The STMicroelectronics T835-600B-TR is a Triac, or Triode for Alternating Current. It is a type of thyristor, which is a semiconductor device with three layers of an alternate type of doped material. The T835-600B-TR is rated for 8.0 Amps and 600 Volts. This part is intended for use in power switching applications in industrial control, lighting, motor control, and heating applications. It can be used for phase control, AC power switching, or load control. The T835-600B-TR features symmetrical non-parallel MT2 gate triggering and is intended for use with a zero crossing detector.