1.8 kV blocking, 844 A average — a heavy-duty SCR for industrial power
The Infineon T830N18TOFXPSA1 is a single SCR thyristor in the standard DO-200AB B-PUK package with clamp-on mounting, rated for 1.8 kV off-state voltage and 844 A average on-state current (1500 A RMS). It handles a non-repetitive surge of 14500 A at 50 Hz, making it suitable for high-power rectifier stages, DC motor drives, and traction power supplies where fault current withstand is a design requirement.
Gate drive requirements — 250 mA trigger, 1.5 V gate
Gate trigger current is 250 mA max and gate trigger voltage is 1.5 V max, which means the driver stage must supply a clean, fast-rising pulse of at least that magnitude to guarantee turn-on across temperature. The hold current of 300 mA sets the minimum load current needed to keep the SCR latched after the gate pulse is removed — a consideration if the load is intermittent or lightly coupled.