Product Summary

The DB3 ST is a trigger diode with a fixed voltage reference. The DB3 ST can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorenscent lamp ballasts. A new surface mount version is now available in SOT-23 package, providing reduced space and compatibility with automatic pick and place equipment.

Parametrics

DB3 ST absolute maximum ratings: (1)Repetitive peak on-state current tp=20 μs,F= 120 Hz:2.0A; (2)Storage temperature range:-40℃ to +125℃; (3)Operating junction temperature range:-40℃ to +125℃.

Features

DB3 ST features: (1)VBO : 32V and 40V; (2)low breakover current.

Diagrams

DB3 ST test circuit