User guide

81
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor
®
brand Thyristors
8 Amp Sensitive, Standard & Alternistor (High Commutation) Triacs
Lxx08xx & Qxx08xx & Qxx08xHx Series
Static Characteristics
Symbol Test Conditions Value Unit
V
TM
I
TM
= 11.3A t
p
= 380 µs MAX. 1.60 V
I
DRM
I
RRM
V
DRM
= V
RRM
Lxx08xy
T
J
= 25°C 400 - 600V
MAX.
10 A
T
J
= 110°C 400 - 600V 0.5 mA
Qxx08xy
T
J
= 25°C 400 - 1000V 20 A
T
J
= 125°C 400 - 800V 2
mA
T
J
= 100°C 1000V 3
Qxx08xHy
T
J
= 25°C
400 - 800V 10
A
1000V 20
T
J
= 125°C 400 - 800V 2
mA
T
J
= 100°C 1000V 3
Thermal Resistances
Symbol Parameter Value Unit
R
(J-C)
Junction to case (AC)
L/Qxx08Ryy /
L/Qxx08Nyy
1. 5
°C/W
L/Qxx08Lyy 2.8
L/Qxx08Vyy 2.1
R
(J-A)
Junction to ambient
L/Qxx08Ryy 45
°C/WL/Qxx08Lyy 50
L/Qxx08Vyy 64
Note: xx = voltage, x = package, y = sensitivity, yy = type & sensitivity
Figure 2: Normalized DC Gate Trigger Current for
All Quadrants vs. Junction Temperature
Junction Temperature (T
J
)- ºC
-65 -40 -15 10 35 60 85 110 125
0.0
Ratio of
I
GT
I
GT
(T
J
= 25°C)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Figure 1: Definition of Quadrants
Note: Alternistors will not operate in QIV
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
(+)
+
-