DB3 DIAC Diode – Bidirectional Trigger Diode

DB3 DIAC Diode functions as a high-speed bidirectional trigger switch for AC power control circuits. Specifically, this component remains in a non-conductive state until the applied voltage reaches the breakover threshold. Consequently, engineers utilize the DB3 primarily to provide stable triggering pulses for TRIACs and Thyristors.

Advanced Triggering Performance

The DB3 series features a symmetrical switching characteristic. Specifically, it conducts current in both directions once the voltage exceeds approximately 32V. Additionally, the low on-state voltage drop ensures efficient energy transfer within the circuit. Furthermore, the device offers a high-temperature stability range. Consequently, this diode maintains consistent performance even under heavy thermal loads in compact power supplies.

Industrial and Domestic Applications

Moreover, this DIAC excels in various electronic environments. It serves as the core timing component in light dimmers, heating controls, and universal motor speed controllers. Additionally, the DB3 is a standard part in electronic ballasts for fluorescent lamps. Furthermore, the DO-35 glass packaging provides excellent moisture resistance and durability. Specifically, the lead-free construction complies with modern environmental standards for global distribution.

Verified Data Sheet