To provide the critical electrical and physical specifications of the (bidirectional trigger diode), typically used in TRIAC phase control circuits. This report addresses the common request for a "datasheet PDF" and explains the "14 top" marking.
is an older or discontinued bidirectional trigger diode (DIAC) often found in legacy AC dimmer or starter circuits. While formal modern "DB2" datasheets are scarce as it has largely been replaced by the diac db2 datasheet pdf 14 top
Whether you're digging through old schematics or designing a simple AC controller, the DB2 represents a time when complex power problems were solved with elegant, solid-state physics rather than lines of code. Datasheet - DB3, DB4, SMDB3 - Diac - STMicroelectronics While formal modern "DB2" datasheets are scarce as
) is reached. Once triggered, it conducts in either direction, allowing current to flow until it drops below a holding threshold. Its structure typically consists of three or five alternating P and N layers, effectively functioning like two antiparallel diodes without a control gate. Technical Specifications Based on standard DIAC Datasheets , the DB2 series typically features: Datasheet - DB3, DB4, SMDB3 - Diac - STMicroelectronics Its structure typically consists of three or five
, it is part of the same functional family used for triggering TRIACs and SCRs. RS Components Technical Overview