Download SMDB3 Datasheet PDF
STMicroelectronics
SMDB3
SMDB3 is Diac manufactured by STMicroelectronics.
Features - VBO : 32 V and 40 V - Low breakover current - Breakover voltage symmetry : 3V - ECOPACK®2 pliant Applications - Triggering device for Triac or SCR based motor / light dimmer - 32 V trigger device for oscillator circuit - Start up triggering in lighting ballast for CFL, TL or LED lamps 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 fluorescent lamp ballasts. The surface mount SOT23-3L package allows pact, SMD based designs for automated manufacturing. Product status link DB3 DB4 Product summary Part number - 36 V DB3 - 36 V DB4 - 45 V DS2125 - Rev 3 - December 2018 For further information contact your local STMicroelectronics sales office. .st. DB3, DB4, SMDB3 Characteristics...