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DB3 – Bi Directional Diac

3,00 EGP

In stock

In stock

Shipping & Delivery

  • Local pickup

Receipt from the place on the same day or shipping to nearby places

On the same day

6PM - 10 PM

  • Shipping company

Delivery through a fast shipping company intermediary

1-3 Days

 

Specification

Overview

Weight 0,0000 g

Description

The DB3 is a bidirectional DIAC (Diode for Alternating Current) commonly used in triggering TRIACs for AC switching applications like dimmer circuits, motor speed control, and power regulation.


⚡ Specifications:

  • Breakover Voltage (V_BO): 30V – 40V
  • Breakover Current (I_BO): ~0.5mA
  • Holding Current (I_H): ~5mA
  • Maximum Voltage: 32V (typical)
  • Maximum Current: 2A (pulsed)
  • Package: DO-35 (small diode-like package)
  • Bidirectional Operation: Works in both AC half-cycles

🔌 How It Works:

  1. Below 30V: The DB3 remains OFF, acting as an open circuit.
  2. At 30V – 40V (Breakover Voltage): The DIAC conducts, allowing current to flow and triggering the TRIAC in an AC control circuit.
  3. Below Holding Current (~5mA): It turns OFF until the voltage reaches breakover again.

📌 Applications:

TRIAC Triggering (dimmer circuits, fan regulators)
AC Motor Speed Control
Light Dimmers
Heater Control Circuits
Oscillator Circuits

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