DB3 DIAC

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Overview
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DB3 DIAC is a bidirectional semiconductor device designed to conduct current only after its breakover voltage is reached in either direction. Once triggered, it allows current to flow and is commonly used to provide a sharp and reliable trigger pulse to TRIACs in AC control circuits.

The DB3 DIAC is mainly used in phase angle control applications such as light dimmers, fan speed controllers, heater controls, and AC motor regulators. Its symmetrical triggering characteristics ensure consistent performance on both halves of the AC cycle, resulting in stable and smooth control.

Due to its simple operation, reliability, and low cost, the DB3 DIAC is widely used in power electronics projects, industrial control circuits, and electronics learning kits. It is suitable for students, hobbyists, and professionals working with AC power control systems.

🔹 Key Technical Information (Important)

Device Type: DIAC (Bidirectional Trigger Diode)
Typical Breakover Voltage: ~30V – 32V
Bidirectional Operation
No polarity required
Used mainly for TRIAC triggering
Package Type: DO-35 / DO-41 (common)

🔹 Common Applications

Light dimmer circuits
Fan speed regulators
AC motor control
Heater and power control circuits
TRIAC triggering circuits
Electronics learning and training kits

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DB3 DIAC

৳3

Overview

Reviews

Detail Description

🔹 Key Technical Information (Important)

🔹 Common Applications

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DB3 DIAC

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