The MCR08L-2-AA3-R from Unisonic Technologies is a Silicon Controlled Rectifier with Breakover Voltage 200 V, Breakover Current 8.0 A, Gate Trigger Voltage 0.8 V, Gate Trigger Current 200 uA, Temperature Operating Range -40 to 110 Degree C. Tags: Surface Mount. More details for MCR08L-2-AA3-R can be seen below.