DB3 DIAC Trigger Diode DO35 32V Bidirectional Trigger Device
DB3 is a bidirectional DIAC trigger diode designed for reliable triggering of TRIAC and SCR circuits. It features a DO-35 hermetically sealed glass axial package, low breakover current, excellent voltage symmetry, and stable switching characteristics. Commonly used in light dimmers, fan regulators, motor speed controllers, heating controls, and electronic ballast circuits. The glass-passivated construction ensures high reliability and long service life in industrial and commercial applications.
Key Specifications
Parameter Value
Part Number DB3
Device Type DIAC Trigger Diode
Package DO-35 Glass Axial
Power Dissipation 150mW
Breakover Voltage (VBO) 28V to 36V (Typ. 32V)
Breakover Current 50µA Max
Peak On State Current 2A
Operating Temperature -40°C to +125°C
Mounting Type Through Hole
Polarity Bidirectional
RoHS Yes
Applications
• TRIAC Trigger Circuits
• SCR Trigger Circuits
• AC Light Dimmers
• Fan Speed Regulators
• Universal Motor Speed Controllers
• Heat Control Equipment
• CFL LED Ballast Starting Circuits
• Industrial Control Systems
Search Keywords
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