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 fluorenscent lamp ballasts.
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DB4. For precise diagrams, and layout, please refer to the original PDF.
DB3 DB4 SMDB3 ® DIAC FEATURES s VBO : 32V and 40V s LOW BREAKOVER CURRENT DESCRIPTION Functioning as a trigger diode with a fixed voltage reference, the DB3/DB4 series ca...
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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 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. DO-35 (DB3 and DB4) 2 3 1 SOT-23 (SMDB3)* Pin 1 and 3 must be shorted together ABSOLUTE MAXIMUM RATINGS (limiting values) Symbol Parameter ITRM Repetitive peak on-state current tp = 20 µs F= 120 Hz Tstg Storage temperature range Tj Operating junction temperature range Value Unit SMD