Datasheet4U Logo Datasheet4U.com

SMDB3 - Diac

General Description

Functioning as a trigger diode with a fixed voltage reference, the DB3/DB4 series can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts.

Key Features

  • VBO : 32 V and 40 V.
  • Low breakover current.
  • Breakover voltage symmetry : 3V.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
SMDB03 TVS Micro Commercial Components
SMDB03 4 LINE TVSarray Microsemi
SMDB03C TVS Micro Commercial Components
SMDB03C 4 LINE TVSarray Microsemi
SMDB05 4 LINE TVSarray Microsemi

Other Datasheets by STMicroelectronics

Part Number Description

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
DB3, DB4, SMDB3 Datasheet Diac DO-35 2 3 1 SOT-23 Pin 1 and 3 must be shorted together Features • VBO : 32 V and 40 V • Low breakover current • Breakover voltage symmetry : 3V • ECOPACK®2 compliant Applications • Triggering device for Triac or SCR based motor / light dimmer • 32 V trigger device for oscillator circuit • Start up triggering in lighting ballast for CFL, TL or LED lamps Description Functioning as a trigger diode with a fixed voltage reference, the DB3/DB4 series can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts. The surface mount SOT23-3L package allows compact, SMD based designs for automated manufacturing.