Littelfuse QxXx User Manual
Teccor® brand Thyristors
0.8 Amp Sensitive & Standard Triacs
LxX8Ex & LxXx & QxX8E & QxXx Series
Description
0.8 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.
Sensitive type devices guarantee gate control in Quadrants
I & IV needed for digital control circuitry.
Standard type devices normally operate in Quadrants I & III
triggered from AC line.
Features
Main Features
Symbol Value Unit
I
T(RMS)
V
DRM/VRRM
I
GT (Q1)
0.8 A
400 to 600 V
3 to 25 mA
t3P)4$PNQMJBOU
t(MBTToQBTTJWBUFE
junctions
Applications
Excellent for lower current heating controls, water valves,
t7PMUBHFDBQBCJMJUZVQUP
600 V
t4VSHFDBQBCJMJUZVQUP
10 A
and solenoids.
Schematic Symbol
Typical applications are AC solid-state switches, home/
brown goods and white goods appliances.
Sensitive gate Triacs can be directly driven by
MT2 MT1
microprocessor or popular opto-couplers/isolators.
G
Absolute Maximum Ratings — Sensitive Triacs (4 Quadrants)
Symbol Parameter Value Unit
I
T(RMS)
I
TSM
2
I
tI
di/dt
I
GTM
P
G(AV)
T
stg
T
J
Note: x = voltage, y = sensitivity
RMS on-state current (full sine wave) LxX8y/LxXy TC = 50°C 0.8 A
Non repetitive surge peak on-state current
(full cycle, TJ initial = 25°C)
2
t Value for fusing tp = 8.3 ms 0.41 A2s
Critical rate of rise of on-state current
= 50mA with 0.1s rise time)
(I
G
Peak gate trigger current tp = 10 s
Average gate power dissipation
Storage temperature range
Operating junction temperature range
f = 50 Hz t = 20 ms 8.3
f = 60 Hz t = 16.7 ms 10
f = 120 Hz
= 110°C
T
J
T
= 110°C
J
T
= 110°C
J
LxX8Ey -65 to 150
LxXy -40 to 150
LxX8Ey -65 to 110
LxXy -40 to 110
20 A/s
1A
0.2 W
A
°C
°C
LxX8Ex & LxXx & QxX8Ex & QxXx Series
17
Specifications are subject to change without notice.
©2013 Littelfuse, Inc
Revised: 09/23/13
Teccor® brand Thyristors
0.8 Amp Sensitive & Standard Triacs
Absolute Maximum Ratings — Standard Triac
Symbol Parameter Value Unit
I
T(RMS)
I
TSM
2
tI
I
Non repetitive surge peak on-state current
di/dt
I
GTM
P
G(AV)
T
stg
T
J
Note: x = voltage, y = sensitivity
Electrical Characteristics (T
RMS on-state current
(full sine wave)
(full cycle, TJ initial = 25°C)
2
t Value for fusing tp = 8.3 ms 0.41 A2s
Critical rate of rise of on-state current
= 200mA with 0.1s rise time)
(I
G
Peak gate trigger current
Average gate power dissipation
Storage junction temperature range
Operating junction temperature range
= 25°C, unless otherwise specified) — Sensitive Triac (4 Quadrants)
J
Symbol Test Conditions Quadrant
I
GT
V
GT
V
GD
I
H
VD = 12V RL = 30
VD = V
IT = 100mA MAX. 5 10 10 15 mA
dv/dt VD = V
RL = 3.3 k TJ = 110°C ALL MIN. 0.2 V
DRM
Gate Open TJ = 100°C
DRM
*o**o***
IV 3 5 10 20
ALL MAX. 1.3 V
400V
600V 10 10 20 25
QxXE8y/
QxXy
= 60°C 0.8 A
T
C
f = 50 Hz t = 20 ms 8.3
f = 60 Hz t = 16.7 ms 10
f = 120 Hz
= 10 s;
t
p
IGT I
GTM
= 125°C
T
J
T
= 125°C
J
T
= 125°C
J
QxX8Ey -65 to 150
QxXy -40 to 150
QxX8Ey -65 to 125
QxXy -40 to 125
MAX.
