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Qxx12xHx Series
Teccor® brand Thyristors
12 Amp Alternistor (High Communitation) Triacs
RoHS
Agency Approval
Agency
Agency File Number
L Package: E71639
Main Features
Symbol
IT(RMS)
VDRM/ VRRM
IGT (Q1)
Value
12
400 to 1000
10 to 50
Schematic Symbol
Unit
A
V
mA
MT2
MT1
G
Description
12 Amp bi-directional solid state switch series is designed
for AC switching and phase control applications such as
motor speed and temperature modulation controls, lighting
controls, and static switching relays.
Alternistor type devices only operate in quadrants I, II, & III
and are used in circuits requiring high dv/dt capability.
Features & Benefits
• RoHS Compliant
• Glass – passivated
junctions
• Voltage capability up to
1000 V
• Surge capability up to
120 A
• Electrically isolated
“L-Package” is UL
Recognized for
2500Vrms
• Solid-state switching
eliminates arcing or
contact bounce that
create voltage transients
• No contacts to wear
out from reaction of
switching events
• Restricted (or limited) RFI
generation, depending
on activation point sine
wave
• Requires only a small
gate activation pulse in
each half-cycle
Applications
Excellent for AC switching and phase control applications
such as heating, lighting, and motor speed controls.
Typical applications are AC solid-state switches, light
dimmers, power tools, lawn care equipment, home/brown
goods and white goods appliances.
Alternistor Triacs (no snubber required) are used in
applications with extremely inductive loads requiring
highest commutation performance.
Internally constructed isolated packages are offered for
ease of heat sinking with highest isolation voltage.
Additional Information
Datasheet
Resources
Samples
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/16

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Teccor® brand Thyristors
12 Amp Alternistor (High Communitation) Triacs
Absolute Maximum Ratings — Alternistor (3 Quadrants)
Symbol
Parameter
IT(RMS)
RMS on-state current (full sine wave)
ITSM
Non repetitive surge peak on-state current
(full cycle, TJ initial = 25°C)
I2t I2t Value for fusing
di/dt Critical rate of rise of on-state current
IGTM Peak gate trigger current
PG(AV)
Tstg
TJ
Average gate power dissipation
Storage temperature range
Operating junction temperature range
Note: xx = voltage, y = sensitivity
Qxx12LHy
Qxx12RHy
Qxx12NHy
f = 50 Hz
f = 60 Hz
f = 120 Hz
tpIG≤T
10 μs;
≤ IGTM
TC = 90°C
TC = 105°C
t = 20 ms
t = 16.7 ms
tp = 8.3 ms
TJ = 125°C
TJ = 125°C
TJ = 125°C
Electrical Characteristics (TJ = 25°C, unless otherwise specified) — Alternistor Triac (3 Quadrants)
Symbol
IGT
VGT
VGD
IH
dv/dt
(dv/dt)c
tgt
Test Conditions
VD = 12V RL = 60 Ω
VD = 12V RL = 60 Ω
VD = VDRM RL = 3.3 kΩ TJ = 125°C
IT = 100mA
VD = VDRM Gate Open TJ = 125°C
VD = VDRM Gate Open TJ = 100°C
(di/dt)c = 6.5 A/ms TJ = 125°C
IG = 2 x IGT PW = 15μs IT = 17.0 A(pk)
Quadrant
I – II – III
MAX.
I – II – III
MAX.
I – II – III
MIN.
MAX.
400V
600V
800V
MIN.
1000V
MIN.
TYP.
Qxx12xH2
10
1.3
0.2
15
300
200
150
150
2
4
Value
12
110
120
60
70
2.0
0.5
-40 to 150
-40 to 125
Qxx12xH5
50
1.3
0.2
50
750
650
500
300
30
4
Static Characteristics
Symbol
VTM
ITM = 17.0A tp = 380 µs
IIDRRRMM
VD = VDRM / VRRM
Test Conditions
TJ = 25°C
TJ = 125°C
TJ = 100°C
400-1000V
400-800V
1000V
MAX.
MAX.
Value
1.60
10
2
3
Unit
A
A
A2s
A/μs
A
W
°C
°C
Unit
mA
V
V
mA
V/μs
V/μs
μs
Unit
V
μA
mA
Thermal Resistances
Symbol
Parameter
Rθ(J-C)
Junction to case (AC)
Rθ(J-A)
ote: xx = voltage, y = sensitivity
Junction to ambient (AC)
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/16
Qxx12RHy
Qxx12NHy
Qxx12LHy
Qxx12RHy
Qxx12LHy
Value
1.2
2.3
45
90
Unit
°C/W
°C/W

