5pcs DB3 Diac Thyristor Diode

The DB3 is a diode for alternating current (DIAC) trigger diode made by STMicroelectronics:

• Function: Can be used as a trigger diode with a fixed voltage reference

• Applications: Can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts

• Features: Low breakover current, breakover voltage symmetry of 3V, and ECOPACK2 compliant

• Package: DO-35 package with axial leads

• Breakover voltage: Range from 28V to 36V

• Maximum breakover current: 50µA

• Maximum rise time: 2µs

• Operating junction temperature range -40°C to 125°C

• Repetitive peak on state current: 2A at 120Hz

A DIAC is a diode that only conducts current after its breakover voltage has been reached momentarily.