BTA208-600D,127 is a Triac made by NXP Semiconductors. It is an silicon-controlled rectifier, specifically a 600 V, 8 A device with a triggered gate. It is typically used for phase control in AC switching applications. It features symmetrical triggering characteristics from both its anode and cathode sides, making it suitable for use in sensitivity applications. The BTA208-600D,127 also features snap off which is designed to safely start up the thyristor. It has a voltage sensitive gate which is triggered at a certain voltage level, making it suitable for the use in AC motor control applications.