Diac Db2 Datasheet Pdf 14 Top Jun 2026

This is the voltage across the DIAC when it is conducting. For DB3 devices, the typical VO is often , but datasheets for DC34/DB4/etc. show values around 5V as well. This low on-state voltage drop is why the DIAC is an efficient trigger.

: In some configurations, a DIAC can act as a low-cost overvoltage protection device. If the voltage across a protected circuit exceeds the DIAC's VBO, it will short, triggering a protection mechanism. diac db2 datasheet pdf 14 top

While a standalone DB2 datasheet can be elusive, manufacturers of DIACs often provide comprehensive datasheets covering entire series, such as the widely available "DB3/DC34/DB4/DB6" datasheets from various manufacturers. The DB2 is often included in this family, with similar construction and application guidelines. This is the voltage across the DIAC when it is conducting

: Its primary role is to provide a reliable, symmetrical trigger pulse to fire a TRIAC in AC power control applications. This setup is used in household dimmer switches, fan speed regulators, electric heater controls, and universal motor speed controls for power tools. The DIAC ensures the TRIAC fires cleanly and evenly at the desired point in each AC half-cycle. This low on-state voltage drop is why the

Based on technical documentation from manufacturers like STMicroelectronics and DNA Solutions , here are the key performance highlights: