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DB3

STMicroelectronics
Part Number DB3
Manufacturer STMicroelectronics
Description DIAC
Published Mar 27, 2005
Detailed Description DB3 DB4 SMDB3 ® DIAC FEATURES s VBO : 32V and 40V s LOW BREAKOVER CURRENT DESCRIPTION Functioning as a trigger diode w...
Datasheet PDF File DB3 PDF File

DB3
DB3

Overview
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 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=20Ω) 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 OTHER INFORMATION Part Number SMDB3 DB3 DB4 Marking DB3 DB3 (Blue Body Coat) DB4 (Blue Body Coat) DB3 DB4 SMDB3 Weight 0.
01 g 0.
15 g 0.
15 g Base Qua...


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