View s1233 datasheet:

Bulletin I0142J 01/01 S1233 PHASE CONTROL THYRISTORS Junction Size : Square 340 mils - IR343SG12H/ S1233 Wafer Size : 4" VRRM / VDRM Class : 1200 V Passivation Process : Glassivated MESA Reference IR Packaged Part : 50RIA Series Major Ratings and Characteristics Parameters Units Test Conditions VTM Typical On-state Voltage 1.2 V TJ = 25°C, IT = 25 A VRRM / VDRM Direct and Reverse Breakdown Voltage 1200 V TJ = 25°C, IDRM /IRRM = 100 µA (1) IGT Required DC Gate Current to Trigger 5 to 100 mA TJ = 25° C, anode supply = 6 V, resistive load VGT Max. Required DC Gate Voltage to Trigger 2 V TJ = 25° C, anode supply = 6 V, resistive load IH Holding Current Range 5 to 200 mA Anode supply = 6 V, resistive load IL Maximum Latching Current 400 mA Anode supply = 6 V, resistive load (1)