TYP.
LxX8E3
LxX3
35510
15 15 25 30
LxX8E5
LxX5
LxX8E6
LxX6
20 A/s
1A
0.2 W
LxX8E8
LxX8
(dv/dt)c (di/dt)c = 0.43 A/ms TJ = 110°C TYP. 0.5 1 1 2 V/s
t
gt
IG = 2 x IGT PW = 15s IT = 1.13 A(pk) TYP. 2.8 3.0 3.0 3.2 s
A
°C
°C
Unit
mA
V/s
Electrical Characteristics (T
Symbol Test Conditions Quadrant
I
GT
V
GT
V
GD
I
H
dv/dt VD = V
VD = 12V RL = 60
VD = V
RL = 3.3 k TJ = 125°C ALL MIN. 0.2 0.2 V
DRM
IT = 200mA MAX. 15 25 mA
Gate Open TJ = 125°C
DRM
= 25°C, unless otherwise specified) — Standard Triac
J
QxX8E3
*o**o*** MAX. 10 25
IV TYP. 25 50
*o**o*** MAX. 1.3 1.3 V
400V
600V 15 25
MIN.
QxX3
25 35
QxX8E4
QxX4
(dv/dt)c (di/dt)c = 0.43 A/ms TJ = 125°C TYP. 1 1 V/s
t
gt
Note: x = voltage
LxX8Ex & LxXx & QxX8Ex & QxXx Series
IG = 2 x IGT PW = 15s IT = 1.13 A(pk) TYP. 2.5 3.0 s
18
Specifications are subject to change without notice.
©2013 Littelfuse, Inc
Unit
mA
V/s
Revised: 09/23/13
Teccor® brand Thyristors
0.8 Amp Sensitive & Standard Triacs
Static Characteristics (T
= 25°C, unless otherwise specified)
J
Symbol Test Conditions Value Unit
V
TM
I
DRM
I
RRM
ITM = 1.13A tp = 380 µs MAX. 1.60 V
T
= 25°C 400-600V 2 A
LxX8Ey / LxXy
V
DRM
= V
RRM
MAX.
QxX8Ey / QxXy
J
= 110°C 400-600V 0.1 mA
T
J
= 25°C 400-600V 5 A
T
J
= 125°C 400-600V 1 mA
T
J
Thermal Resistances
Symbol Parameter Value Unit
R
(J-C)
R
(J-A)
Note: * = Mounted on 1 cm2 1 copper (two-ounce) foil surface
Junction to case (AC)
Junction to ambient L/QxX8Ey 135 °C/W
Figure 1: Definition of Quadrants
ALL POLARITIES ARE REFERENCED TO MT1
MT2 POSITIVE
(Positive Half Cycle)
MT2
(-)
I
GT
GATE
MT1
I
GT
GATE
REF
MT2
MT1
REF
I
-
GT
(-)
+
(+)
I
GATE
QII
QI
QIV
QIII
(+)
I
GT
GATE
-
MT2 NEGATIVE
(Negative Half Cycle)
GT
MT2
REF
MT2
REF
MT1
MT1
+ I
GT
L/QxX8Ey 60
L/QxXy 60
*
°C/W
Figure 2: Normalized DC Gate Trigger Current for
All Quadrants vs. Junction Temperature
4.0
3.0
GT
I
= 25°C)
J
(T
GT
2.0
I
Ratio of
1. 0
0.0
Junction Temperature (TJ)- ºC
+125
11085603510-15-40-65
LxX8Ex & LxXx & QxX8Ex & QxXx Series
19
Specifications are subject to change without notice.
©2013 Littelfuse, Inc
Revised: 09/23/13
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