DB3 Diac

The DB3 Diac is a semiconductor device widely used in triggering applications for triacs and other thyristors in AC circuits. It is designed to break down and conduct when a certain voltage threshold is reached, ensuring consistent and reliable performance in various electronic applications. The DB3 is known for its robustness and reliability, making it a popular choice in light dimmers, motor speed controllers, and other phase control circuits.

Key Features:

• Breakover Voltage: Typically around 30-36 volts
• Low On-State Voltage Drop: Ensures efficient conduction once triggered
• Bidirectional Operation: Can conduct current in both directions, ideal for AC applications
• Small Package: Available in a TO-92 or DO-35 package, making it easy to integrate into circuits

Specifications:

• Breakover Voltage (VBO): 30V to 36V
• Breakover Current (IBO): Maximum of 50µA
• Holding Current (IH): Typically around 5mA
• Package Types: DO-35
• Maximum Repetitive Peak Off-State Voltage (VDRM): 300V

Applications:

• Triggering Triacs and Thyristors: Used to initiate the conduction in triacs and thyristors by providing a trigger pulse.
• Phase Control Circuits: Essential in circuits like light dimmers and motor speed controllers where phase control is required.
• Over-Voltage Protection: Acts as a protective device in circuits to prevent over-voltage conditions.
• Pulse Generation Circuits: Used in generating sharp pulses required for triggering and timing purposes.

Why Choose DB3 Diac?

• Reliability: Known for consistent performance and long-term reliability.
• Efficiency: Low on-state voltage drop ensures minimal power loss.
• Compact: Small package size allows for easy integration into various circuit designs.
• Versatile: Suitable for a wide range of applications, from consumer electronics to industrial control systems.

Package Includes:

• 1 x DB3 Diac