Used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts.DIAC is a semiconductor device that has three layers and two junctions. The word DIAC consists of two parts, DI and AC. The DI stands for the diode (or two. Like Di, Tri, Quad, Penta, etc.) and AC stands for Alternating Current. DIAC is the acronym of the diode for alternating current. The DIAC is a combination of two diodes in parallel, one in forward bias and the other one is in reverse bias condition with respect to both sides. DIAC is a specially constructed diode, which allows current to pass in both directions when certain conditions are met.
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DB3 DIAC - Trigger Mode - 5 Pieces Pack
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The DB3 DIAC is a bidirectional trigger diode commonly used to trigger TRIACs in AC switching and phase control circuits. It provides a sharp breakover voltage, allowing it to conduct current once a specific voltage threshold is reached, making it ideal for controlling the gate of TRIACs in dimmers, motor controls, and light switches. The DB3 ensures reliable and symmetrical triggering in both directions of AC voltage.
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