Bi-Directional Diac DB3

Description

DB3, DB4, SMDB3 DIAC Diodes ST Microelectronics 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 compact, SMD based designs for automated manufacturing. Features and Benefits VBO: 32 V and 40 V Low breakover current Breakover voltage symmetry: 3V ECOPACK®2 compliant 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 The DIAC, or ‘diode for alternating current’, is a diode that conducts current only after its breakover voltage has been reached momentarily. Datasheet Specifications Attribute Value Maximum Breakover Current 0.05mA Maximum Breakover Voltage 36V Repetitive Peak On-State Current 2A Repetitive Peak Off-State Current 0.01mA Mounting Type Through Hole Package Type DO-35 Pin Count 2 Dimensions 4.5 x 2 x 2mm Length 4.5mm Width 2mm Maximum Operating Temperature 125 °C Height 2mm Minimum Operating Temperature -40 °C