Bourns TISP4C350H3BJR-S Thyristor 350V, 2.1A, 2-Pin SMB
57mm, Width: 3.1A, 2-Pin SMB, Peak On-State Voltage: ±3V, Maximum Holding Current: 600mA, Repetitive Peak Forward Blocking Voltage: ±275V, Repetitive Peak Off-State Current: ±10µA, Mounting Type: Surface Mount, Dimensions: 4.