
Diac
Data Sheets
http://www.teccor.com
+1 972-580-7777
E8 - 4
2002 Teccor Electronics
Thyristor Product Catalog
Figure E8.3 Normalized V
BO
Change versus Junction Temperature
Figure E8.4 Test Circuit Waveforms (Refer to Figure E8.5.)
Figure E8.5 Circuit Used to Measure Diac Characteristics
(Refer to Figure E8.4.)
Figure E8.6 Peak Output Current versus Triggering Capacitance
(Per Figure E8.5 with R
L
of 20
)
-8
-6
-4
-2
0
+2
+4
+6
+8
-40
-20
0
+20 +40 +60 +80 +100 +120 +140
Junction Temperature (T
J
) – C
P
B
ST Series
HT Series
V+
V-
V
C
0
-V
BO
I
L
+I
PK
0
t
-I
PK
t
+V
BO
Typical pulse base width is 10 μs
120 V rms
60 Hz
47 k
D.U.T.
R
L
20
1%
V
C
100 k
*
C
T
I
L
O.1
μ
F
*
Adjust for one firing in each half cycle. D.U.T. = Diac
Triggering Capacitance (C
T
) –
μ
F
P
P
)
.01
.02
.03
.04
.05
.06
.07
.08
.09
0
50
100
150
200
250
300
Typca (35VDevce)
.10