The DB2 is a glass-passivated, single-phase bridge rectifier used widely in AC-to-DC conversion applications. It is designed to convert an alternating current (AC) input into a direct current (DC) output using a configuration of four diodes in a bridge topology. Its compact DIP-4 (Dual In-line Package) form factor makes it suitable for printed circuit board (PCB) mounting in high-density electronics.
While you should always verify with the official DIAC DB2 Datasheet for your specific manufacturer, typical parameters include: Generally ranges between 28V and 36V . Breakover Current ( IBOcap I sub cap B cap O end-sub ): Typically max 50 µA . Peak Pulse Current ( ITRMcap I sub cap T cap R cap M end-sub ): Usually around 2A for a short duration ( Operating Junction Temperature ( Tjcap T sub j ): -40negative 40 +125positive 125 Common Applications Diac Db2 Datasheet Pdf 14
from major manufacturers. Use DB3 datasheet as the functional replacement unless your component marking clearly indicates a different breakover voltage (check with a component tester or curve tracer). The DB2 is a glass-passivated, single-phase bridge rectifier
It is critical to distinguish the DB2 from a Diac. While you should always verify with the official
The is a specialized bidirectional trigger diode frequently used in AC power control circuits, such as light dimmers and motor speed controllers. While modern datasheets often focus on the more common DB3 or DB4 variants, the DB2 remains a key reference for lower-voltage triggering applications. Core Technical Specifications
Extremely low, often under 10μA , ensuring minimal power waste when in the "off" state.
Industrial-grade durability, operating from -40°C to +125°C . Common Applications