DB3 Datasheet, PDF (1/2 Pages) STMicroelectronics – TRIGGER DIODES

DB3, DB4, DC34
Silicon Bidirectional Trigger Diodes
These diacs are intended for use in thyristor phase control,
circuits for lamp-dimming, universal-motor speed controls, and
heat controls.
Max. 0.5
Max. 1.9
Min. 27.5
Black
Part No.
Black
"ST" Brand
XXX
Max. 3.9
ST
Min. 27.5
Glass Case DO-35
Dimensions in mm
Absolute Maximum Ratings (T_a = 25 ^OC)
Parameter
Power Dissipation (T_a = 65 ^OC)
Repetitive Peak On-state Current (tp = 20 µs, f = 100 Hz)
Operating Junction and Storage Temperature Range
Symbol
Value
Unit
P_tot
150
mW
I_TRM
2
A
T_j, T_stg
- 40 to + 125
O_C
Characteristics at T_a = 25 ^OC
Parameter
Breakover Voltage
at C = 22 nF, see diagram 1
Breakover Voltage Symmetry
at C = 22 nF, see diagram 1
Dynamic Breakover Voltage
at ΔI = [I_BO to I_F = 10 mA]
Output Voltage
See diagram 2
Breakover Current
at C = 22 nF
Leakage Current
at V_B = 0.5 V_BO max
Rise Time
See diagram 3
DB3
DC34
DB4
Symbol
V_BO
[|+V_BO|-|-V_BO|]
| ΔV ± |
V_O
I_BO
I_B
t_r
Min. Max. Unit
28
36
30
38
V
35
45
-
3
V
5
-
V
5
-
V
-
50
µA
-
10
µA
-
2
µs