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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 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
SMDB3
1.00 A
DB3 / DB4
2.
DB3 Datasheet
