Compelete Overview Of Db3 Trigger Diode From Stmicroelectronics

Functioning as a cause diode with a hard and fast voltage reference, the DB3/DB4 collection may be used along side triacs for simplified gate manage circuits as a beginning detail in fluorenscent lamp ballasts. A new floor mount model is now to be had in SOT-23 package, offering decreased area and compatibility with computerized select out and region equipment.

Source: https://www.utmel.com/productdetail/stmicroelectronics-db3-5656090