BOURNS
晶闸管, -170 V, 5 mA, -5 μA, SOIC, 8 引脚
STMICROELECTRONICS
三端双向可控硅, 600 V, DIP, 105 A
晶闸管, 120 V, -5 mA, 5 μA, SOIC, 8 引脚