Continue to operate your scr MCR12LDG thyristor manufactured from ON Semiconductor by applying a forward-biased voltage. This device has a surge current rating of 100 A. This product comes in rail packaging to keep individual parts separated and protected. This SCR thyristor has a minimum operating temperature of -40 °C and a maximum of 125 °C. Its repetitive peak forward blocking voltage is 400 V, while its repetitive peak reverse voltage is 400 V.