SILICON BIDIRECTIONAL DIAC
FEATURES
ABSOLUTE RATINGS(LIMITING VALUES)
ELECTRICAL CHARACTERISTICS
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.
DB4 are bi-directional trigged diode designed to operate
in conjunction with Triacs and SCR's
Power Dissipation on Printed
Circuit(L=10mm)
Breakover Voltage (Note 2 )
Breakover Voltage Symmetry
C=22nF(Note 2)
See diagram 1
C=22nF(Note 2)
See diagram 1
C=22nF(Note 2)
Min
Min
Min
Typ
35
40
45
+3
5
100
1.5
10
Max
Max
Max
Max
Typ
I=(I to IF=10mA)
See Diagram 1
BO
See Diagram 2
See Diagram 3
V =0.5 V max
see diagram 1
B
BO
Breakover Current (Note1)
Leakage Current (Note1)
Dynamic Breakover Voltage (Note1)
Rise Time (Note1)
Output Voltage (Note 1 )
P
C
mW
A
T
STG
/T
J
T =50 C
A
tp=10 s
F=100Hz
Repetitive Peak on-state
Current
Storage and Operating Junction Temperature
-40 to+125/-40 to 110
C
V
V
V
V
A
S
A
I
TRM
V
BO
I +V
I-
BO
I + V I
V
O
I
BO
I
B
tr
I - V
I
BO
DO-35(GLASS)
Dimensions in inches and (millimeters)
2.0
2.0
2.0
16
150
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.
Tel: (852)2341 92 7 6 Fax : (852)27 9 7 8153
Homepage:
http: / / www.wingshing.com
E-mail: ic@wingshing.com
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