References: STMicroelectronics DB3 Datasheet Rev 5, NXP DB2 Product Specification, Multicomp DB2 Datasheet (2023).
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
The following specifications are typical for the DB2/DB3 series DIACs: Breakover Voltage ( VBOcap V sub cap B cap O end-sub References: STMicroelectronics DB3 Datasheet Rev 5, NXP DB2
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Because it lacks a control terminal (gate or base), it is non-polarized and exhibits the same electrical behavior for both positive and negative voltage. 2. Electrical Characteristics The DB2 is known for its well-defined breakover voltage cap V sub cap B cap O end-sub References: STMicroelectronics DB3 Datasheet Rev 5