Understanding the DB2 DIAC: Comprehensive Datasheet Overview and Top Applications
The breakover voltage is the absolute threshold at which the DIAC snaps from an off-state (high resistance) to an on-state (low resistance). For the standard DB2 series, this typically ranges between , ensuring crisp triggering when tied to standard AC mains phase-shifting networks. 2. Breakover Voltage Symmetry ( diac db2 datasheet pdf 14 top
Based on standard manufacturer data, the DB2 typically features the following electrical ratings: Typical Value VBOcap V sub cap B cap O end-sub 28 – 36 (32 typical) Breakover Voltage Symmetry Breakover Current IBOcap I sub cap B cap O end-sub 50 – 100 Repetitive Peak On-State Current ITRMcap I sub cap T cap R cap M end-sub Power Dissipation PDcap P sub cap D Operating Temperature Tjcap T sub j -40 to +125 Sources: Features & Characteristics Datasheet - DB3, DB4, SMDB3 - Diac - STMicroelectronics Breakover Voltage Symmetry ( Based on standard manufacturer
: The DB3 is the closest match. The only difference is IBO (50 µA vs 200 µA for DB2). In many circuits, they are interchangeable. Used in heating systems, soldering irons, or small
Used in heating systems, soldering irons, or small ovens to control the heating element power. Datasheet Structure: Reading the PDF
) : Typically ranges between , serving as a highly stable, fixed voltage reference. Breakover Current ( IBOcap I sub cap B cap O end-sub
Capable of handling high peak currents for short durations. Top 14 Technical Characteristics (DB2/DB3 Series Overview)