4JX12A839

The 4JX12A839 is a legacy silicon controlled rectifier (thyristor) originally manufactured by General Electric Co. Designed for military and industrial applications, this component features a threaded stud and two tab solder lug terminals for robust electrical connections. Its compact size, under 0.400 inches in length, makes it suitable for specialized circuits requiring reliable controlled rectification. With a National Stock Number of 5961-00-102-1578, this part meets stringent standards for durability and performance in demanding environments.