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DB3 – Bi Directional Diac
3,00 EGP
In stock
In stock
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On the same day
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1-3 Days
Specification
Overview
Weight | 0,0000 g |
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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:
- Below 30V: The DB3 remains OFF, acting as an open circuit.
- At 30V – 40V (Breakover Voltage): The DIAC conducts, allowing current to flow and triggering the TRIAC in an AC control circuit.
- 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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