THYRISTOR WHICH IS A SEMICONDUCTOR DEVICE WHICH ACTS AS A SWITCH. THE DEVICE IS TURNED ON AT THE APPROPRIATE TIME BY A TRIGGER PULSE APPLIED TO THE GATE, AND THE DEVICE WILL REMAIN ON UNTIL THE INSTANTANEOUS LOAD CURRENT THROUGH IT DROPS TO ZERO.

CLASSIFICATION IS DETERMINED ACCORDING TO GIR'S 1 & 6. CN: 85413000, INCLUDES THYRISTORS.