DIAC diode,the breakover symmetry is within 3V(LLDB3,LLDB4,LLDC34) or 4V(LLDB6).
Package: Minimelf Glass

Silicon Bidirectional Diac LLDB3:28V-36V

LLDC34:30V-34V

LLDB4:35V-45V

LLDB6:56V-70V

Package:Minimelf

Mainly used on energy saving lighting or electronic ballast