Types of Power Thyristor, Thyristor protection circuit, Triac thyristor circuits - tatanh1983/conchodom GitHub Wiki
SMDB3 Series 32 Vdrm 1 A Breakover Diode for Alternating Current SOT-23 https://www.futureelectronics.com/p/electromechanical--circuit-protection--protection-thyristors/smdb3-stmicroelectronics-8128555