SMDB3 STMicroelectronics, SMDB3 Datasheet

DIAC 32V 1A SOT-23

SMDB3

Manufacturer Part Number
SMDB3
Description
DIAC 32V 1A SOT-23
Manufacturer
STMicroelectronics
Datasheet

Specifications of SMDB3

Current - Peak Output
1A
Voltage - Breakover
28 ~ 36V
Current - Breakover
10µA
Package / Case
SOT-23-3
Breakover Voltage Vbo
45 V
Mounting Style
SMD/SMT
Breakover Current Ibo Min
50 uA
Off-state Leakage Current @ Vdrm Idrm
0.01 mA
Rated Repetitive Off-state Voltage Vdrm
36 V
Operating Temperature Range
-40°C To +125°C
Thyristor Case
SOT-23
No. Of Pins
3
Breakover Voltage Min
28V
Dc Breakover Voltage
32V
Forward Current If
1A
Leaded Process Compatible
Yes
Rohs Compliant
Yes
Vbo
32V and 40V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Hold (ih) (max)
-
Lead Free Status / Rohs Status
 Details
Other names
497-3148-2

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ABSOLUTE MAXIMUM RATINGS (limiting values)
October 2001 - Ed: 2B
FEATURES
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.
Note: * SMDB3 indicated as Preliminary spec as product is still in development stage.
Symbol
V
LOW BREAKOVER CURRENT
BO
I
Tstg
TRM
Tj
: 32V and 40V
®
Repetitive peak on-state current
tp = 20 s
Storage temperature range
Operating junction temperature range
F= 120 Hz
Parameter
DB3 DB4 SMDB3
SMDB3
DB3 / DB4
Pin 1 and 3 must be shorted
(DB3 and DB4)
2
(SMDB3)*
DO-35
together
SOT-23
- 40 to + 125
1
Value
1.00
2.00
3
DIAC
Unit
A
C
1/5

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SMDB3 Summary of contents

Page 1

... I Repetitive peak on-state current TRM 120 Hz Tstg Storage temperature range Tj Operating junction temperature range Note: * SMDB3 indicated as Preliminary spec as product is still in development stage. October 2001 - Ed: 2B DB3 DB4 SMDB3 Pin 1 and 3 must be shorted Parameter SMDB3 DB3 / DB4 DIAC DO-35 (DB3 and DB4) ...

Page 2

... DB3 DB4 SMDB3 ELECTRICAL CHARACTERISTICS (Tj = 25°C unless otherwise specified) Symbol Parameter V Breakover voltage * Breakover voltage BO1 BO2 symmetry V Dynamic breakover voltage * V Output voltage * O I Breakover current * BO tr Rise time * I Leakage current * R I Peak current * P * Applicable to both forward and reverse directions. ...

Page 3

... I F 10mA Marking Weight 0.01 g 0.15 g 0.15 g Diagram 2: Test circuit. 220 Diagram 3: Rise time measurement 0 DB3 DB4 SMDB3 Base Quantity Packing Mode 3000 Tape & Reel 5000 Tape & Reel 5000 Tape & Reel 10 k 500 k D.U.T Rs=0 C=0.1µ ...

Page 4

... SMDB3 1.0 0.1 1 100 125 C(nF) 200 500 REF DB3 DB4 SMDB3 F=120Hz Tj initial=25°C DB3/DB4 SMDB3 tp(µs) 10 DIMENSIONS Millimeters Inches Min. Max. Min. Max. 3.05 4.50 0.120 0.177 1.53 2.00 0.060 0.079 28.00 1.102 0.458 0.558 0.018 0.022 ...

Page 5

... Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. REF 0.9 0.035 mm inch STMicroelectronics GROUP OF COMPANIES http://www.st.com DB3 DB4 SMDB3 DIMENSIONS Millimeters Inches Min. Max. Min. Max. 0.89 1.4 0.035 0.055 0 0.1 0 0.004 0.3 0.51 0.012 0.02 0.085 0.18 0.003 0.007 2 ...

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