How to find pin connections for SCR BT151 - YouTube
BT151 SCR (Thyristor) Datasheet, Pinout, Features & Equivalents
5 x NXP BT151-800R Thyristor 800V 7.5A 15mA 3-Pin TO-220AB AC Power Control 240V | eBay
IIVVERR 10 Pcs BT151-500R SOT78 Package Motor Control SCR Thyristors 500V 12A (10 Pcs BT151-500R SOT78 Paquete de Control de Motor Tiristores SCR 500V 12A: Amazon.com: Industrial & Scientific
5pcs BT151-500R TO-220 12A 500V BT151 Thyristor Motor Control SCR – eElectronicParts