The DB2 is a popular variant because its symmetrical switching characteristic generates a clean trigger pulse for a TRIAC gate, making it ideal for dimmers, motor speed controllers, and heat regulators.
It screams a sharp, high-current pulse into the TRIAC. It’s not a hesitant tickle; it is a violent electrical shove. The TRIAC snaps open instantly, fully and completely. The lights fade smoothly. The motor hums quietly.
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The keyword phrase “diac db2 datasheet pdf 14 top” suggests a user is looking for a PDF datasheet that includes – in other words, a datasheet that highlights the 14 most important electrical and mechanical specifications for the DB2. Alternatively, “14 top” might refer to an asymmetric DIAC with a 14 V breakover voltage in one direction (though that is more typical of the ST4, not DB2).
). Unlike a standard diode, it conducts current in both directions. The DB2 is a popular variant because its
Calculate the for a dimmer circuit . Suggest TRIAC pairings based on load size . Let me know what you are building! DB2 DIAC datasheets
: The ST DB3/DB4 Datasheet is the industry standard for this class of DIAC. The TRIAC snaps open instantly, fully and completely
This brings us back to your datasheet. That number you see on the page isn't just a statistic; it is the "Red Line."
Before applying a DB2 DIAC to a hardware design, certain fundamental criteria from its Alldatasheet Archive profiles must be evaluated: Datasheet - DB3, DB4, SMDB3 - Diac - STMicroelectronics
While a dedicated is elusive, this article has compiled all the essential “14 top” specifications you need – from breakover voltage and current ratings to package details and application circuits. The DB2 functions as a 28–36 V bidirectional trigger diode in a DO‑35 package, serving as a direct equivalent to the well‑known DB3. For design and troubleshooting, you can confidently substitute the DB2 with any standard 30 V DIAC.
| Parameter | Value / Range | | --------------------- | ------------------------------------ | | | Bidirectional trigger diode (DIAC) | | Full name | Diode for Alternating Current (DB2) | | Breakover voltage (VBO) | Typically 28 V – 36 V (similar to DB3) | | Peak current | Up to 2 A (surge) | | Case style | DO-35 (glass axial lead) | | Operating temp. | –40 °C to +100 °C | | Typical application | AC dimmer, triac trigger, relaxation oscillator |