BU2520DX NPN Transistor 800V 10A 45W TO-3PML

From the shop's description

Specifications: Type Designator: BU2520DX Material of Transistor: Si Polarity: NPN Maximum Collector Power Dissipation (Pc): 45 W Maximum Collector-Base Voltage |Vcb|: 1500 V Maximum Collector-Emitter Voltage |Vce|: 800 V Maximum Emitter-Base Voltage |Veb|: 7.5 V Collector Current Continuous : 10 A Max. Operating Junction Temperature (Tj): 150 °C Package: TO-3PML BU2520DX Datasheet