The MCO801-14io1 from Littelfuse is a Silicon Controlled Rectifier with Breakover Voltage 1400 V, Breakover Current 2335 A, Gate Trigger Voltage 0.8 V, Gate Trigger Current 30000 A, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for MCO801-14io1 can be seen below.