2SC519A Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 110 V
• Collector-Base Voltage, max: 130 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 7 A
• Collector Dissipation: 50 W
• DC Current Gain (h_fe): 30 to 300
• Transition Frequency, min: 10 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-3

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SC519A might only be marked "C519A".The complementary PNP transistor to the 2SC519A is the 2SA656A.You can replace the 2SC519A with the BUY69C or BUY70C.