STMicroelectronics BUL39D NPN Transistor, 4 A, 450 V, 3-Pin TO-220
STMicroelectronics BUL39D NPN Transistor, 4 A, 450 V, 3-Pin TO-220, Mounting Type: Through Hole, Maximum Power Dissipation: 70 W, Transistor Configuration: Single, Maximum Collector Base Voltage: 850 V, Maximum Emitter Base Voltage: 9 V, Number of Elements per Chip: 1, Dimensions: 9.15 x 10.4 x 4.6mm, Maximum Base Emitter Saturation Voltage: 1.3 V, Maximum Collector Emitter Saturation Voltage: 1.1 V, Maximum Operating Temperature: +150 °C