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Engineers and hobbyists seeking technical specifications frequently search for the functional information contained within a query to understand electrical limits, package dimensions, and alternative component options. What is a DIAC? diac db2 datasheet pdf 14 top
: DB-series DIACs are employed as starting elements in electronic ballasts for fluorescent lamps, where they help generate the high-voltage pulse needed to initiate the gas discharge in the tube. [Search ST
The Voltage-Current (V-I) curve for a DB2 DIAC is S-shaped, showing symmetry in both the positive and negative quadrants: Until VBOcap V sub cap B cap O end-sub is reached, the DIAC leaks a tiny amount of current ( IRcap I sub cap R Breakover Point: At VBOcap V sub cap B cap O end-sub , the resistance drops sharply. : DB-series DIACs are employed as starting elements
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 (
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