Reverse Blocking Thyristor 800V IT(RMS) 16A RMS, ITSM 160A, IGT 40mA, 20W TO220AB, equivalent for: 2N6400 2N6400G 50V, 2N6401 2N6401G 100V, 2N6403 2N6403G 400V, 2N6404 2N6404G 600V, 2N6405 800V.