Typical Parameters Parameter Symbol Typical Value / Description Module Type - Phase-Control Thyristor Module (Half-Controlled Bridge) Circuit Configuration - T21 (Two thyristors + two diodes, forming a half-controlled bridge leg). Repetitive Peak Off-State Voltage VDRM / VRRM 800 V to 1600 V (Common ratings: 1200V, 1400V, 1600V). Average On-State Current (Per Thyristor) IT(AV) 220 A (At a specified case temperature, e.g., Tc=80°C). This is likely the rated current indicated by "220" in the model. RMS On-State Current IT(RMS) ~ 347 A (Approx. π * IT(AV) for sine wave conduction). Non-Repetitive Peak Surge Current ITSM 3000 A to 4000 A (Typical for 10 ms half-sine wave). Gate Trigger Current IGT 200 mA (Typical). Gate Trigger Voltage VGT 1.5 V (Typical). Thermal Resistance, Junction-to-Case Rth(j-c) 0.08 °C/W to 0.12 °C/W (Per thyristor/diode, typical). Isolation Voltage Visol 2500 V RMS (Min., baseplate to terminals). Mounting - Module with isolated baseplate for screw mounting onto a heatsink with thermal grease. Terminals - Screw terminals for main power (AC input, DC output) and gate control signals. Operating Junction Temperature Tj -40 °C to +125 °C (Standard range).