Teccor, Brand thyristors, 1 amp sensitive & standard triacs – Littelfuse QxNx Series User Manual
Page 3: Static characteristics, Thermal resistances, Figure 1: definition of quadrants
37
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor
®
brand Thyristors
1 Amp Sensitive & Standard Triacs
Lx01Ex & LxNx & Qx01Ex & QxNx Series
Static Characteristics
(T
J
= 25°C, unless otherwise specified)
Symbol
Test Conditions
Value
Unit
V
TM
I
TM
= 1.41A t
p
= 380 μs
MAX.
1.60
V
I
DRM
I
RRM
V
DRM
= V
RRM
MAX.
Lx01Ey / LxNy
T
J
= 25°C
400-600V
2
μA
T
J
= 110°C
400-600V
0.1
mA
Qx01Ey / QxNy
T
J
= 25°C
400-600V
5
μA
T
J
= 125°C
400-600V
1
mA
Thermal Resistances
Symbol
Parameter
Value
Unit
R
T(J-C)
Junction to case (AC)
L/Qx01Ey
50
°C/W
L/QxNy
40
*
R
T(J-A)
Junction to ambient
L/Qx01Ey
95
°C/W
Note: * = Mounted on 1 cm
2
copper (two-ounce) foil surface
Figure 2: Normalized DC Gate Trigger Current for
All Quadrants vs. Junction Temperature
0.0
1.0
2.0
3.0
4.0
-65 -40 -15 10 35 60 85 110 125
Junction Temperature (T
j
) - ºC
Ratio of
I
GT
/I
GT
(T
j
=2
5
ºC)
Figure 1: Definition of Quadrants
MT2 POSITIVE
(Positive Half Cycle)
MT2 NEGATIVE
(Negative Half Cycle)
MT1
MT2
+
I
GT
REF
QII
MT1
I
GT
GATE
MT2
REF
MT1
MT2
REF
MT1
MT2
REF
QI
QIV
QIII
ALL POLARITIES ARE REFERENCED TO MT1
(
-
)
I
GT
GATE
(+)
I
GT
-
I
GT
GATE
(
-
)
I
GT
GATE
(+)
+
-