View bt169 utc datasheet:

UTC BT169 SCR DESCRIPTION The UTC BT169 is glass passivated, sensitive gate thyristors in a plastic envelope, intended for use in general purpose switching and phase control applications. These devices are intended to be interfaced directly to microcontrollers, logic integrated circuits and other low power gate trigger circuits. 1 TO-92 1:CATHODE 2:GATE 3:ANODE QUICK REFERENCE DATA PARAMETER SYMBOL MAX(B) MAX(D) MAX(E) MAX(G) UNIT Repetitive peak off-state voltages VDRM, VRRM 200 400 500 600 V Average on-state current IT(AV) 0.5 0.5 0.5 0.5 A RMS on-state current IT(RMS) 0.8 0.8 0.8 0.8 A Non-repetitive peak on-state current ITSM 8 8 8 8 A ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL CONDITIONS MIN MAX UNIT Repetitive peak off-state voltages : VDRM,VRRM B:200 V D:400 E