Overview Product Description BT157.pdf SCR Thyristor Fast Gate Turn Off GTO ; turned both on and off via the gate. Product Videos Custom Field Product Reviews Write a Review Write a Review × NXP BT157-800 ; SCR Thyristor GTO Fast Gate Turn Off 800V Iav:3.2A, TO-220 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *