The NTE5508 with Stud Thyristor is a 500V, 16A, 30mA, TO48 stud thyristor manufactured by NTE. It is used in applications such as AC switching, phase control, and surge suppression for motor drives and HVAC equipment. It operates at high switching speeds and is capable of handling peak currents of 16A. It features a fast response time and low on-state voltage drop. The NTE5508 also features a high stable voltage between gate and cathode of 30mA, along with a breakdown voltage of 500V. The NTE5508 is manufactured with a TO48 package, making it suitable for a range of applications.