Single Thyristor Module, what is a power thyristor, Current controller - tatanh1983/conchodom GitHub Wiki

MCO150 Series 1200 Vdrm 149 A 1.16 V 150 mA Single Thyristor Module - SOT-227B https://www.futureelectronics.com/p/electromechanical--circuit-protection--power-thyristors/mco150-12io1-ixys-9856527