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Teccor® brand Thyristors
12 Amp Alternistor (High Communitation) Triacs
Figure 1: D efinition of Quadrants
ALL POLARITIES ARE REFERENCED TO MT1
MT2 POSITIVE
MT2 (Positive +Half Cycle)
MT2
(-) I GT
GATE
-I G T
MT1
REF
MT2
(+) I GT
GATE
MT1
QII QI
QIII QIV
REF
MT2
+ IGT
(-) I GT
GATE
(+) I GT
GATE
-MT1
REF
MT2 NEGATIVE
(Negative Half Cycle)
MT1
REF
Note: Alternistors will not operate in QIV
Figure 3: N ormalized DC Holding Current
vs. Junction Temperature
4.0
3.0
2.0
1.0
0.0
-65 -40 -15 10 35 60 85
Junction Temperature (TJ) - ºC
Figure 5: P ower Dissipation (Typical)
vs. RMS On-State Current
110
14
CURRENT WAVEFORM: Sinusoidal
12
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
10
8
6
4
2
0
0 2 4 6 8 10 12
RMS On-State Current [IT(RMS)] -- Amps
14
Figure 2: N ormalized DC Gate Trigger Current for
All Quadrants vs. Junction Temperature
4.0
3.0
2.0
1.0
0.0
-65 -40 -15
10
35 60 85
Junction Temperature (TJ) - C
110
Figure 4: N ormalized DC Gate Trigger Voltage for
All Quadrants vs. Junction Temperature
2.0
1.5
1.0
0.5
0.0
-65 -40 -15
10
35
60 85 110
Junction Temperature (TJ) - ºC
Figure 6: M aximum Allowable Case Temperature
vs. On-State Current
130
120
Qxx12RH5
Qxx12NH5
110
100
Qxx12LH5
90
80
CURRENT WAVEFORM: Sinusoidal
70 LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360°
60
0
2 4 6 8 10
RMS On-State Current [IT(RMS)] - Amps
12
14
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/16

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Teccor® brand Thyristors
12 Amp Alternistor (High Communitation) Triacs
Figure 7: Maximum Allowable Ambient Temperature
vs. On-State Current
120
110
100
90
80
70
60
50
40
30
20
0.
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 360
FREE AIR RATING - No HEAT SINK
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
RMS On-State Current [IT(RMS)] - AMPS
2.0
Figure 8: O n-State Current vs. On-State Voltage
(Typical)
20
18
16
14
12
10
8
6
4
2
0
0.7
TC = 25ºC
0.8 0.9
1.0 1.1 1.2 1.3
Positive or Negative Instantaneous On-State Voltage
(VT) - Volts
1.4
Figure 9: S urge Peak On-State Current vs. Number of Cycles
1000
100
10
Supply Frequency: 60Hz Sinusoidal
Load: Resistive
RMS On-State Current [I T(RMS) : Maximum]
Rated Value at Specific Case Temperature
Notes:
1. G ate control may be lost during and immediately
following surge current interval.
2. O verload may not be repeated until junction
temperature has returned to steady-state
rated value.
1
1 10 100 1000
Surge Current Duration - Full Cycles
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/16

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Teccor® brand Thyristors
12 Amp Alternistor (High Communitation) Triacs
Soldering Parameters
Reflow Condition
Pb – Free assembly
- Temperature Min (Ts(min))
Pre Heat - Temperature Max (Ts(max))
- Time (min to max) (ts)
Average ramp up rate (LiquidusTemp)
(TL) to peak
TS(max) to TL - Ramp-up Rate
Reflow
-Temperature (TL) (Liquidus)
- Time (min to max) (ts)
Peak Temperature (TP)
Time within 5°C of actual peak
Temperature (tp)
Ramp-down Rate
Time 25°C to peakTemperature (TP)
Do not exceed
150°C
200°C
60 – 180 secs
5°C/second max
5°C/second max
217°C
60 – 150 seconds
260+0/-5 °C
20 – 40 seconds
5°C/second max
8 minutes Max.
280°C
Physical Specifications
Terminal Finish
100% Matte Tin-plated
Body Material
UL recognized epoxy meeting flammability
classification 94V-0
Terminal Material Copper Alloy
Design Considerations
Careful selection of the correct device for the application’s
operating parameters and environment will go a long way
toward extending the operating life of the Thyristor. Good
design practice should limit the maximum continuous
current through the main terminals to 75% of the device
rating. Other ways to ensure long life for a power discrete
semiconductor are proper heat sinking and selection of
voltage ratings for worst case conditions. Overheating,
overvoltage (including dv/dt), and surge currents are
the main killers of semiconductors. Correct mounting,
soldering, and forming of the leads also help protect
against component damage.
TP
TL
TS(max)
TS(min)
25
Ramp-up
Preheat
tS
time to peak temperature
tP
tL
Ramp-down
Time
Environmental Specifications
Test
AC Blocking
Temperature Cycling
Temperature/
Humidity
High Temp Storage
Low-Temp Storage
Resistance to
Solder Heat
Solderability
Lead Bend
Specifications and Conditions
MIL-STD-750, M-1040, Cond A Applied
Peak AC voltage @ 125°C for 1008 hours
MIL-STD-750, M-1051,
100 cycles; -40°C to +150°C; 15-min
dwell time
EIA / JEDEC, JESD22-A101
1008 hours; 320V - DC: 85°C; 85%
rel humidity
MIL-STD-750, M-1031,
1008 hours; 150°C
1008 hours; -40°C
MIL-STD-750 Method 2031
ANSI/J-STD-002, category 3, Test A
MIL-STD-750, M-2036 Cond E
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/16