DC COMPONENTS CO., LTD.
R
DB3
THRU
DB4
RECTIFIER SPECIALISTS
TECHNICAL SPECIFICATIONS OF BIDIRECTIONAL DIODE THYRISTORS (DIACS)
FEATURES
* Glass passivalted three-layer for triggering thyristors.
* Low breakover current at breakover voltage.
* For use in thyristor phase-control circuit for lampdimming,
universal-motor speed control and heat controls.
DO-35
MECHANICAL DATA
* Case: Glass sealed case
* Lead: MIL-STD-202E, Method 208 guaranteed
* Mounting position: Any
* Weight: 0.15 gram
25.0MIN
0.52Ø
4.2MAX
2.0MAX
25.0MIN
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Dimensions in millimeters
o
PARAMETERS
SYMBOL
DB3
28
DB4
35
40
45
3
5
100
2.0
UNITS
VOLT
Min
Typ
Max
VOLT
Max
VOLT
Min
uA
Max
AMP
Max
Breakover Voltage
+VBO, -VBO
32
36
Breakover Voltage Symmetry
Dynamic Breakback Voltage
Breakover Current
Peak Pulse Current for
10uS, 120pps, TA<=40 C
o
(+VBO)-(-VBO)
VBO - VBR
+IBO, -IBO
IP
3
5
100
2.0
156
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