO-218X
2500 Standard Standard Standard Standard
4000 N/A N/A Optional * N/A
MT2 POSITIVE
(Positive Half Cycle)
MT2 NEGATIVE
(Negative Half Cycle)
MT1
MT2
+
IGT
REF
QII
MT1
IGT
GATE
MT2
REF
MT1
MT2
REF
MT1
MT2
REF
QI
QIV
QIII
ALL POLARITIES ARE REFERENCED TO MT1
(-)
IGT
GATE
(+)
IGT
-
IGT
GATE
(-)
IGT
GATE
(+)
+
-
NOTE: Alternistors will not operate in QIV