– If you confirm the manufacturer (e.g., STMicroelectronics, NXP, or a generic DB2 DIAC), I can point you to official sources.
The is a bidirectional trigger diode (DIAC) typically used in phase-control circuits like lamp dimmers and motor speed controllers. While it is a distinct part number, it is often grouped in datasheets with the more common DB3 and DB4 series from manufacturers like STMicroelectronics or Littelfuse . Key Technical Specifications diac db2 datasheet pdf 14 top