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STMicroelectronics Electronic Components Datasheet

DB3 Datasheet

DIAC

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DB3 pdf
DB3 DB4 SMDB3
®
DIAC
FEATURES
s VBO : 32V and 40V
s LOW BREAKOVER CURRENT
DESCRIPTION
Functioning as a trigger diode with a fixed voltage
reference, the DB3/DB4 series can be used in
conjunction with triacs for simplified gate control
circuits or as a starting element in fluorenscent
lamp ballasts.
A new surface mount version is now available in
SOT-23 package, providing reduced space and
compatibility with automatic pick and place
equipment.
DO-35
(DB3 and DB4)
2
3
1
SOT-23
(SMDB3)*
Pin 1 and 3 must be shorted
together
ABSOLUTE MAXIMUM RATINGS (limiting values)
Symbol
Parameter
ITRM Repetitive peak on-state current
tp = 20 µs F= 120 Hz
Tstg Storage temperature range
Tj Operating junction temperature range
Value
Unit
SMDB3
1.00 A
DB3 / DB4
2.00
- 40 to + 125 °C
Note: * SMDB3 indicated as Preliminary spec as product is still in development stage.
October 2001 - Ed: 2B
1/5


STMicroelectronics Electronic Components Datasheet

DB3 Datasheet

DIAC

No Preview Available !

DB3 pdf
DB3 DB4 SMDB3
ELECTRICAL CHARACTERISTICS (Tj = 25°C unless otherwise specified)
Symbol
Parameter
Test Conditions
SMDB3 DB3 DB4 Unit
VBO
Breakover voltage *
C = 22nF **
MIN.
TYP.
MAX.
I VBO1 - VBO2 I Breakover voltage
symmetry
C = 22nF **
MAX.
V Dynamic breakover VBO and VF at 10mA MIN.
voltage *
VO Output voltage *
see diagram 2
(R=20)
MIN.
IBO
Breakover current *
C = 22nF **
MAX.
tr Rise time *
see diagram 3
MAX.
IR
Leakage current *
VR = 0.5 VBO max MAX.
IP Peak current *
* Applicable to both forward and reverse directions.
** Connected in parallel to the device.
see diagram 2 (Gate)
MIN.
28
32
36
10
10
10
0.50
1
1
28 35
32 40
36 45
3
5
5
50
2
10
0.30
V
V
V
V
µA
µs
µA
A
PRODUCT SELECTOR
Part Number
SMDB3
DB3
DB4
VBO
28 - 36
28 - 36
35 - 45
Package
SOT-23
DO-35
DO-35
ORDERING INFORMATION
SM DB 3
Surface
Mount
Version
Diac Series
2/5
Breakover voltage
3: VBO typ = 32V
4: VBO typ = 40V


Part Number DB3
Description DIAC
Maker STMicroelectronics
Total Page 5 Pages
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DB3 pdf
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