SILICON BIDIRECTIONAL DIAC
FEATURES
The three layer, two terminal, axial lead, hermetically sealed diacs are
designed specifically for triggering thyristors. They demonstrate low breakover
current at breakover voltage as they withstand peak pulse current, The breakover
symmetry is within three volts. These diacs are
intended for use in thyrisitors phase control , circuits for lamp dimming, universal
motor speed control ,and heat control.
DO-35(GLASS)
DB4 are bi-directional trigged diode designed to operate
in conjunction with Triacs and SCR's
ABSOLUTE RATINGS(LIMITING VALUES)
Dimensions in inches and (millimeters)
P
C
I
TRM
T
STG
/T
J
Power Dissipation on Printed
Circuit(L=10mm)
Repetitive Peak on-state
Current
Storage and Operating Junction Temperature
T
A
=50 C
tp=10
µ
s
F=100Hz
150
mW
2.0
16
2.0
2.0
A
C
-40 to+125/-40 to 110
ELECTRICAL CHARACTERISTICS
V
BO
I +V
BO
I-
I - V
BO
I
I+ VI
V
O
I
BO
tr
I
B
Breakover Voltage (Note 2 )
Breakover Voltage Symmetry
Dynamic Breakover Voltage (Note1)
Output Voltage (Note 1 )
Breakover Current (Note1)
Rise Time (Note1)
Leakage Current (Note1)
C=22nF(Note 2)
See diagram 1
C=22nF(Note 2)
See diagram 1
I=(I
BO
to IF=10mA)
See Diagram 1
See Diagram 2
C=22nF(Note 2)
See Diagram 3
V
B
=0.5 V
BO
max
see diagram 1
Min
Typ
Max
Max
Min
Min
Max
Typ
Max
5
100
1.5
10
+3
35
40
45
V
V
V
V
µA
µS
µA
Notes
: 1.Electrical characteristics applicable in both forward and reverse directions.
2.Connected in parallel with the devices.
Wing Shing Computer Components Co., (H.K .)L td.
Homepage:
http: / / www.wingshing.com
Tel: (852)2341 92 7 6 Fax : (852)27 9 7 8153
E-mail: ic@wingshing.com
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