The DB series is generally available in a standard, low-cost, axial-lead . It is a small, cylindrical, hermetically sealed package that is easy to handle and solder onto circuit boards, ideal for through-hole mounting in light dimmers and power control circuits.
Unlike a standard diode, the DB2 is a true full-wave device. It can be turned on in both forward and reverse directions, enabling it to generate a trigger pulse on both halves of the AC sine wave, which is the core requirement for controlling AC power.
If you require a , that component does not exist in standard DB2 series. You may need a SIDAC (e.g., K2400 series) or a custom trigger diode. Please re-check the marking on your physical component – it may be DB3 with "14" as a lot code. diac db2 datasheet pdf 14 top
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The DB2 triggers in both positive and negative AC half-cycles, allowing for symmetrical triggering of Triacs. Low Breakover Voltage ( VBOcap V sub cap B cap O end-sub The DB series is generally available in a
Designed to consistently trigger at the designed voltage, reducing jitter in dimmer circuits. DB2 DIAC Operating Principle and Circuit Application
When it reaches its limit, the DB2 doesn't just "leak" current; it undergoes a rapid internal change where its resistance actually drops as current increases. This creates the high-speed pulse needed to wake up larger power components. It can be turned on in both forward
Always download the latest datasheet PDF from an authorized distributor or manufacturer to ensure you have the most up-to-date electrical ratings. The 14 parameters listed here give you 95% of what you need for a successful design.
: The voltage reaches the specific DB2 threshold (typically between 25V and 30V ).
3V . Minimal asymmetry eliminates DC offsets in the circuit, protecting inductive loads from harmonic saturation. 3. Repetitive Peak On-State Current ( ITRMcap I sub cap T cap R cap M end-sub
Available in compact axial leaded or surface mount packages, perfect for high-density circuits. Low Leakage Current ( IRcap I sub cap R ): Extremely low off-state leakage ( ) ensures efficiency and low standby power consumption. High Peak On-State Current ( ITRMcap I sub cap T cap R cap M end-sub
